US20230167487A2 - Crispr cascade assay - Google Patents

Crispr cascade assay Download PDF

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US20230167487A2
US20230167487A2 US17/861,209 US202217861209A US2023167487A2 US 20230167487 A2 US20230167487 A2 US 20230167487A2 US 202217861209 A US202217861209 A US 202217861209A US 2023167487 A2 US2023167487 A2 US 2023167487A2
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nucleic acid
nucleotides
length
sequence
reaction mixture
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Anurup GANGULI
Ariana Mostafa
Jacob Berger
Ashish Pandey
Rashid Bashir
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University of Illinois
Vedabio Inc
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University of Illinois
Labsimply Inc
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Definitions

  • the present disclosure relates to methods, compositions of matter and assay systems used to detect one or more target nucleic acids of interest in a sample.
  • the assay systems provide signal amplification upon detection of a target nucleic acids of interest without amplification of the target nucleic acids.
  • viral pathogens such as SARS-CoV-2
  • COVID-19 disease require immediate detection and response to decrease mortality, morbidity and transmission.
  • Classic nucleic acid-guided nuclease or CRISPR (clustered regularly interspaced short palindromic repeats) detection methods usually rely on pre-amplification of target nucleic acids of interest to enhance detection sensitivity.
  • amplification increases time to detection and may cause changes to the relative proportion of nucleic acids in samples that, in turn, lead to artifacts or inaccurate results.
  • Improved technologies that allow very rapid and accurate detection of pathogens are therefore needed for timely diagnosis, prevention and treatment of disease, as well as in other applications.
  • the present disclosure provides compositions of matter, methods, and cascade assays to detect target nucleic acids of interest.
  • the cascade assays described herein comprise two different ribonucleoprotein complexes and either blocked nucleic acid molecules or blocked primer molecules.
  • the blocked nucleic acid molecules or blocked primer molecules keep one of the ribonucleoprotein complexes “locked” unless and until a target nucleic acid of interest activates the other ribonucleoprotein complex.
  • the present nucleic acid-guided nuclease cascade assay can detect one or more target nucleic acids of interest (e.g., DNA, RNA and/or cDNA) at attamolar (aM) (or lower) limits in about 10 minutes or less without the need for amplifying the target nucleic acid(s) of interest, thereby avoiding the drawbacks of multiplex amplification, such as primer-dimerization.
  • a particularly advantageous feature of the cascade assay is that, with the exception of the gRNA in RNP1, the cascade assay components stay the same no matter what target nucleic acid(s) of interest are being detected. In this sense, the cascade assay is modular.
  • reaction mixture comprising: (i) a first ribonucleoprotein (RNP) complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (ii) a second ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; and (iii) a plurality of blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the blocked nucle
  • a reaction mixture comprising: (i) a first complex comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (ii) a second complex comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; and (iii) a plurality of blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the blocked nucleic acid molecule cannot activate the first or second complex.
  • gRNA guide RNA
  • a reaction mixture comprising: (i) a first ribonucleoprotein (RNP) (RNP1) complex comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both sequence-specific activity and non-sequence-specific activity; (ii) a second ribonucleoprotein (RNP2) complex comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both sequence-specific activity and non-sequence-specific activity; and (iii) a plurality of blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the blocked nucleic acid molecules do not
  • a reaction mixture comprising: (i) a first complex comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both sequence-specific activity and non-sequence-specific activity; (ii) a second complex comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both sequence-specific activity and non-sequence-specific activity; and (iii) a plurality of blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the blocked nucleic acid molecules are not recognized by the RNP1s or RNP2s.
  • gRNA guide RNA
  • a fifth embodiment provides a cascade assay method for detecting a target nucleic acid of interest in a sample comprising the steps of: (a) providing a reaction mixture comprising: (i) a first ribonucleoprotein (RNP) complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (ii) a second ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; and (iii) a pluralit
  • a kit for detecting a target nucleic acid of interest in a sample comprising: (i) a first ribonucleoprotein (RNP1) complex (RNP1) comprising a first nucleic acid-guided nuclease and a first gRNA, wherein the first gRNA comprises a sequence complementary to the target nucleic acid of interest; and wherein binding of the RNP1 complex to the target nucleic acid of interest activates cis-cleavage and trans-cleavage activity of the first nucleic acid-guided nuclease; (ii) a second ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; a (iii) plurality of blocked nucleic acid molecules comprising a sequence corresponding to the second gRNA, wherein trans-cleavage activity of the blocked nucleic acid molecules results in
  • the first and/or second nucleic acid-guided nuclease is a Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, Cas13b nuclease; in some aspects, the first nucleic acid-guided nuclease can is a different nucleic acid-guided nuclease than the second nucleic acid-guided nuclease; in some aspects, the first and/or second nucleic acid-guided nuclease is a Type V nucleic acid-guided nuclease or a Type VI nucleic acid-guided nuclease and/or in some aspects, the first and/or second nucleic acid-guided nuclease comprises a RuvC nuclease domain or a RuvC-like nuclease domain
  • the blocked nucleic acid molecules comprise a structure represented by any one of Formulas I-IV, wherein Formulas I-IV comprise in the 5′-to-3′ direction:
  • the blocked nucleic acid molecules comprise a first sequence complementary to the second gRNA and a second sequence not complementary to the second gRNA, wherein the second sequence at least partially hybridizes to the first sequence resulting in at least one loop.
  • the reaction mixture comprises about 1 fM to about 10 ⁇ M of the RNP1 and in some aspects the reaction mixture comprises about 1 fM to about 1 mM of the RNP2.
  • the reaction mixture comprises at least two different RNP1s, wherein different RNP1s comprise different gRNA sequences, and in some aspects the reaction mixture comprises 2 to 10000 different RNP1s, or 2 to 1000 different RNP1s, or 2 to 100 different RNP1s, or 2 to 10 different RNP1s.
  • the blocked nucleic acid molecules include the sequence of any one of SEQ ID NOs: 14-1421.
  • the blocked nucleic acid molecules are circular, and in some aspects the blocked nucleic acid molecules are linear.
  • the K d of the blocked nucleic acid molecules to the RNP2 is about 10 5 -fold greater, 10 6 -fold greater, 10 7 -fold greater, 10 8 -fold greater, 10 9 -fold greater, 10 10 -fold greater or more than the K d of unblocked nucleic acid molecules.
  • the target nucleic acid of interest is of bacterial, viral, fungal, mammalian or plant origin
  • the sample may include peripheral blood, serum, plasma, ascites, urine, cerebrospinal fluid (CSF), sputum, saliva, bone marrow, synovial fluid, aqueous humor, amniotic fluid, cerumen, breast milk, broncheoalveolar lavage fluid, semen, prostatic fluid, cowper's fluid or pre-ejaculatory fluid, sweat, fecal matter, hair, tears, cyst fluid, pleural and peritoneal fluid, pericardial fluid, lymph, chyme, chyle, bile, interstitial fluid, menses, pus, sebum, vomit, vaginal secretions, mucosal secretion, stool water, pancreatic juice, lavage fluids from sinus cavities, bronchopulmonary aspirates, blastocyl cavity fluid, and umbilical cord blood; food; agricultural
  • the reaction mixture further comprises a reporter moiety: wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule that is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2.
  • the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1; in some aspects, the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or optical signal; and/or in some aspects, the reporter moiety comprises a modified nucleoside or nucleotide including but not limited to locked nucleic acids (LNAs), peptide nucleic acids (PNAs), 2′-O-methyl (2′-O-Me) modified nucleosides, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bonds.
  • LNAs locked nucleic acids
  • PNAs peptide nucleic acids
  • 2′-O-methyl (2′-O-Me 2′-O-methyl
  • 2′-F 2′-fluoro (2′-F) modified nucleoside
  • PS phosphorothioate
  • the blocked nucleic acid molecules do not comprise a PAM sequence, yet in other aspects, the blocked nucleic acid molecules comprise a PAM sequence, and in some aspects the PAM sequence is disposed between the first and second sequences, wherein the first sequence is 5′ to the PAM sequence.
  • the blocked nucleic acid molecule is a blocked primer molecule.
  • a blocked nucleic acid molecule comprising: a first region recognized by a ribonucleoprotein (RNP) complex; one or more second regions not complementary to the first region; and one or more third regions complementary and hybridized to the first region, wherein cleavage of the one or more second regions results in dehybridization of the third region from the first region, resulting in an unblocked nucleic acid molecule.
  • RNP ribonucleoprotein
  • An eighth embodiment provides a method of unblocking a blocked nucleic acid comprising: (a) providing a blocked nucleic acid molecule comprising: a first region recognized by a ribonucleoprotein (RNP) complex; one or more second regions not complementary to the first region; and one or more third regions complementary and hybridized to the first region, wherein cleavage of the one or more second regions results in dehybridization of the third region from the first region, resulting in an unblocked nucleic acid molecule; and (b) initiating cleavage of the one or more second regions, wherein the blocked nucleic acid molecule becomes an unblocked nucleic acid molecule.
  • RNP ribonucleoprotein
  • a ninth embodiment provides a composition of matter comprising: a first region recognized by a ribonucleoprotein (RNP) complex; one or more second regions of not complementary to the first region; and one or more third regions complementary and hybridized to the first region, wherein cleavage of the one or more second regions results in dehybridization of the third region from the first region, resulting in an unblocked nucleic acid molecule; and the RNP complex comprising a gRNA that is complementary to the first region and a nucleic acid-guided nuclease, wherein the nucleic acid-guided nuclease exhibits both sequence-specific and non-sequence-specific nuclease activity.
  • RNP ribonucleoprotein
  • a tenth embodiment of the disclosure provides a cascade assay method of detecting a target nucleic acid of interest in a sample comprising the steps of: (a) providing a reaction mixture comprising: (i) a first ribonucleoprotein (RNP) complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (ii) a second ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; and (
  • the first and/or second nucleic acid-guided nuclease is a Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, Cas13b nuclease; in some aspects, the first nucleic acid-guided nuclease can is a different nucleic acid-guided nuclease than the second nucleic acid-guided nuclease; in some aspects, the first and/or second nucleic acid-guided nuclease is a Type V nucleic acid-guided nuclease or a Type VI nucleic acid-guided nuclease and/or in some aspects, the first and/or second nucleic acid-guided nuclease comprises a RuvC nuclease domain or a RuvC-like nuclease domain
  • the blocked nucleic acid molecule comprises a structure represented by any one of Formulas I-IV, wherein Formulas I-IV are in the 5′-to-3′ direction:
  • the blocked nucleic acid molecule comprises a modified nucleoside or nucleotide, including but not limited to a locked nucleic acid (LNA), peptide nucleic acid (PNA), 2′-O-methyl (2′-O-Me) modified nucleoside, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bond.
  • LNA locked nucleic acid
  • PNA peptide nucleic acid
  • 2′-O-methyl (2′-O-Me) modified nucleoside 2′-fluoro (2′-F) modified nucleoside
  • PS phosphorothioate
  • the blocked nucleic acid molecule includes the sequence of any one of SEQ ID NOs: 14-1421; the blocked nucleic acid molecule is a blocked primer molecule; the blocked nucleic acid molecule does not comprise a PAM sequence; and/or in some aspects the blocked nucleic acid molecule comprises a PAM sequence, and the PAM sequence is disposed between the first and second sequences, wherein the first sequence is 5′ to the PAM sequence.
  • the reaction mixture further comprises a reporter moiety: wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule that is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2.
  • the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1; in some aspects, the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or optical signal; and/or in some aspects, the reporter moiety comprises a modified nucleoside or nucleotide including but not limited to locked nucleic acids (LNAs), peptide nucleic acids (PNAs), 2′-O-methyl (2′-O-Me) modified nucleosides, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bonds.
  • LNAs locked nucleic acids
  • PNAs peptide nucleic acids
  • 2′-O-methyl (2′-O-Me 2′-O-methyl
  • 2′-F 2′-fluoro (2′-F) modified nucleoside
  • PS phosphorothioate
  • the K d of the blocked nucleic acid molecules to the RNP2 is about 10 5 -fold greater, 10 6 -fold greater, 10 7 -fold greater, 10 8 -fold greater, 10 9 -fold greater, 10 10 -fold greater or more than the K d of unblocked nucleic acid molecules.
  • composition of matter comprising a ribonucleoprotein (RNP) complex and a blocked nucleic acid molecule, wherein the blocked nucleic acid molecule is represented by any one of Formula I-IV, wherein Formulas I-IV comprise in the 5′-to-3′ direction comprises:
  • T of Formula I comprises at least 80% sequence complementarity to B and C;
  • the blocked primer molecules include the sequence of any one of SEQ ID NOs: 14-1421.
  • the RNP complex comprises a Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, Cas13b nuclease; in some aspects, the RNP complex comprises a Type V nucleic acid-guided nuclease or a Type VI nucleic acid-guided nuclease and/or in some aspects, the RNP complex comprises a RuvC nuclease domain or a RuvC-like nuclease domain and lacks an HNH nuclease domain.
  • the blocked nucleic acid molecule comprises a modified nucleoside or nucleotide comprises a locked nucleic acid (LNA), peptide nucleic acid (PNA), 2′-O-methyl (2′-O-Me) modified nucleoside, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bond.
  • LNA locked nucleic acid
  • PNA peptide nucleic acid
  • 2′-O-methyl (2′-O-Me) modified nucleoside 2′-fluoro (2′-F) modified nucleoside
  • PS phosphorothioate
  • the blocked nucleic acid molecule does not comprise a PAM sequence, and in other aspects, the blocked nucleic acid molecule comprises a PAM sequence where the PAM sequence is disposed between the first and second sequences, wherein the first sequence is 5′ to the PAM sequence. In some aspects, the blocked nucleic acid molecule is a blocked primer molecule.
  • the composition of matter further comprises a reporter moiety: wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule that is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2.
  • the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1; in some aspects, the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or optical signal; and/or in some aspects, the reporter moiety comprises a modified nucleoside or nucleotide including but not limited to locked nucleic acids (LNAs), peptide nucleic acids (PNAs), 2′-O-methyl (2′-O-Me) modified nucleosides, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bonds.
  • LNAs locked nucleic acids
  • PNAs peptide nucleic acids
  • 2′-O-methyl (2′-O-Me 2′-O-methyl
  • 2′-F 2′-fluoro (2′-F) modified nucleoside
  • PS phosphorothioate
  • reaction mixture comprising: (i) a first ribonucleoprotein (RNP) complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (ii) a second ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (iii) a plurality of template molecules comprising a sequence corresponding to the second gRNA; (iv) a plurality of blocked primer molecules comprising a sequence
  • Another embodiment provides a cascade assay method for detecting a target nucleic acid of interest in a sample comprising: (a) providing a reaction mixture comprising: (i) a first ribonucleoprotein (RNP) complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (ii) a second ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (iii) a plurality of template molecules compris
  • the K d of the blocked nucleic acid molecules to the RNP2 is about 10 5 -fold greater, 10 6 -fold greater, 10 7 -fold greater, 10 8 -fold greater, 10 9 -fold greater, 10 10 -fold greater or more than the K d of unblocked nucleic acid molecules.
  • a further embodiment provides a kit for detecting a target nucleic acid of interest in a sample comprising: (i) a first ribonucleoprotein complex (RNP1) comprising a first nucleic acid-guided nuclease and a first gRNA, wherein the first gRNA comprises a sequence complementary to the target nucleic acid of interest; and wherein binding of the RNP1 complex to the target nucleic acid of interest activates cis-cleavage and trans-cleavage activity of the first nucleic acid-guided nuclease; (ii) a second ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; (iii) a plurality of template molecules comprising a non-target sequence to the second gRNA; (iv) a polymerase and nucleotides; (v) a plurality of blocked primer molecules compris
  • the first and/or second nucleic acid-guided nuclease in the reaction mixture is a Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, Cas13b nuclease; in some aspects, the first nucleic acid-guided nuclease is a different nucleic acid-guided nuclease than the second nucleic acid-guided nuclease; in some aspects the first and/or second nucleic acid-guided nuclease is a Type V nucleic acid-guided nuclease or a Type VI nucleic acid-guided nuclease; and in some aspects, the first and/or second nucleic acid-guided nuclease comprises a RuvC nuclease domain or a RuvC-like nuclease domain and lacks an HNH
  • the blocked primer molecules comprise a first sequence complementary to the second gRNA and a second sequence not complementary to the second gRNA, wherein the second sequence at least partially hybridizes to the first sequence resulting in at least one loop; and in some aspects, the blocked primer molecules comprise a structure represented by any one of Formulas I-IV, wherein Formulas I-IV are in the 5′-to-3′ direction:
  • reaction mixture comprises about 1 fM to about 10 ⁇ M of the RNP1, and in some aspects, the reaction mixture of claim 1 , wherein the reaction mixture comprises about 1 fM to about 1 mM of the RNP2.
  • the reaction mixture comprises at least two different RNP1s, wherein different RNP1s comprise different gRNA sequences, and in some aspects, the reaction mixture comprises 2 to 10000 different RNP1s, 2 to 1000 different RNP1s, 2 to 100 different RNP1s, or 2 to 10 different RNP1s.
  • the blocked primer molecules include the sequence of any one of SEQ ID NOs: 14-1421.
  • the K d of the blocked primer molecules to the RNP2 is about 10 5 -fold greater, 10 6 -fold greater, 10 7 -fold greater, 10 8 -fold greater, 10 9 -fold greater, 10 10 -fold greater or more than the K d of unblocked primer molecules.
  • the reaction mixture further comprises a reporter moiety: wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule that is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2.
  • the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1; in some aspects, the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or optical signal; and/or in some aspects, the reporter moiety comprises a modified nucleoside or nucleotide including but not limited to locked nucleic acids (LNAs), peptide nucleic acids (PNAs), 2′-O-methyl (2′-O-Me) modified nucleosides, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bonds.
  • LNAs locked nucleic acids
  • PNAs peptide nucleic acids
  • 2′-O-methyl (2′-O-Me 2′-O-methyl
  • 2′-F 2′-fluoro (2′-F) modified nucleoside
  • PS phosphorothioate
  • the template molecules do not comprise a complement of a PAM sequence, and in some aspects, the template molecules comprise a complement of a PAM sequence. In some aspects, the template molecules are single-stranded. In some aspects, the template molecules are linear; in yet other aspects the template molecules are circularized.
  • At least one of the plurality of circular high Kd blocked nucleic acid molecules comprises a first region comprising a sequence specific to the second guide RNA and a second region comprising a nuclease-cleavable sequence; where at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant DNA sequence in the first region and a nuclease-cleavable DNA sequence in the second region; at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant RNA sequence in the first region and a nuclease-cleavable DNA and RNA sequence in the second region; at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant DNA sequence in the first region and a nuclease-cleavable DNA and RNA sequence in the second region; or at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant RNA sequence
  • the polymerase comprises strand displacement activity and/or 3′-to-5′ exonuclease activity, and in some aspects, the polymerase is Phi29 polymerase.
  • composition of matter comprising a circular high Kd blocked nucleic acid molecule comprising: a region recognized by a gRNA in an RNP complex; a region comprising a sequence cleavable by a nucleic acid-guided nuclease in the RNP complex; and wherein the circular high Kd blocked nucleic acid molecule cannot activate the RNP complex, and wherein the circular high Kd blocked nucleic molecules are high Kd in relation to binding to the RNP complex.
  • a further embodiment provides a method of unblocking a circular high Kd blocked nucleic acid molecule comprising the steps of: (a) providing a circular high Kd blocked nucleic acid molecule comprising: a first region recognized by a gRNA in an RNP complex; a second region comprising a sequence cleavable by a nucleic acid-guided nuclease in the RNP complex, wherein the circular high Kd blocked nucleic acid molecule cannot substantially activate the RNP complex; and (b) initiating cleavage of the second region by the nucleic acid-guided nuclease in the RNP complex, wherein the circular high Kd blocked nucleic acid molecule becomes a linear low Kd unblocked nucleic acid molecule, and wherein the circular high Kd blocked nucleic acid molecules are high Kd and linear low K d unblocked nucleic acid molecules are high K d and low K d in relation to binding the RNP complex.
  • a cascade assay method of detecting a target nucleic acid of interest in a sample comprising the steps of: (a) providing a reaction mixture comprising: (i) a first ribonucleoprotein (RNP) complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest; (ii) a second ribonucleoprotein (RNP2) complex comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid molecule; and (iii) a plurality of circular blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the circular blocked nucleic acid molecules cannot activate the RNP1 complex or the RNP2 complex; (b) contacting the reaction mixture with the sample under conditions that allow the target nucleic acid of interest in
  • the RNP complex (either RNP1 or RNP2) comprises a nucleic acid-guided nuclease selected from Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, or Cas13b, and in some aspects, the RNP complex comprises a nucleic acid-guided nuclease that is a Type V nucleic acid-guided nuclease or a Type VI nucleic acid-guided nuclease; the RNP complex comprises a nucleic acid-guided nuclease that exhibits both cis-cleavage and trans-cleavage activity; and/or the RNP complex comprises a nucleic acid-guided nuclease comprising a RuvC nuclease domain or a RuvC-like nuclease domain but lacks an HNH nuclease domain.
  • the circular high K d blocked nucleic acid molecule comprises a nuclease-resistant DNA sequence in the first region and a nuclease-cleavable DNA sequence in the second region;
  • the circular high K d blocked nucleic acid molecule comprises a nuclease-resistant RNA sequence in the first region and a nuclease-cleavable DNA and RNA sequence in the second region;
  • the circular high K d blocked nucleic acid molecule comprises a nuclease-resistant DNA sequence in the first region and a nuclease-cleavable DNA and RNA sequence in the second region;
  • the circular high K d blocked nucleic acid molecule comprises a nuclease-resistant RNA sequence in the first region and a nuclease-cleavable RNA sequence in the second region.
  • the circular high K d blocked nucleic acid molecule comprises 5′ and 3′ ends hybridized to each other and DNA, RNA, LNA or PNA bases having a high T m ; and in some aspects, the K d of the circular high K d blocked nucleic acid molecules to the RNP complex or RNP2 is about 10 5 -fold greater, 10 6 -fold greater, 10 7 -fold greater, 10 8 -fold greater, 10 9 -fold greater, 10 10 -fold greater or more than the K d of unblocked circular high K d blocked nucleic acid molecules.
  • the circular high K d blocked nucleic acid molecule comprises a modified nucleoside or nucleotide, including but not limited to a locked nucleic acid (LNA), a peptide nucleic acid (PNA), a 2′-O-methyl (2′-O-Me) modified nucleoside, a 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bond.
  • LNA locked nucleic acid
  • PNA peptide nucleic acid
  • PS phosphorothioate
  • the circular high K d blocked nucleic acid molecule is a single-stranded, double-stranded, or partially double-stranded molecule comprising one or more different combinations of DNA-DNA, DNA-RNA or RNA-RNA hybrid molecules.
  • the circular high K d blocked nucleic acid molecule is a circular high K d primer molecule.
  • the circular high K d blocked nucleic acid molecule does not comprise a PAM sequence or the circular high K d blocked nucleic acid molecule comprises a PAM sequence.
  • the compositions of matter or reaction further comprises a reporter moiety wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule that is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2.
  • the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1; in some aspects, the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or optical signal; and/or in some aspects, the reporter moiety comprises a modified nucleoside or nucleotide including but not limited to locked nucleic acids (LNAs), peptide nucleic acids (PNAs), 2′-O-methyl (2′-O-Me) modified nucleosides, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bonds.
  • LNAs locked nucleic acids
  • PNAs peptide nucleic acids
  • 2′-O-methyl (2′-O-Me 2′-O-methyl
  • 2′-F 2′-fluoro (2′-F) modified nucleoside
  • PS phosphorothioate
  • composition of matter comprising: (a) a first preassembled ribonucleoprotein complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA that is specific to a target nucleic acid of interest, wherein the first nucleic acid-guided nuclease exhibits cis-cleavage activity and trans-cleavage activity; (b) a second preassembled ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second guide RNA, wherein the second nucleic acid-guided nuclease exhibits cis-cleavage activity and trans-cleavage activity; and (c) a plurality of circular high K d blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the circular high K d blocked nucleic acid molecules are not recognized by the RNP1 or RNP2, and wherein the circular high K d blocked nu
  • composition of matter comprising: (a) a first preassembled ribonucleoprotein complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA that is specific to a target nucleic acid of interest, wherein the first nucleic acid-guided nuclease exhibits cis-cleavage activity and trans-cleavage activity; (b) a second preassembled ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second guide RNA, wherein the second nucleic acid-guided nuclease exhibits cis-cleavage activity and trans-cleavage activity; and (c) a plurality of engineered linear high K d blocked nucleic acid molecules comprising a first sequence complementary to the second gRNA, wherein the linear high K d blocked nucleic acid molecules are not recognized by the RNP1 and RNP2, and wherein the linear high K d
  • composition of matter comprising: (a) a first preassembled ribonucleoprotein complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA that is specific to a target nucleic acid of interest, wherein the first nucleic acid-guided nuclease exhibits cis-cleavage activity and trans-cleavage activity; (b) a second preassembled ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second guide RNA, wherein the second nucleic acid-guided nuclease exhibits cis-cleavage activity and trans-cleavage activity; and (c) a plurality of engineered high K d blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the high K d blocked nucleic acid molecules are not recognized by the RNP1 and RNP2, and wherein the high K d blocked nucle
  • the high K d blocked nucleic acid molecule comprises DNA, RNA, LNA or PNA bases having a high Tm; the 5′ and 3′ ends of the high K d blocked nucleic acid molecule comprise phosphorothioate bonds (PS); high K d blocked nucleic acid molecule comprises one or more different combinations of DNA-DNA, DNA-RNA or RNA-RNA hybrid molecules; and/or the high K d blocked nucleic acid molecule comprises a nucleic acid region comprising nanoparticles attached thereto, wherein the nanoparticles provide steric hindrance to internalization in RNP2 and block RNP2 activation until cleavage and removal of the nucleic acid region comprising the nanoparticles.
  • PS phosphorothioate bonds
  • the first and/or second nucleic acid-guided nuclease is a Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, Cas13b nuclease; in some aspects, the first nucleic acid-guided nuclease can is a different nucleic acid-guided nuclease than the second nucleic acid-guided nuclease; in some aspects, the first and/or second nucleic acid-guided nuclease is a Type V nucleic acid-guided nuclease or a Type VI nucleic acid-guided nuclease and/or in some aspects, the first and/or second nucleic acid-guided nuclease comprises a RuvC nuclease domain or a RuvC-like nuclease domain and lacks an HNH nucleas
  • composition of matter comprises about 1 fM to about 10 ⁇ M of the RNP1; and/or the composition of matter comprises about 1 fM to about 1 mM of the RNP2.
  • composition of matter comprises at least two different RNP1 complex species, wherein different RNP1s comprise different gRNA sequences; and in some aspects the composition comprises 2 to 10000 different RNP1s, 2 to 1000 different RNP1s, 2 to 100 different RNP1s, or 2 to 10 different RNP1s.
  • the RNP2 recognizes a PAM sequence, and in other aspects the RNP2 complex does not recognize a PAM sequence.
  • the composition of matter further comprises a reporter moiety, wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule that is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2.
  • the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1; in some aspects, the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or optical signal; and/or in some aspects, the reporter moiety comprises a modified nucleoside or nucleotide including but not limited to locked nucleic acids (LNAs), peptide nucleic acids (PNAs), 2′-O-methyl (2′-O-Me) modified nucleosides, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bonds.
  • LNAs locked nucleic acids
  • PNAs peptide nucleic acids
  • 2′-O-methyl (2′-O-Me 2′-O-methyl
  • 2′-F 2′-fluoro (2′-F) modified nucleoside
  • PS phosphorothioate
  • the high Kd blocked nucleic acid molecule is a high Kd blocked primer molecule.
  • the linear high K d blocked nucleic acid molecule is converted to a linear low K d blocked nucleic acid molecule upon trans-cleavage by RNP1 and/or RNP2.
  • the K d of the blocked nucleic acid molecules to the RNP2 is about 10 5 -fold greater, 10 6 -fold greater, 10 7 -fold greater, 10 8 -fold greater, 10 9 -fold greater, 10 10 -fold greater or more than the K d of unblocked nucleic acid molecules.
  • At least one of the plurality of circular high Kd blocked nucleic acid molecules comprises a first region comprising a sequence specific to the second guide RNA and a second region comprising a nuclease-cleavable sequence; where at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant DNA sequence in the first region and a nuclease-cleavable DNA sequence in the second region; at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant RNA sequence in the first region and a nuclease-cleavable DNA and RNA sequence in the second region; at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant DNA sequence in the first region and a nuclease-cleavable DNA and RNA sequence in the second region; or at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant DNA sequence in the first region and a nuclease-
  • the linear high K d nucleic acid molecules comprise a structure represented by any one of Formulas I-IV, where Formulas I-IV comprise in the 5′-to-3′ direction:
  • At least one of the linear blocked nucleic acid molecules include the sequence of any one of SEQ ID NOs: 14-1421.
  • a method for syndromic testing comprising: (a) providing a reaction mixture comprising: (i) a plurality of first ribonucleoprotein complexes (RNP1s), each RNP1 comprising a nucleic acid-guided nuclease exhibiting both cis-cleavage and trans-cleavage activity and a first guide RNA (gRNA), wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the reaction mixture comprises at least two different RNP1s, wherein different RNP1s comprise different first gRNAs; (ii) a second ribonucleoprotein complex (RNP2), wherein the RNP2 comprises a second nucleic acid-guided nuclease and a second gRNA that does not recognize any of the target nucleic acids of interest; and (iii) a plurality of blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the
  • the first and/or second nucleic acid-guided nuclease is a Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, Cas13b nuclease; in some aspects, the first nucleic acid-guided nuclease can is a different nucleic acid-guided nuclease than the second nucleic acid-guided nuclease; in some aspects, the first and/or second nucleic acid-guided nuclease is a Type V nucleic acid-guided nuclease or a Type VI nucleic acid-guided nuclease and/or in some aspects, the first and/or second nucleic acid-guided nuclease comprises a RuvC nuclease domain or a RuvC-like nuclease domain and lacks an HNH nu
  • reaction mixture comprises about 1 fM to about 10 ⁇ M of the RNP1; and/or the reaction mixture comprises about 1 fM to about 1 mM of the RNP2.
  • reaction mixture comprises at least two different RNP1 complex species, wherein different RNP1s comprise different gRNA sequences; and in some aspects the composition comprises 2 to 10000 different RNP1s, 2 to 1000 different RNP1s, 2 to 100 different RNP1s, or 2 to 10 different RNP1s.
  • the K d of the plurality of blocked nucleic acid molecules to the RNP2 is about 10 5 -fold greater, 10 6 -fold greater, 10 7 -fold greater, 10 8 -fold greater, 10 9 -fold greater, 10 10 -fold greater or more than the K d of unblocked nucleic acid molecules.
  • the target nucleic acid of interest is of bacterial, viral, fungal, or mammalian origin
  • the sample may include peripheral blood, serum, plasma, ascites, urine, cerebrospinal fluid (CSF), sputum, saliva, bone marrow, synovial fluid, aqueous humor, amniotic fluid, cerumen, breast milk, broncheoalveolar lavage fluid, semen, prostatic fluid, cowper's fluid or pre-ejaculatory fluid, sweat, fecal matter, hair, tears, cyst fluid, pleural and peritoneal fluid, pericardial fluid, lymph, chyme, chyle, bile, interstitial fluid, menses, pus, sebum, vomit, vaginal secretions, mucosal secretion, stool water, pancreatic juice, lavage fluids from sinus cavities, bronchopulmonary aspirates, blastocyl cavity fluid, and/or umbilical cord blood.
  • CSF cerebrospinal fluid
  • saliva aque
  • the reaction mixture further comprises a reporter moiety: wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule that is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2.
  • the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1; in some aspects, the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or optical signal; and/or in some aspects, the reporter moiety comprises a modified nucleoside or nucleotide including but not limited to locked nucleic acids (LNAs), peptide nucleic acids (PNAs), 2′-O-methyl (2′-O-Me) modified nucleosides, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bonds. In some aspects the detectable signal is produced within about 1-10 minutes upon the target nucleic acid of interest activating RNP1.
  • LNAs locked nucleic acids
  • PNAs peptide nucleic acids
  • PS phosphorothioate
  • the blocked nucleic acid molecules comprise a PAM sequence and in other aspects, the blocked nucleic acid molecules do not comprise a PAM sequence.
  • the blocked nucleic acid molecules are linear and in some aspects, the blocked nucleic acids are circular and in yet other aspects, the blocked nucleic acid molecules are a mixture of circular and linear blocked nucleic acid molecules.
  • the blocked nucleic acid molecules are blocked primer molecules and wherein the reaction mixture further comprises a polymerase and nucleotides.
  • the syndromic testing is for any two or more of common flu (e.g., influenza A, influenza A/H1, influenza A/H3, influenza A/H1-2009, and influenza B); one of the multiple strains of respiratory syncytial virus (RSV), such as RSV-A and RSV-B; at least one variant of SARS-CoV-2 (e.g., B.1.1.7, B.1.351, P.1, B.1.617.2, BA.1, BA.2, BA.2.12.1, BA.4, and BA.5); and at least one of other pathogens of interest (e.g., parainfluenza virus 1-4, human metapneumovirus, human rhinovirus, human enterovirus, adenovirus, coronavirus HKU1, coronavirus NL63, coronavirus 229E, coronavirus OC43, MERS).
  • RSV respiratory syncytial virus
  • a method of detecting a target nucleic acid of interest in a sample comprising the steps of: providing a reaction mixture comprising a first RNP complex comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA), wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest; and a second RNP complex comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; and contacting the reaction mixture with the sample under conditions that allow the target nucleic acid of interest in the sample to bind to the first gRNA, wherein upon binding of the target nucleic acid of interest, the first RNP complex becomes active which catalyzes activation of the second RNP complex via one or more blocked nucleic acids to produce a detectable signal from a reporter moiety.
  • gRNA guide RNA
  • a further embodiment provides a modular cascade assay comprising: a first nucleic acid-guided nuclease, wherein the first nucleic acid-guided nuclease will form a first ribonucleoprotein complex with a first gRNA that is complementary to a target nucleic acid of interest; a second RNP2 complex comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to a target nucleic acid of interest; and a plurality of blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the blocked nucleic acid molecules cannot activate the RNP1 complex or the RNP2 complex; wherein by changing the sequence of the first gRNA, the modular cascade assay is changed to detect different target nucleic acids of interest.
  • FIG. 1 A is an overview of a prior art assay where target nucleic acids of interest from a sample must be amplified before performing a detection assay.
  • FIG. 1 B is an overview of the general principles underlying the nucleic acid-guided nuclease cascade assay described in detail herein where target nucleic acids of interest from a sample do not need to be amplified before detection.
  • FIG. 2 A is a diagram showing the sequence of steps in an exemplary cascade assay utilizing blocked nucleic acids.
  • FIG. 2 B is a diagram showing an exemplary blocked nucleic acid molecule and a method for unblocking the blocked nucleic acid molecules of the disclosure.
  • FIG. 2 C shows schematics of several exemplary blocked nucleic acid molecules containing the structure of Formula I, as described herein.
  • FIG. 2 D shows schematics of several exemplary blocked nucleic acid molecules containing the structure of Formula II, as described herein.
  • FIG. 2 E shows schematics of several exemplary blocked nucleic acid molecules containing the structure of Formula III, as described herein.
  • FIG. 2 F shows schematics of several exemplary blocked nucleic acid molecules containing the structure of Formula IV, as described herein.
  • FIG. 2 G shows an exemplary single-stranded blocked nucleic acid molecule with a design able to block R-loop formation with an RNP complex, thereby blocking activation of the trans-nuclease activity of an RNP complex (i.e., RNP2).
  • RNP2 an RNP complex
  • FIG. 2 H shows schematics of exemplary circularized blocked nucleic acid molecules.
  • FIG. 3 A is a diagram showing the sequence of steps in an exemplary cascade assay involving circular blocked primer molecules and linear template molecules.
  • FIG. 3 B is a diagram showing the sequence of steps in an exemplary cascade assay involving circular blocked primer molecules and circular template molecules.
  • FIG. 4 illustrates three embodiments of reporter moieties.
  • FIG. 5 A shows a lateral flow assay that can be used to detect the cleavage and separation of a signal from a reporter moiety.
  • FIG. 5 B shows a schematic of a lateral flow assay device illustrating the results of an exemplary syndromic test.
  • FIG. 6 shows a titered quantification of a synthesized nucleocapsid gene (N-gene) using the nucleic acid detection methods described herein. As described in Example VI, a cascade assay was initiated using the detection methods described in Examples II-V above.
  • FIG. 7 shows titered quantification of an inactivated SARS-CoV-2 virus using the nucleic acid detection methods described in Examples II-V above.
  • FIG. 8 shows titered quantification of DNA from Methicillin-resistant Staphylococcus (MRSA) using the nucleic acid detection methods described in Examples II-V.
  • FIG. 9 shows titered quantification of DNA from Methicillin-resistant Staphylococcus (MRSA) using the nucleic acid detection methods described in Examples II-V.
  • FIG. 10 shows the detection of 3 copies of a molecule of DNA from Methicillin-resistant Staphylococcus (MRSA) using Molecule C5 as the blocked nucleic acid molecule.
  • MRSA Methicillin-resistant Staphylococcus
  • FIG. 11 shows the detection of 3 copies of a molecule of DNA from Methicillin-resistant Staphylococcus (MRSA) using Molecule C6 as the blocked nucleic acid molecule.
  • MRSA Methicillin-resistant Staphylococcus
  • FIG. 12 shows the detection of 3 copies of a molecule of DNA from Methicillin-resistant Staphylococcus (MRSA) using Molecule C7 as the blocked nucleic acid molecule.
  • MRSA Methicillin-resistant Staphylococcus
  • FIG. 13 shows the detection of 3 copies of a molecule of DNA from Methicillin-resistant Staphylococcus (MRSA) using Molecule C8 as the blocked nucleic acid molecule.
  • MRSA Methicillin-resistant Staphylococcus
  • FIG. 14 shows the detection of 3 copies of a molecule of DNA from Methicillin-resistant Staphylococcus (MRSA) using Molecule C9 as the blocked nucleic acid molecule.
  • MRSA Methicillin-resistant Staphylococcus
  • nucleic acid sequences described herein are given, when read from left to right, in the 5′ to 3′ direction. Nucleic acid sequences may be provided as DNA, as RNA, or a combination of DNA and RNA (e.g., a chimeric nucleic acid).
  • the term “about,” as applied to one or more values of interest, refers to a value that falls within 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, or less in either direction (greater than or less than) of a stated reference value, unless otherwise stated or otherwise evident from the context (except where such number would exceed 100% of a possible value).
  • binding affinity or “dissociation constant” or “K d ” refer to the tendency of a molecule to bind (covalently or non-covalently) to a different molecule.
  • K d binding affinity
  • a high K d (which in the context of the present disclosure refers to blocked nucleic acid molecules or blocked primer molecules binding to RNP2) indicates the presence of more unbound molecules
  • a low K d (which in the context of the present disclosure refers to unblocked nucleic acid molecules or unblocked primer molecules binding to RNP2) indicates the presence of more bound molecules.
  • aow K d values are in a range from about 100 fM to about 1 aM or lower (e.g., 100 zM) and high K d values are in the range of 100 nM-100 ⁇ M (10 mM) and thus are about 10 5 - to 10 10 -fold or higher as compared to low K d values.
  • binding domain refers to a region on a protein, DNA, or RNA, to which specific molecules and/or ions (ligands) may form a covalent or non-covalent bond.
  • a polynucleotide sequence present on a nucleic acid molecule e.g., a primer binding domain
  • a binding domain for a different nucleic acid molecule e.g., an unblocked primer nucleic acid molecule.
  • Characteristics of binding sites are chemical specificity, a measure of the types of ligands that will bond, and affinity, which is a measure of the strength of the chemical bond.
  • blocked nucleic acid molecule refers to nucleic acid molecules that cannot bind to the first or second RNP complex to activate cis- or trans-cleavage.
  • Unblocked nucleic acid molecule refers to a formerly blocked nucleic acid molecule that can bind to the second RNP complex (RNP2) to activate trans-cleavage of additional blocked nucleic acid molecules.
  • CRISPR nuclease or “CRISPR nuclease” or “nucleic acid-guided nuclease” refer to a CRISPR-associated protein that is an RNA-guided endonuclease suitable for assembly with a sequence-specific gRNA to form a ribonucleoprotein (RNP) complex.
  • RNP ribonucleoprotein
  • cis-cleavage As used herein, the terms “cis-cleavage”, “cis-endonuclease activity”, “cis-mediated endonuclease activity”, “cis-nuclease activity”, “cis-mediated nuclease activity”, and variations thereof refer to sequence-specific cleavage of a target nucleic acid of interest, including an unblocked nucleic acid molecule or synthesized activating molecule, by a nucleic acid-guided nuclease in an RNP complex. Cis-cleavage is a single turn-over cleavage event in that only one substrate molecule is cleaved per event.
  • nucleic acid refers to Watson-Crick base pairing between nucleotides and specifically refers to nucleotides hydrogen-bonded to one another with thymine or uracil residues linked to adenine residues by two hydrogen bonds and cytosine and guanine residues linked by three hydrogen bonds.
  • a nucleic acid includes a nucleotide sequence described as having a “percent complementarity” or “percent homology” to a specified second nucleotide sequence.
  • a nucleotide sequence may have 80%, 90%, or 100% complementarity to a specified second nucleotide sequence, indicating that 8 of 10, 9 of 10, or 10 of 10 nucleotides of a sequence are complementary to the specified second nucleotide sequence.
  • the nucleotide sequence 3′-TCGA-5′ is 100% complementary to the nucleotide sequence 5′-AGCT-3′; and the nucleotide sequence 3′-TCGATCGATCGA-5′ [SEQ ID NO: 1] is 100% complementary to a region of the nucleotide sequence 5′-GCTAGCTAGC-3′ [SEQ ID NO: 2].
  • contacting refers to placement of two moieties in direct physical association, including in solid or liquid form. Contacting can occur in vitro with isolated cells (for example in a tissue culture dish or other vessel) or in vivo by administering an agent to a subject.
  • control is a reference standard of a known value or range of values.
  • guide nucleic acid or “guide RNA” or “gRNA” refer to a polynucleotide comprising 1) a crRNA region or guide sequence capable of hybridizing to the target strand of a target nucleic acid of interest, and 2) a scaffold sequence capable of interacting or complexing with a nucleic acid-guided nuclease.
  • the crRNA region of the gRNA is a customizable component that enables specificity in every nucleic acid-guided nuclease reaction.
  • a gRNA can include any polynucleotide sequence having sufficient complementarity with a target nucleic acid of interest to hybridize with the target nucleic acid of interest and to direct sequence-specific binding of a ribonucleoprotein (RNP) complex containing the gRNA and nucleic acid-guided nuclease to the target nucleic acid.
  • Target nucleic acids of interest may include a protospacer adjacent motif (PAM), and, following gRNA binding, the nucleic acid-guided nuclease induces a double-stranded break either inside or outside the protospacer region on the target nucleic acid of interest, including on an unblocked nucleic acid molecule or synthesized activating molecule.
  • PAM protospacer adjacent motif
  • a gRNA may contain a spacer sequence including a plurality of bases complementary to a protospacer sequence in the target nucleic acid.
  • a spacer can contain about 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, or more bases.
  • the gRNA spacer may be 50%, 60%, 75%, 80%, 85%, 90%, 95%, 97.5%, 98%, 99%, or more complementary to its corresponding target nucleic acid of interest.
  • Optimal alignment may be determined with the use of any suitable algorithm for aligning sequences.
  • a guide RNA may be from about 20 nucleotides to about 300 nucleotides long. Guide RNAs may be produced synthetically or generated from a DNA template.
  • Modified refers to a changed state or structure of a molecule. Molecules may be modified in many ways including chemically, structurally, and functionally.
  • a nucleic acid molecule for example, a blocked nucleic acid molecule
  • a modified protein e.g., a nucleic acid-guided nuclease
  • percent sequence identity refers to percent (%) sequence identity with respect to a reference polynucleotide or polypeptide sequence following alignment by standard techniques. Alignment for purposes of determining percent sequence identity can be achieved in various ways that are within the capabilities of one of skill in the art, for example, using publicly available computer software such as BLAST, BLAST-2, PSI-BLAST, or Megalign software. In some embodiments, the software is MUSCLE (Edgar, Nucleic Acids Res., 32(5):1792-1797 (2004)). Those skilled in the art can determine appropriate parameters for aligning sequences, including any algorithms needed to achieve maximal alignment over the full length of the sequences being compared. For example, in embodiments, percent sequence identity values are generated using the sequence comparison computer program BLAST (Altschul et al., J. Mol. Biol., 215:403-410 (1990)).
  • the terms “preassembled ribonucleoprotein complex”, “ribonucleoprotein complex”, “RNP complex”, or “RNP” refer to a complex containing a guide RNA (gRNA) and a nucleic acid-guided nuclease, where the gRNA is integrated with the nucleic acid-guided nuclease.
  • the gRNA which includes a sequence complementary to a target nucleic acid of interest, guides the RNP to the target nucleic acid of interest and hybridizes to it.
  • the hybridized target nucleic acid-gRNA units are cleaved by the nucleic acid-guided nuclease.
  • a first ribonucleoprotein complex includes a first guide RNA (gRNA) specific to a nucleic acid target nucleic acid of interest, and a first nucleic acid-guided nuclease, such as, for example, cas12a or cas14a for a DNA target nucleic acid, or cas13a for an RNA target nucleic acid.
  • gRNA first guide RNA
  • a second ribonucleoprotein complex (RNP2) for signal amplification includes a second guide RNA specific to an unblocked nucleic acid or synthesized activating molecule, and a second nucleic acid-guided nuclease, which may be different from or the same as the first nucleic acid-guided nuclease.
  • Proteins may or may not be made up entirely of amino acids.
  • sample refers to tissues; cells or component parts; body fluids, including but not limited to peripheral blood, serum, plasma, ascites, urine, cerebrospinal fluid (CSF), sputum, saliva, bone marrow, synovial fluid, aqueous humor, amniotic fluid, cerumen, breast milk, broncheoalveolar lavage fluid, semen, prostatic fluid, cowper's fluid or pre-ejaculatory fluid, sweat, fecal matter, hair, tears, cyst fluid, pleural and peritoneal fluid, pericardial fluid, lymph, chyme, chyle, bile, interstitial fluid, menses, pus, sebum, vomit, vaginal secretions, mucosal secretion, stool water, pancreatic juice, lavage fluids from sinus cavities, bronchopulmonary aspirates, blastocyl cavity fluid, and umbilical cord blood; food; agricultural products; pharmaceuticals; cosmetics, nutriceuticals; personal care
  • target DNA sequence refers to any locus that is recognized by a gRNA sequence in vitro or in vivo.
  • the “target strand” of a target nucleic acid of interest is the strand of the double-stranded target nucleic acid that is complementary to a gRNA.
  • the spacer sequence of a gRNA may be 50%, 60%, 75%, 80%, 85%, 90%, 95%, 97.5%, 98%, 99% or more complementary to the target nucleic acid of interest.
  • Optimal alignment can be determined with the use of any suitable algorithm for aligning sequences.
  • a target nucleic acid of interest can include any polynucleotide, such as DNA (ssDNA or dsDNA) or RNA polynucleotides.
  • a target nucleic acid of interest may be located in the nucleus or cytoplasm of a cell such as, for example, within an organelle of a eukaryotic cell, such as a mitochondrion or a chloroplast, or it can be exogenous to a host cell, such as a eukaryotic cell or a prokaryotic cell.
  • the target nucleic acid of interest may be present in a sample, such as a biological or environmental sample, and it can be a viral nucleic acid molecule, a bacterial nucleic acid molecule, a fungal nucleic acid molecule, or a polynucleotide of another organism, such as a coding or a non-coding sequence, and it may include single-stranded or double-stranded DNA molecules, such as a cDNA or genomic DNA, or RNA molecules, such as mRNA, tRNA, and rRNA.
  • the target nucleic acid may be associated with a protospacer adjacent motif (PAM) sequence, which may include a 2-5 base pair sequence adjacent to the protospacer. In some embodiments 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or more target nucleic acids can be detected by the disclosed method.
  • PAM protospacer adjacent motif
  • trans-cleavage refers to indiscriminate, non-sequence-specific cleavage of a nucleic acid molecule by an endonuclease (such as by a Cas12, Cas13, and Cas14) which is triggered by cis-(sequence-specific) cleavage.
  • Trans-cleavage is a “multiple turn-over” event, in that more than one substrate molecule is cleaved after initiation by a single turn-over cis-cleavage event.
  • Type V CRISPR/Cas nucleic acid-guided nucleases are a subtype of Class 2 CRISPR/Cas effector nucleases such as, but not limited to, engineered Cas12a, Cas12b, Cas12c, C2c4, C2c8, C2c5, C2c10, C2c9, CasX (Cas12e), CasY (Cas12d), Cas 13a nucleases or naturally-occurring proteins, such as a Cas12a isolated from, for example, Francisella tularensis subsp.
  • Class 2 CRISPR/Cas effector nucleases such as, but not limited to, engineered Cas12a, Cas12b, Cas12c, C2c4, C2c8, C2c5, C2c10, C2c9, CasX (Cas12e), CasY (Cas12d), Cas 13a nucleases or naturally-occurring proteins, such as a
  • novicida (Gene ID: 60806594), Candidatus Methanoplasma termitum (Gene ID: 24818655), Candidatus Methanomethylophilus alvus (Gene ID: 15139718), and [ Eubacterium ] eligens ATCC 27750 (Gene ID: 41356122), and an artificial polypeptide, such as a chimeric protein.
  • variant refers to a polypeptide or polynucleotide that differs from a reference polypeptide or polynucleotide but retains essential properties.
  • a typical variant of a polypeptide differs in amino acid sequence from another reference polypeptide. Generally, differences are limited so that the sequences of the reference polypeptide and the variant are closely similar overall and, in many if not most regions, identical.
  • a variant and reference polypeptide may differ in amino acid sequence by one or more modifications (e.g., substitutions, additions, and/or deletions).
  • a variant of a polypeptide may be a conservatively modified variant.
  • a substituted or inserted amino acid residue may or may not be one encoded by the genetic code (e.g., a non-natural amino acid).
  • a variant of a polypeptide may be naturally occurring, such as an allelic variant, or it may be a variant that is not known to occur naturally.
  • Variants include modifications-including chemical modifications—to one or more amino acids that do not involve amino acid substitutions, additions or deletions.
  • a “vector” is any of a variety of nucleic acids that comprise a desired sequence or sequences to be delivered to and/or expressed in a cell.
  • Vectors are typically composed of DNA, although RNA vectors are also available.
  • Vectors include, but are not limited to, plasmids, fosmids, phagemids, virus genomes, synthetic chromosomes, and the like.
  • the present disclosure provides compositions of matter, methods, and cascade assays for detecting nucleic acids.
  • the cascade assays described herein comprise first and second ribonucleoprotein complexes and either blocked nucleic acid molecules or blocked primer molecules.
  • the blocked nucleic acid molecules or blocked primer molecules keep the second ribonucleoprotein complexes “locked” unless and until a target nucleic acid of interest activates the first ribonucleoprotein complex.
  • the methods comprise the steps of providing cascade assay components, contacting the cascade assay components with a sample, and detecting a signal that is generated only when a target nucleic acid of interest is present in the sample ids.
  • Nucleic acid-guided nucleases such as the Cas12a endonuclease, can be utilized as diagnostic tools for the detection of target nucleic acids of interest associated with diseases.
  • Cas12a endonuclease can be utilized as diagnostic tools for the detection of target nucleic acids of interest associated with diseases.
  • currently available state-of-the-art CRISPR Cas12a-based nucleic acid detection relies on DNA amplification before using Cas12a enzymes, which significantly hinders the ability to perform rapid point-of-care testing.
  • cis-cleavage target-specific activation of Cas12a enzymes
  • cis-cleavage is a single turnover event in which the number of activated enzyme complexes is, at most, equal to the number of copies of the target nucleic acids of interest in the sample.
  • RNP ribonucleoprotein
  • the RNP complex initiates rapid non-specific trans-endonuclease activity, which is a multi-turnover event.
  • Some currently available methods use trans-cleavage to cleave fluorescent reporters that are initially quenched to generate a signal, thereby indicating the presence of a cis-cleavage event—the target nucleic acid.
  • the K cat of activated Cas12a complex is 17/sec and 3/sec for dsDNA and ssDNA targets, respectively. Therefore, for less than 10,000 target copies, the number of reporters cleaved is not sufficient to generate a signal in less than 60 minutes.
  • all current technologies rely on DNA amplification to first generate billions of target copies to activate a proportional number of ribonucleoprotein complexes to generate a detectable signal in 30-60 minutes.
  • the present disclosure describes a nucleic acid-guided nuclease cascade assay that can detect one or more target nucleic acids of interest (e.g., DNA, RNA and/or cDNA) at attamolar (aM) (or lower) limits in about 10 minutes or less without the need for amplifying the target nucleic acid(s) of interest, thereby avoiding the drawbacks of multiplex amplification, such as primer-dimerization.
  • target nucleic acids of interest e.g., DNA, RNA and/or cDNA
  • aM attamolar
  • the nucleic acid-guided nuclease cascade assays utilize signal amplification mechanisms comprising various components including nucleic acid-guided nucleases, guide RNAs (gRNAs), blocked nucleic acid molecules or blocked primer molecules, reporter moieties, and, in some embodiments, polymerases.
  • gRNAs guide RNAs
  • a particularly advantageous feature of the cascade assay is that, with the exception of the gRNA (gRNA1) in RNP1, the cascade assay components stay the same no matter what target nucleic acid(s) of interest are being detected. In this sense, the cascade assay is modular.
  • FIG. 1 A provides a simplified diagram demonstrating a prior art method ( 1 ) of a nucleic acid-guided nuclease detection assay where target nucleic acids of interest from a sample must be amplified in order to be detected.
  • the target nucleic acid of interest 2
  • the detection assay is initiated (step 2) when the target nucleic acid of interest ( 4 ) is combined with and binds to a pre-assembled ribonucleoprotein complex ( 6 ), which is part of a reaction mix.
  • the ribonucleoprotein complex ( 6 ) comprises a guide RNA (gRNA) and a nucleic acid-guided nuclease, where the gRNA is integrated with the nucleic acid-guided nuclease.
  • the gRNA which includes a sequence complementary to the target nucleic acid of interest, guides the RNP complex to the target nucleic acid of interest and hybridizes to it thereby activating the ribonucleoprotein complex ( 6 ).
  • the nucleic acid-guided nuclease exhibits (i.e., possesses) both cis- and trans-cleavage activity, where trans-cleavage activity is initiated by cis-cleavage activity.
  • Cis-cleavage activity occurs as the target nucleic acid of interest binds to the gRNA and is cleaved by the nucleic acid guided nuclease (i.e., activation). Once cis-cleavage of the target nucleic acid of interest is initiated, trans-cleavage activity is triggered, where trans-cleavage activity is indiscriminate, non-sequence-specific cleavage of nucleic acid molecules in the sample and is a multi-turnover event.
  • the trans-cleavage activity triggers activation of reporter moieties ( 12 ) that are present in the reaction mix.
  • the reporter moieties ( 12 ) may be a synthetic molecule linked or conjugated to a quencher ( 14 ) and a fluorophore ( 16 ) such as, for example, a probe with a dye label (e.g., FAM or FITC) on the 5′ end and a quencher on the 3′ end.
  • the quencher ( 14 ) and fluorophore ( 16 ) typically are about 20-30 bases apart or less for effective quenching via fluorescence resonance energy transfer (FRET). Reporter moieties ( 12 ) are described in greater detail below.
  • nucleic acid-guided nuclease detection assays rely on DNA amplification, which, in addition to issues with multiplexing, significantly hinders the ability to perform rapid point-of-care testing.
  • the lack of rapidity is due to cis-cleavage of a target nucleic acid of interest being a single turnover event in which the number of activated enzyme complexes is, at most, equal to the number of copies of the target nucleic acids of interest in the sample.
  • the K cat of, e.g., activated Cas12a complex is 17/sec and 3/sec for dsDNA and ssDNA targets, respectively. Therefore, for less than 10,000 target copies, the number of reporters cleaved is not sufficient to generate a signal in less than 30-60 minutes.
  • FIG. 1 B provides a simplified diagram demonstrating a method ( 100 ) of a nucleic acid-guided nuclease cascade assay.
  • the cascade assay is initiated when the target nucleic acid of interest ( 104 ) binds to and activates a first pre-assembled ribonucleoprotein complex (RNP1) ( 102 ).
  • RNP1 pre-assembled ribonucleoprotein complex
  • a ribonucleoprotein complex comprises a guide RNA (gRNA) and a nucleic acid-guided nuclease, where the gRNA is integrated with the nucleic acid-guided nuclease.
  • the gRNA which includes a sequence complementary to the target nucleic acid of interest, guides an RNP complex to the target nucleic acid of interest and hybridizes to it.
  • preassembled RNP complexes are employed in the reaction mix—as opposed to separate nucleic acid-guided nucleases and gRNAs—to facilitate rapid detection
  • “Activation” of RNP1 refers to activating trans-cleavage activity of the nucleic acid-guided nuclease in RNP1 ( 106 ) by first initiating cis-cleavage where the target nucleic acid of interest is cut by the nucleic acid-guided nuclease.
  • the cis-cleavage activity initiates trans-cleavage activity (i.e., multi-turnover activity) of the nucleic acid-guided nuclease, where trans-cleavage is indiscriminate, non-sequence-specific cutting of nucleic acid molecules by the nucleic acid-guided nuclease of RNP1 ( 102 ).
  • RNP2s blocked ribonucleoprotein complexes
  • Each newly activated RNP2 ( 110 ) activates more RNP2 ( 108 ⁇ 110 ), which in turn cleave reporter moieties ( 112 ).
  • the reporter moieties ( 112 ) may be a synthetic molecule linked or conjugated to a quencher ( 114 ) and a fluorophore ( 116 ) such as, for example, a probe with a dye label (e.g., FAM or FITC) on the 5′ end and a quencher on the 3′ end.
  • a dye label e.g., FAM or FITC
  • the quencher ( 114 ) and fluorophore ( 116 ) can be about 20-30 bases apart or less for effective quenching via fluorescence resonance energy transfer (FRET). Reporter moieties also are described in greater detail below. As more RNP2s are activated ( 108 ⁇ 110 ), more trans-cleavage activity is activated and more reporter moieties are activated (where here, “activated” means unquenched); thus, the binding of the target nucleic acid of interest ( 104 ) to RNP1 ( 102 ) initiates what becomes a cascade of signal production ( 120 ), which increases exponentially.
  • the cascade assay thus comprises a single turnover event that triggers a multi-turnover event that then triggers another multi-turnover event.
  • the reporter moieties ( 112 ) may be provided as molecules that are separate from the other components of the nucleic acid-guided nuclease cascade assay, or the reporter moieties may be covalently or non-covalently linked to the blocked nucleic acid molecules or synthesized activating molecules (i.e., the target molecules for the RNP2).
  • the reporter moieties may be covalently or non-covalently linked to the blocked nucleic acid molecules or synthesized activating molecules (i.e., the target molecules for the RNP2).
  • the target nucleic acid of interest may be a DNA, RNA, or cDNA molecule.
  • Target nucleic acids of interest may be isolated from a sample or organism by standard laboratory techniques or may be synthesized by standard laboratory techniques (e.g., RT-PCR).
  • the target nucleic acids of interest are identified in a sample, such as a biological sample from a subject or an environmental sample (e.g., water or soil).
  • a biological sample include blood, serum, plasma, saliva, mucus, a nasal swab, a buccal swab, a cell, a cell culture, and tissue.
  • the source of the sample could be any mammal, such as, but not limited to, a human, primate, monkey, cat, dog, mouse, pig, cow, horse, sheep, and bat. Samples may also be obtained from any other source, such as air, water, soil, surfaces, food, beverages, nutraceuticals, clinical sites or products, industrial sites and products, cosmetics, personal care products, pharmaceuticals, medical devices, agricultural equipment and sites, and commercial samples.
  • the target nucleic acid of interest is from an infectious agent (e.g., a bacteria, protozoan, insect, worm, virus, or fungus).
  • the target nucleic acid of interest could be one or more nucleic acid molecules from bacteria, such as Bordetella parapertussis, Bordetella pertussis, Chlamydia pneumoniae, Legionella pneumophila, Mycoplasma pneumoniae, Acinetobacter calcoaceticus - baumannii complex, Bacteroides fragilis, Enterobacter cloacae complex, Escherichia coli, Klebsiella aerogenes, Klebsiella oxytoca, Klebsiella pneumoniae group, Moraxella catarrhalis, Proteus spp., Salmonella enterica, Serratia marcescens, Haemophilus influenzae, Neisseria meningitidis, Pseudomonas aeruginosa,
  • the target nucleic acid of interest could be one or more nucleic acid molecules from a virus, such as adenovirus, coronavirus HKU1, coronavirus NL63, coronavirus 229E, coronavirus OC43, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), human metapneumovirus, human rhinovirus, enterovirus, influenza A, influenza A/H1, influenza A/H3, influenza A/H1-2009, influenza B, parainfluenza virus 1, parainfluenza virus 2, parainfluenza virus 3, parainfluenza virus 4, respiratory syncytial virus, herpes simplex virus 1, herpes simplex virus 2, human immunodeficiency virus (HIV), human papillomavirus, hepatitis A virus (HAV), hepatitis B virus (HBV), hepatitis C virus (HCV), and/or human parvovirus B19 (B19V).
  • a virus such as adenovirus, coronavirus H
  • the target nucleic acid of interest could be one or more nucleic acid molecules from a fungus, such as Candida albicans, Candida auris, Candida glabrata, Candida krusei, Candida parapsilosis, Candida tropicalis, Cryptococcus neoformans , and/or Cryptococcus gattii .
  • the target nucleic acid of interest could be one or more nucleic acid molecules from a protozoan, such as Trichomonas vaginalis .
  • other target nucleic acids of interest may be for non-infectious conditions, e.g., to be used for genotyping. Other target nucleic acids of interest and samples are described herein.
  • the cascade assays described herein are particularly well-suited for syndromic testing.
  • Syndromic testing allows simultaneous testing for multiple causative agents that cause similar symptoms.
  • Syndromic testing allows rapid triage of patients, such as those needing emergency care, those amenable to treatment with pharmaceutical agents, those needing to be quarantined, etc.
  • syndrome testing multiple target nucleic acids of interest are pooled into a single reaction, and this process may be repeated in multiple, separate reactions. A positive result in one of the reactions indicates that one of the target nucleic acids of interest in that pool is present. Pools of two to 10,000 target nucleic acids of interest may be employed, e.g., 2-1000, 2-100, 2-50, or 2-10. Further testing may be used to identify the specific member of the pool, if warranted. Syndromic testing allows the rapid triage of patients with the ability to focus further care rapidly.
  • target nucleic acid of interest may be DNA (and in fact it is specifically contemplated that the target nucleic acid of interest may be RNA), it is understood by those in the field that a reverse transcription step to convert target RNA to cDNA may be performed prior to or while contacting the biological sample with the composition.
  • the cascade assays comprise nucleic acid-guided nucleases in the reaction mix, either provided as a protein, a coding sequence for the protein, or in a ribonucleoprotein (RNP) complex.
  • the one or more nucleic acid-guided nucleases in the reaction mix may be, for example, a Cas endonuclease. Any nucleic acid-guided nuclease having both cis- and trans-endonuclease activity may be employed, and the same nucleic acid-guided nuclease may be used for both RNPs or different nucleic acid-guided nucleases may be used in RNP1 and RNP2.
  • Nucleic acid-guided nucleases include Type V and Type VI nucleic acid-guided nucleases, as well as nucleic acid-guided nucleases that comprise a RuvC nuclease domain or a RuvC-like nuclease domain but lack an HNH nuclease domain. Nucleic acid-guided nucleases with these properties are reviewed in Makarova and Koonin, Methods Mol.
  • BioGRID ORCS orcs:thebiogrid.org
  • GenomeCRISPR genecrispr.org
  • Plant Genome Editing Database plantcrispr.org
  • CRISPRCasFinder crispercas.i2bc.paris-saclay.fr
  • the type of nucleic acid-guided nuclease utilized in the method of detection depends on the type of target nucleic acid of interest to be detected.
  • a DNA nucleic acid-guided nuclease e.g., a Cas12a, Cas14a, or Cas3
  • an RNA nucleic acid-guided nuclease e.g., Cas13a or Cas12g
  • the target nucleic acid of interest is an RNA molecule.
  • nucleic acid-guided nucleases include, but are not limited to, Cas RNA-guided DNA endonucleases, such as Cas3, Cas12a (e.g., AsCas12a, LbCas12a), Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, and Cas12j; Cas RNA-guided RNA endonucleases, such as Cas13a (LbaCas13, LbuCas13, LwaCas13), Cas13b (e.g., CccaCas13b, PsmCas13b), and Cas12g; and any other nucleic acid (DNA, RNA, or cDNA) targeting nucleic acid-guided nuclease with cis-cleavage activity and collateral trans-cleavage activity.
  • Cas RNA-guided DNA endonucleases such as Cas3, Ca
  • the nucleic acid-guided nuclease is a Type V CRISPR-Cas nuclease, such as a Cas12a, Cas13a, or Cas14a. In some embodiments, the nucleic acid-guided nuclease is a Type I CRISPR-Cas nuclease, such as Cas3. Type II and Type VI nucleic acid-guided nucleases may also be employed.
  • gRNA Guide RNA
  • the present disclosure detects a target nucleic acid of interest via a reaction mixture containing at least two gRNAs.
  • Suitable guide RNAs include at least one crRNA region to enable specificity in every reaction.
  • the gRNA of RNP1 is specific to a target nucleic acid of interest
  • the gRNA of RNP2 is specific to an unblocked nucleic acid or a synthesized activating molecule (both described in detail herein).
  • an advantageous feature of the cascade assay is that, with the exception of the gRNA in the RNP1 (i.e., the gRNA specific to the target nucleic acid of interest), the cascade assay components can stay the same no matter what target nucleic acid(s) of interest are being detected. In this sense, the cascade assay is modular.
  • the gRNA may be provided in the cascade assay reaction mix in a preassembled RNP, as an RNA molecule, or may also be provided as a DNA sequence to be transcribed, in, e.g., a vector backbone. If provided as a gRNA molecule, the gRNA sequence may include multiple endoribonuclease recognition sites (e.g., Csy4) for multiplex processing. Alternatively, if provided as a DNA sequence to be transcribed, an endoribonuclease recognition site is encoded between neighboring gRNA sequences and more than one gRNA can be transcribed in a single expression cassette.
  • endoribonuclease recognition site is encoded between neighboring gRNA sequences and more than one gRNA can be transcribed in a single expression cassette.
  • Direct repeats can also serve as endoribonuclease recognition sites for multiplex processing.
  • Guide RNAs are generally about 20 nucleotides to about 300 nucleotides in length and may contain a spacer sequence containing a plurality of bases and complementary to a protospacer sequence in the target sequence.
  • the gRNA spacer sequence may be 50%, 60%, 75%, 80%, 85%, 90%, 95%, 97.5%, 98%, 99%, or more complementary to its intended target nucleic acid of interest.
  • the gRNA of RNP1 is capable of complexing with the nucleic acid-guided nuclease to perform cis-cleavage of a target nucleic acid of interest (e.g., a DNA or RNA), which triggers non-sequence specific trans-cleavage of other molecules in the reaction mix.
  • a target nucleic acid of interest e.g., a DNA or RNA
  • Guide RNAs include any polynucleotide sequence having sufficient complementarity with a target nucleic acid of interest (or target sequences generated by unblocking blocked nucleic acid molecules or target sequences generated by synthesizing activating molecules as described below).
  • Target sequences may include a protospacer-adjacent motif (PAM), and, following gRNA binding, the nucleic acid-guided nuclease induces a double-stranded break either inside or outside the protospacer region of the target sequence.
  • PAM protospacer-adjacent motif
  • the gRNA (e.g., of RNP1) is an exo-resistant circular molecule that can include several DNA bases between the 5′ end and the 3′ end of a natural guide RNA and is capable of binding a target sequence.
  • the length of the circularized guide for RNP1 can be such that the circular form of guide can be complexed with a nucleic acid-guided nuclease to form a modified RNP1 which can still retain its cis-cleavage (specific) and trans-cleavage (non-specific) nuclease activity.
  • the gRNA may be a modified or non-naturally occurring nucleic acid molecule.
  • the gRNAs of the disclosure may further contain a locked nucleic acid (LNA), a bridged nucleic acid (BNA), and/or a peptide nucleic acid (PNA).
  • LNA locked nucleic acid
  • BNA bridged nucleic acid
  • PNA peptide nucleic acid
  • a modified nucleic acid molecule may contain a modified or non-naturally occurring nucleoside, nucleotide, and/or internucleoside linkage, such as a 2′-O-methyl (2′-O-Me) modified nucleoside, a 2′-fluoro (2′-F) modified nucleoside, and a phosphorothioate (PS) bond, or any other nucleic acid molecule modifications described herein.
  • a 2′-O-methyl (2′-O-Me) modified nucleoside such as a 2′-O-methyl (2′-O-Me) modified nucleoside, a 2′-fluoro (2′-F) modified nucleoside, and a phosphorothioate (PS) bond, or any other nucleic acid molecule modifications described herein.
  • a 2′-O-methyl (2′-O-Me) modified nucleoside such as a 2′-fluoro (2′-F) modified nucleoside,
  • RNP Ribonucleoprotein
  • the assay “reaction mix” may comprise separate nucleic acid-guided nucleases and gRNAs (or coding sequences therefor)
  • the cascade assays preferably comprise preassembled ribonucleoprotein complexes (RNPs) in the reaction mix, allowing for faster detection kinetics.
  • RNPs preassembled ribonucleoprotein complexes
  • the present cascade assay employs at least two types of RNP complexes, RNP1 and RNP2, each type containing a nucleic acid-guided nuclease and a gRNA.
  • RNP1 and RNP2 may comprise the same nucleic acid-guided nuclease or may comprise different nucleic acid-guided nucleases; however, the gRNAs in RNP1 and RNP2 are different and are configured to detect different nucleic acids.
  • the reaction mixture contains about 1 fM to about 10 ⁇ M of a given RNP1, or about 1 pM to about 1 ⁇ M of a given RNP1, or about 10 pM to about 500 pM of a given RNP1.
  • the reaction mixture contains about 6 ⁇ 10 4 to about 6 ⁇ 10 12 complexes per microliter ( ⁇ l) of a given RNP1, or about 6 ⁇ 10 6 to about 6 ⁇ 10 10 complexes per microliter ( ⁇ l) of a given RNP1. In some embodiments, the reaction mixture contains about 1 fM to about 1 mM of a given RNP2, or about 1 pM to about 500 ⁇ M of a given RNP2, or about 10 pM to about 100 ⁇ M of a given RNP2.
  • the reaction mixture contains about 6 ⁇ 10 4 to about 6 ⁇ 10 14 complexes per microliter ( ⁇ l) of a given RNP2 or about 6 ⁇ 10 6 to about 6 ⁇ 10 12 complexes per microliter ( ⁇ l) of a given RNP2.
  • ⁇ l microliter
  • ⁇ l complexes per microliter
  • ⁇ l complexes per microliter
  • the reaction mixture includes 1 to about 1,000 different RNP1s (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 27, 28, 19, 20, 21, 22, 23, 24, 25, 50, 75, 100, 125, 150, 175, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650, 700, 750, 800, 850, 900, 950, or 1,0000 RNP1s), where different RNP1s comprise a different gRNA (or crRNA thereof) polynucleotide sequence.
  • RNP1s e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 27, 28, 19, 20, 21, 22, 23, 24, 25, 50, 75, 100, 125, 150, 175, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650, 700, 750, 800, 850, 900, 950, or 1,0000 RNP1s
  • different RNP1s comprise a different gRNA (or crRNA thereof) polynucleot
  • a reaction mixture designed for syndromic testing by definition comprises more than one unique RNP1-gRNA (or RNP1-crRNA) ribonucleoprotein complex for the purpose of detecting more than one target nucleic acid of interest. More than one RNP1 may also be present for the purpose of targeting more than one target nucleic acid of interest from a single organism or condition.
  • the gRNA of RNP1 may be homologous or heterologous, relative to the gRNA of other RNP1 present in the reaction mixture.
  • a homologous mixture of RNP1 gRNAs has a number of gRNAs with the same nucleotide sequence, whereas a heterologous mixture of RNP1 gRNAs has multiple gRNAs with different nucleotide sequences (e.g., gRNAs targeting different loci, genes, variants, and/or microbial species).
  • the disclosed methods of identifying one or more target nucleic acids of interest may include a reaction mixture containing more than two heterologous gRNAs, more than three heterologous gRNAs, more than four heterologous gRNAs, more than five heterologous gRNAs, more than six heterologous gRNAs, more than seven heterologous gRNAs, more than eight heterologous gRNAs, more than nine heterologous gRNAs, more than ten heterologous gRNAs, more than eleven heterologous gRNAs, more than twelve heterologous gRNAs, more than thirteen heterologous gRNAs, more than fourteen heterologous gRNAs, more than fifteen heterologous gRNAs, more than sixteen heterologous gRNAs, more than seventeen heterologous gRNAs, more than eighteen heterologous gRNAs, more than nineteen heterologous gRNAs, more than twenty heterologous gRNAs, more than twenty-one heterologous gRNAs, more than twenty-
  • the reaction mixture may contain: a number of RNP1s having a gRNA targeting parainfluenza virus 1; a number of RNP1s having a gRNA targeting human metapneumovirus; a number of RNP1s having a gRNA targeting human rhinovirus; a number of RNP1s having a gRNA targeting human enterovirus; and a number of RNP1s having a gRNA targeting coronavirus HKU1.
  • the reaction mixture may contain: a number of RNP1s containing a gRNA targeting two or more SARS-Co-V-2 variants, e.g., B.1.1.7, B.1.351, P.1, B.1.617.2, BA.1, BA.2, BA.2.12.1, BA.4, and BA.5 and subvariants thereof.
  • the cascade assay detects a target nucleic acid of interest via detection of a signal generated in the reaction mix by a reporter moiety.
  • the detection of the target nucleic acid of interest occurs in about 10 minutes or less (e.g., 10, 9, 8, 7, 6, 5, 4, 3, 2, or 1 minute or less; e.g., FIGS. 6 - 9 , and in some embodiments the detection of the target nucleic acid molecule is in about 5 minutes or less (e.g., 5, 4, 3, 2, or 1 minute or less; e.g., FIGS. 10 - 14 ). In some embodiments, the detection of the target nucleic acid molecule is in about 1 minute (e.g., FIGS. 10 - 13 ).
  • trans- and/or cis-cleavage by the nucleic acid-guided nuclease in RNP2 releases a signal.
  • trans-cleavage of stand-alone (e.g., not bound to any blocked nucleic acid molecules) reporter moieties may generate signal changes at rates that are proportional to the cleavage rate, as new RNP2s are activated over time (shown in FIG. 1 B and at top of FIG. 4 ).
  • Trans-cleavage by either an activated RNP1 or an activated RNP2 may release a signal.
  • the reporter moiety may be bound to the blocked nucleic acid molecule, where trans-cleavage of the blocked nucleic acid molecule and conversion to an unblocked nucleic acid molecule may generate signal changes at rates that are proportional to the cleavage rate, as new RNP2s are activated over time, thus allowing for real time reporting of results (shown at FIG. 4 , center).
  • the reporter moiety may be bound to a blocked nucleic acid molecule such that cis-cleavage following the binding of the RNP2 to an unblocked nucleic acid molecule releases a PAM distal sequence, which in turn generates a signal at rates that are proportional to the cleavage rate (shown at FIG. 4 , bottom).
  • the reporter moiety may be bound to the gRNA.
  • the reporter moiety may be a synthetic molecule linked or conjugated to a reporter and quencher such as, for example, a TaqMan probe with a dye label (e.g., FAM or FITC) on the 5′ end and a quencher on the 3′ end.
  • the reporter and quencher may be about 20-30 bases apart or less for effective quenching via fluorescence resonance energy transfer (FRET). Alternatively, signal generation may occur through different mechanisms.
  • FRET fluorescence resonance energy transfer
  • Other detectable moieties, labels, or reporters can also be used to detect a target nucleic acid of interest as described herein. Reporter moieties can be labeled in a variety of ways, including direct or indirect attachment of a detectable moiety such as a fluorescent moiety, hapten, or colorimetric moiety.
  • detectable moieties include various radioactive moieties, enzymes, prosthetic groups, fluorescent markers, luminescent markers, bioluminescent markers, metal particles, and protein-protein binding pairs, e.g., protein-antibody binding pairs.
  • fluorescent moieties include, but are not limited to, yellow fluorescent protein (YFP), green fluorescence protein (GFP), cyan fluorescence protein (CFP), umbelliferone, fluorescein, fluorescein isothiocyanate, rhodamine, dichlorotriazinylamine fluorescein, cyanines, dansyl chloride, phycocyanin, and phycoerythrin.
  • bioluminescent markers include, but are not limited to, luciferase (e.g., bacterial, firefly, click beetle and the like), luciferin, and aequorin.
  • enzyme systems having visually detectable signals include, but are not limited to, galactosidases, glucuronidases, phosphatases, peroxidases, and cholinesterases.
  • Identifiable markers also include radioactive elements such as 125 1, 35 S, 14 C, or 3 H.
  • a radioactive label can be detected using a scintillation counter, photographic film as in autoradiography, or storage phosphor imaging.
  • Fluorescent labels can be detected by exciting the fluorochrome with the appropriate wavelength of light and detecting the resulting fluorescence.
  • the fluorescence can be detected visually, by means of photographic film, by the use of electronic detectors such as charge coupled devices (CCDs) or photomultipliers and the like.
  • Enzymatic labels can be detected by providing the appropriate substrates for the enzyme and detecting the resulting reaction product.
  • Simple colorimetric labels can be detected by observing the color associated with the label.
  • LFAs lateral flow assays
  • Lateral flow tests are simple devices intended to detect the presence or absence of a target nucleic acid of interest in a sample.
  • LFAs can use nucleic acid molecules conjugated nanoparticles (often gold, e.g., RNA-AuNPs or DNA-AuNPs) as a detection probe, which hybridizes to a complementary target sequence. (See FIGS. 5 A and 5 B and the description thereof below.)
  • the classic example of an LFA is the home pregnancy test.
  • Single-stranded nucleic acid reporter moieties such as ssDNA reporter moieties or RNA molecules can be introduced to show a signal change proportional to the cleavage rate, which increases with every new activated RNP2 complex over time.
  • single-stranded nucleic acid reporter moieties can also be embedded into the blocked nucleic acid molecules for real time reporting of results.
  • the method of detecting a target nucleic acid molecule in a sample using a cascade assay as described herein can involve contacting the reaction mix with a labeled detection ssDNA containing a fluorescent resonance energy transfer (FRET) pair, a quencher/phosphor pair, or both.
  • FRET fluorescent resonance energy transfer
  • a FRET pair consists of a donor chromophore and an acceptor chromophore, where the acceptor chromophore may be a quencher molecule.
  • FRET pairs (donor/acceptor) suitable for use include, but are not limited to, EDANS/fluorescein, IAEDANS/fluorescein, fluorescein/tetramethylrhodamine, fluorescein/Cy 5, IEDANS/DABCYL, fluorescein/QSY-7, fluorescein/LC Red 640, fluorescein/Cy 5.5, Texas Red/DABCYL, BODIPY/DABCYL, Lucifer yellow/DABCYL, coumarin/DABCYL, and fluorescein/LC Red 705.
  • a fluorophore/quantum dot donor/acceptor pair can be used.
  • EDANS is (5-((2-Aminoethyl)amino)naphthalene-1-sulfonic acid); IAEDANS is 5-( ⁇ 2-[(iodoacetyl)amino]ethyl ⁇ amino)naphthalene-1-sulfonic acid); DABCYL is 4-(4-dimethylaminophenyl)diazenylbenzoic acid.
  • Useful quenchers include, but are not limited to, DABCYL, QSY 7 and QSY 33.
  • the reporter moiety may comprise one or more modified nucleic acid molecules, containing a modified nucleoside or nucleotide.
  • the modified nucleoside or nucleotide is chosen from 2′-O-methyl (2′-O-Me) modified nucleoside, a 2′-fluoro (2′-F) modified nucleoside, and a phosphorothioate (PS) bond, or any other nucleic acid molecule modifications described below.
  • the nucleic acid molecules described herein may be used in a wholly or partially modified form.
  • modifications to the blocked nucleic acids, gRNAs, template molecules, reporter moieties, and blocked primer molecules described herein are introduced to optimize the molecule's biophysical properties (e.g., increasing endonuclease resistance and/or increasing thermal stability). Modifications typically are achieved by the incorporation of, for example, one or more alternative nucleosides, alternative sugar moieties, and/or alternative internucleoside linkages.
  • one or more of the cascade assay components may include one or more of the following nucleoside modifications: 5-methylcytosine (5-me-C), 5-hydroxymethyl cytosine, xanthine, hypoxanthine, 2-aminoadenine, 6-methyl and other alkyl derivatives of adenine and guanine, 2-propyl and other alkyl derivatives of adenine and guanine, 2-thiouracil, 2-thiothymine and 2-thiocytosine, 5-halouracil and cytosine, 5-propynyl (—C ⁇ C—CH 3 ) uracil and cytosine and other alkynyl derivatives of pyrimidine bases, 6-azo uracil, cytosine and thymine, 5-uracil (pseudouracil), 4-thiouracil, 8-halo, 8-amino, 8-thiol, 8-thioalkyl, 8-hydroxyl and other 8-substituted
  • nucleic acid molecules described herein may also include nucleobases in which the purine or pyrimidine base is replaced with other heterocycles, for example 7-deaza-adenine, 7-deazaguanosine, 2-aminopyridine, and/or 2-pyridone.
  • Further modification of the nucleic acid molecules described herein may include nucleobases disclosed in U.S. Pat. No. 3,687,808; Kroschwitz, ed. The Concise Encyclopedia of Polymer Science and Engineering, New York, John Wiley & Sons, 1990, pp.
  • the cascade assay components may comprise 2′ sugar modifications, including 2′-O-methyl (2′-O-Me), 2′-methoxyethoxy (2′-O—CH 2 CH 2 OCH 3 , also known as 2′-O-(2-methoxyethyl) or 2′-MOE), 2′-dimethylaminooxyethoxy, i.e., a O(CH 2 ) 2 ON(CH 3 ) 2 group, also known as 2′-DMAOE, and/or 2′-dimethylaminoethoxyethoxy (also known in the art as 2′-O-dimethylamino-ethoxy-ethyl or 2′-DMAEOE), i.e., 2′-O—CH 2 OCH 2 N(CH 3 ) 2 .
  • 2′-O-Me 2′-methoxyethoxy
  • 2′-O—CH 2 CH 2 OCH 3 also known as 2′-O-(2-methoxyethyl) or 2
  • 2′-modifications that can modify the nucleic acid molecules described herein (i.e., blocked nucleic acids, gRNAs, synthesized activating molecules, reporter molecules, and blocked primer molecules) may include all possible orientations of OH; F; O-, S-, or N-alkyl (mono- or di-); O-, S-, or N-alkenyl (mono- or di-); O-, S- or N-alkynyl (mono- or di-); or O-alkyl-O-alkyl, wherein the alkyl, alkenyl and alkynyl may be substituted or unsubstituted C1 to C10 alkyl or C2 to C10 alkenyl and alkynyl.
  • sugar substituent groups include, e.g., aminopropoxy (—OCH 2 CH 2 CH 2 NH 2 ), allyl (—CH 2 —CH ⁇ CH 2 ), —O-allyl (—O—CH 2 —CH ⁇ CH 2 ) and fluoro (F).
  • 2′-sugar substituent groups may be in the arabino (up) position or ribo (down) position.
  • the 2′-arabino modification is 2′-F.
  • Similar modifications may also be made at other positions on the interfering RNA molecule, particularly the 3′ position of the sugar on the 3′ terminal nucleoside or in 2′-5′ linked oligonucleotides and the 5′ position of 5′ terminal nucleotide.
  • Oligonucleotides may also have sugar mimetics such as cyclobutyl moieties in place of the pentofuranosyl sugar.
  • modifications to the cascade assay components may comprise internucleoside modifications such as phosphorothioates, phosphorodithioates, phosphotriesters, aminoalkylphosphotriesters, methyl and other alkyl phosphonates including 3′-alkylene phosphonates, 5′-alkylene phosphonates, phosphinates, phosphoramidates including 3′-amino phosphoramidate and aminoalkylphosphoramidates, thionophosphoramidates, thionoalkylphosphonates, thionoalkylphosphotriesters, selenophosphates, and boranophosphates having normal 3′-5′ linkages, 2′-5′ linked analogs of these, and those having inverted polarity wherein one or more internucleotide linkages is a 3′ to 3′, 5′ to 5′ or 2′ to 2′ linkage.
  • internucleoside modifications such as phosphorothioates, phosphorodithioates, phospho
  • FIG. 1 B depicts the cascade assay generally.
  • a specific embodiment of the cascade assay utilizing blocked nucleic acids is depicted in FIG. 2 A .
  • a blocked nucleic acid is used to prevent the activation of RNP2 in the absence of a target nucleic acid of interest.
  • the method in FIG. 2 A begins with providing the cascade assay components RNP1 ( 201 ), RNP2 ( 202 ) and blocked nucleic acid molecules ( 203 ).
  • RNP1 ( 201 ) comprises a gRNA specific for a target nucleic acid of interest and a nucleic acid-guided nuclease (e.g., Cas 12a or Cas 14 for a DNA target nucleic acid of interest or a Cas 13a for an RNA target nucleic acid of interest) and RNP2 ( 202 ) comprises a gRNA specific for an unblocked nucleic acid molecule and a nucleic acid-guided nuclease (again, Cas 12a or Cas 14 for a DNA unblocked nucleic acid molecule or a Cas 13a for an RNA unblocked nucleic acid molecule).
  • a nucleic acid-guided nuclease e.g., Cas 12a or Cas 14 for a DNA target nucleic acid of interest or a Cas 13a for an RNA target nucleic acid of interest
  • RNP2 ( 202 ) comprises a gRNA specific for an unblocked nu
  • the nucleic acid-guided nucleases in RNP1 ( 201 ) and RNP2 ( 202 ) can be the same or different depending on the type of target nucleic acid of interest and unblocked nucleic acid molecule. What is key, however, is that the nucleic acid-guided nucleases in RNP1 and RNP2 may be activated to have trans-cleavage activity following initiation of cis-cleavage activity.
  • a sample comprising a target nucleic acid of interest ( 204 ) is added to the cascade assay reaction mix.
  • the target nucleic acid of interest ( 204 ) combines with and activates RNP1 ( 205 ) but does not interact with or activate RNP2 ( 202 ).
  • RNP1 cuts the target nucleic acid of interest ( 204 ) via sequence-specific cis-cleavage, which then activates non-specific trans-cleavage of other nucleic acids present in the reaction mix, including the blocked nucleic acid molecules ( 203 ).
  • blocking moiety may refer to nucleoside modifications, topographical configurations such as secondary structures, and/or structural modifications.
  • the unblocked nucleic acid molecule ( 206 ) can then interact with and activate an RNP2 ( 208 ) complex. Because the nucleic acid-guided nucleases in the RNP1x ( 205 ) and RNP2x ( 208 ) have both cis- and trans-cleavage activity, more blocked nucleic acid molecules ( 203 ) become unblocked nucleic acid molecules ( 206 ) triggering activation of more RNP2 ( 208 ) complexes and more trans-cleavage activity in a cascade.
  • FIG. 2 A at bottom depicts the concurrent activation of reporter moieties.
  • Intact reporter moieties ( 209 ) comprise a quencher ( 210 ) and a fluorophore ( 211 ) linked by a nucleic acid sequence. As described above in relation to FIG. 1 B , the reporter moieties are also subject to trans-cleavage by activated RNP1 ( 205 ) and RNP2 ( 208 ). The intact reporter moieties ( 209 ) become activated reporter moieties ( 212 ) when the quencher ( 210 ) is separated from the fluorophore ( 211 ), emitting a fluorescent signal ( 213 ).
  • the cascade assay is that, with the exception of the gRNA in the RNP1 (gRNA1), the cascade assay components are modular in the sense that the components stay the same no matter what target nucleic acid(s) of interest are being detected.
  • FIG. 2 B is a diagram showing an exemplary blocked nucleic acid molecule ( 220 ) and an exemplary technique for unblocking the blocked nucleic acid molecules described herein.
  • a blocked single-stranded or double-stranded, circular or linear, DNA or RNA molecule ( 220 ) comprising a target strand ( 222 ) may contain a partial hybridization with a complementary non-target strand nucleic acid molecule ( 224 ) containing unhybridized and cleavable secondary loop structures ( 226 ) (e.g., hairpin loops, tetraloops, pseudoknots, junctions, kissing hairpins, internal loops, bulges, and multibranch loops).
  • Trans-cleavage of the loops by, e.g., activated RNP1s or RNP2s generates short strand nucleotide sequences ( 228 ) which, because of the short length and low melting temperature T m , can dehybridize at room temperature (e.g., 15°-25° C.), thereby unblocking the blocked nucleic acid molecule ( 220 ) to create an unblocked nucleic acid molecule ( 230 ), enabling the internalization of the unblocked nucleic acid molecule ( 230 ) (target strand) into an RNP2, leading to RNP2 activation.
  • room temperature e.g. 15°-25° C.
  • a blocked nucleic acid molecule may be single-stranded or double-stranded, circular or linear, and may further contain a partially hybridized nucleic acid sequence containing cleavable secondary loop structures, as exemplified by “L” in FIGS. 2 C- 2 E.
  • Such blocked nucleic acids typically have a low binding affinity, or high dissociation constant (K d ) in relation to binding to RNP2 and may be referred to herein as a high K d nucleic acid molecule.
  • low K d values range from about 100 fM to about 1 aM or lower (e.g., 100 zM) and high K d values are in the range of 100 nM to about 100 ⁇ M (10 mM) and thus are about 10 5 -, 10 6 -, 10 7 -, 10 8 -, 10 9 - to 10 10 -fold or higher as compared to low K d values.
  • the blocked nucleic acid molecules (high K d molecules) described herein can be converted into unblocked nucleic acid molecules (low K d molecules—also in relation to binding to RNP2) via cleavage of nuclease-cleavable regions (e.g., via active RNP1s and RNP2s).
  • the unblocked nucleic acid molecule has a higher binding affinity for the gRNA in the RNP2 than does the blocked nucleic acid molecule, although there may be some “leakiness” where some blocked nucleic acid molecules are able to interact with the gRNA in the RNP2.
  • an unblocked nucleic acid molecule has a substantially higher likelihood than a blocked nucleic acid molecule to hybridize with the gRNA of RNP2.
  • the RNP2 activation triggers trans-cleavage activity, which in turn leads to more RNP2 activation by further cleaving blocked nucleic acid molecules, resulting in a positive feedback loop.
  • the blocked nucleic acid molecules may be single-stranded (ss) or double-stranded (ds) and contain a first nucleotide sequence and a second nucleotide sequence.
  • the first nucleotide sequence has sufficient complementarity to hybridize to a gRNA of RNP2, and the second nucleotide sequence does not.
  • the first and second nucleotide sequences of a blocked nucleic acid molecule may be on the same nucleic acid molecule (e.g., for single-strand embodiments) or on separate nucleic acid molecules (e.g., for double strand embodiments).
  • Trans-cleavage (e.g., via RNP1 or RNP2) of the second nucleotide sequence converts the blocked nucleic acid molecule to a single-strand unblocked nucleic acid molecule.
  • the unblocked nucleic acid molecule contains only the first nucleotide sequence, which has sufficient complementarity to hybridize to the gRNA of RNP2, thereby activating the trans-endonuclease activity of RNP2.
  • the second nucleotide sequence at least partially hybridizes to the first nucleotide sequence, resulting in a secondary structure containing at least one loop (e.g., hairpin loops, tetraloops, pseudoknots, junctions, kissing hairpins, internal loops, bulges, and multibranch loops).
  • loops block the nucleic acid molecule from binding or incorporating into an RNP complex in a manner to initiate trans cleavage (see, e.g., the exemplary structures in FIGS. 2 C- 2 E ).
  • the blocked nucleic acid molecule may contain a protospacer adjacent motif (PAM) sequence, or partial PAM sequence, positioned between the first and second nucleotide sequences, where the first sequence is 5′ to the PAM sequence, or partial PAM sequence, (see FIG. 2 G ). Inclusion of a PAM sequence may increase the reaction kinetics internalizing the unblocked nucleic acid molecule into RNP2 and thus decrease the time to detection. In other embodiments, the blocked nucleic acid molecule does not contain a PAM sequence.
  • PAM protospacer adjacent motif
  • the blocked nucleic acid molecules i.e., high K d nucleic acid molecules—in relation to binding to RNP2
  • the blocked nucleic acid molecules may include a structure represented by Formula I (e.g., FIG. 2 C ), Formula II (e.g., FIG. 2 D ), Formula III (e.g., FIG. 2 E ), or Formula IV (e.g., FIG. 2 F ) wherein Formulas I-IV are in the 5′-to-3 direction:
  • Nucleotide mismatches can be introduced in any of the above structures containing double strand segments (for example, where M is absent in Formula I or Formula III) to reduce the melting temperature (Tm) of the segment such that once the loop (L) is cleaved, the double strand segment is unstable and dehybridizes rapidly.
  • the percentage of nucleotide mismatches of a given segment may vary between 0% and 50%; however, the maximum number of nucleotide mismatches is limited to a number where the secondary loop structure still forms.
  • “Segments” in the above statement refers to A, B, and C. In other words, the number of hybridized bases can be less than or equal to the length of each double strand segment and vary based on number of mismatches introduced.
  • T will have sequence complementarity to a nucleotide sequence (e.g., a spacer sequence) within a gRNA of RNP2.
  • the nucleotide sequence of T is to be designed such that hybridization of T to the gRNA of RNP2 activates the trans-nuclease activity of RNP2.
  • T-T′ will have sequence complementarity to a sequence (e.g., a spacer sequence) within the gRNA of RNP2.
  • T-T′ The nucleotide sequence of T-T′ is to be designed such that hybridization of T-T′ to the gRNA of RNP2 activates the trans-nuclease activity of RNP2.
  • full complementarity to the gRNA is not necessarily required, provided there is sufficient complementarity to cause hybridization and trans-cleavage activation of RNP2.
  • nucleotide sequences of blocked nucleic acid molecules include those in Table 1.
  • sequences may include nuclease resistant modifications such as PS modifications in all bases except the Loop sequences, where Loop sequences are the unhybridized bases.
  • the blocked nucleic acid molecules of the disclosure may further contain a reporter moiety attached thereto such that cleavage of the blocked nucleic acid releases a signal from the reporter moiety.
  • a reporter moiety attached thereto such that cleavage of the blocked nucleic acid releases a signal from the reporter moiety.
  • the blocked nucleic acid molecule may be a modified or non-naturally occurring nucleic acid molecule.
  • the blocked nucleic acid molecules of the disclosure may further contain a locked nucleic acid (LNA), a bridged nucleic acid (BNA), and/or a peptide nucleic acid (PNA).
  • LNA locked nucleic acid
  • BNA bridged nucleic acid
  • PNA peptide nucleic acid
  • the blocked nucleic acid molecule may contain a modified or non-naturally occurring nucleoside, nucleotide, and/or internucleoside linkage, such as a 2′-O-methyl (2′—O-Me) modified nucleoside, a 2′-fluoro (2′-F) modified nucleoside, and a phosphorothioate (PS) bond, any other nucleic acid molecule modifications described above, and any combination thereof.
  • a modified or non-naturally occurring nucleoside, nucleotide, and/or internucleoside linkage such as a 2′-O-methyl (2′—O-Me) modified nucleoside, a 2′-fluoro (2′-F) modified nucleoside, and a phosphorothioate (PS) bond, any other nucleic acid molecule modifications described above, and any combination thereof.
  • FIG. 2 G at left shows an exemplary single-strand blocked nucleic acid molecule and how the configuration of this blocked nucleic acid molecule is able to block R-loop formation with an RNP complex, thereby blocking activation of the trans-cleavage activity of RNP2.
  • the single-strand blocked nucleic acid molecule is self-hybridized and comprises: a target strand (TS) sequence complementary to the gRNA (e.g., crRNA) of RNP2; a cleavable non-target strand (NTS) sequence that is partially hybridized (e.g., it contains secondary loop structures) to the TS sequence; and a protospacer adjacent motif (PAM) sequence (e.g., 5′ NAAA 3′) that is specifically located at the 3′ end of the TS sequence.
  • TS target strand
  • NTS cleavable non-target strand
  • PAM protospacer adjacent motif
  • An RNP complex with 3′ ⁇ +5′ diffusion e.g., 1D diffusion initiates R-loop formation upon PAM recognition.
  • R-loop formation is completed upon a stabilizing ⁇ 17 base hybridization of the TS to the gRNA of RNP2; however, because of the orientation of the PAM sequence relative to the secondary loop structure(s), the blocked nucleic acid molecule sterically prevents the TS sequence from hybridizing with the gRNA of RNP2, thereby blocking the stable R-loop formation required for the cascade reaction.
  • FIG. 2 G at right shows the blocked nucleic acid molecule being unblocked via trans-cleavage (e.g., by RNP1) and subsequent dehybridization of the NTS's secondary loop structures, followed by binding of the TS sequence to the gRNA of RNP2, thereby completing stable R-loop formation and activating the trans-cleavage activity of the RNP2 complex.
  • the blocked nucleic acid molecules provided herein are circular DNAs, RNAs or chimeric (DNA-RNA) molecules ( FIG. 2 H ), and the blocked nucleic acid molecules may include different base compositions depending on the Cas enzyme used for RNP1 and RNP2.
  • the 5′ and 3′ ends are covalently linked together. This configuration makes internalization of the blocked nucleic acid molecule into RNP2—and subsequent RNP2 activation—sterically unfavorable, thereby blocking the progression of a CRISPR Cascade reaction.
  • RNP2 activation e.g., trans-cleavage activity
  • the blocked nucleic acid molecules are topologically circular molecules with 5′ and 3′ portions hybridized to each other using DNA, RNA, LNA, BNA, or PNA bases which have a very high melting temperature (Tm).
  • Tm melting temperature
  • the high Tm causes the structure to effectively behave as a circular molecule even though the 5′ and 3′ ends are not covalently linked.
  • the 5′ and 3′ ends can also have base non-naturally occurring modifications such as phosphorothioate bonds to provide increased stability.
  • each blocked nucleic acid molecule includes a first region, which is a target sequence specific to the gRNA of RNP2, and a second region, which is a sequence that can be cleaved by nuclease enzymes of activated RNP1 and/or RNP2.
  • the first region may include a nuclease-resistant nucleic acid sequence such as, for example, a phosphorothioate group or other non-naturally occurring nuclease-resistant base modifications, for protection from trans-endonuclease activity.
  • the first region of the blocked nucleic acid molecule when the Cas enzyme in both RNP1 and RNP2 is Cas12a, the first region of the blocked nucleic acid molecule includes a nuclease-resistant DNA sequence, and the second region of the blocked nucleic acid molecule includes a cleavable DNA sequence.
  • the Cas enzyme in RNP1 when the Cas enzyme in RNP1 is Cas12a and the Cas enzyme in RNP2 is Cas13a, the first region of the blocked nucleic acid molecule includes a nuclease-resistant RNA sequence, and the second region of the blocked nucleic acid molecule includes a cleavable DNA sequence and a cleavable RNA sequence.
  • the first region of the blocked nucleic acid molecule when the Cas enzyme in RNP1 is Cas13a and the Cas enzyme in RNP2 is Cas12a, the first region of the blocked nucleic acid molecule includes a nuclease-resistant DNA sequence, and the second region of the blocked nucleic acid molecule includes a cleavable DNA sequence and a cleavable RNA sequence.
  • the first region of the blocked nucleic acid molecule includes a nuclease-resistant RNA sequence
  • the second region of the blocked nucleic acid molecule includes a cleavable RNA sequence.
  • the blocked nucleic acids described above may also be blocked primer molecules.
  • Blocked primer molecules include a sequence complementary to a primer binding domain (PBD) on a template molecule (see description below in reference to FIGS. 3 A and 3 B ) and can have the same general structures as the blocked nucleic acid molecules described above.
  • a PBD serves as a nucleotide sequence for primer hybridization followed by primer polymerization by a polymerase.
  • the blocked primer nucleic acid molecule may include a sequence complementary to the PBD on the 5′ end of T.
  • the unblocked primer nucleic acid molecule can bind to a template molecule at the PBD and copy the template molecule via polymerization by a polymerase.
  • FIGS. 3 A and 3 B Other specific embodiments of the cascade assay that utilize blocked primer molecules and are depicted in FIGS. 3 A and 3 B .
  • activation of RNP1 and trans-cleavage of the blocked nucleic acid molecules were used to activate RNP2—that is, the unblocked nucleic acid molecules are a target sequence for the gRNA in RNP2.
  • activation of RNP1 and trans-cleavage unblocks a blocked primer molecule that is then used to prime a template molecule for extension by a polymerase, thereby synthesizing activating molecules that are the target sequence for the gRNA in RNP2.
  • FIG. 3 A is a diagram showing the sequence of steps in an exemplary cascade assay involving circular blocked primer molecules and linear template molecules.
  • a cascade assay reaction mix comprising 1) RNP1s ( 301 ) (only one RNP1 is shown); 2) RNP2s ( 302 ); 3) linear template molecules ( 330 ) (which is the non-target strand); 4) a circular blocked primer molecule ( 334 ) (i.e., a high K d molecule); and 5) a polymerase ( 338 ), such as a D29 polymerase.
  • the linear template molecule ( 330 ) (non-target strand) comprises a PAM sequence ( 331 ), a primer binding domain (PBD) ( 332 ) and, optionally, a nucleoside modification ( 333 ) to protect the linear template molecule ( 330 ) from 3′ ⁇ 5′ exonuclease activity.
  • Blocked primer molecule ( 334 ) comprises a cleavable region ( 335 ) and a complement to the PBD ( 332 ) on the linear template molecule ( 330 ).
  • the target nucleic acid of interest ( 304 ) Upon addition of a sample comprising a target nucleic acid of interest ( 304 ) (capable of complexing with the gRNA in RNP1 ( 301 )), the target nucleic acid of interest ( 304 ) combines with and activates RNP1 ( 305 ) but does not interact with or activate RNP2 ( 302 ). Once activated, RNP1 cuts the target nucleic acid of interest ( 304 ) via sequence specific cis-cleavage, which activates non-specific trans-cleavage of other nucleic acids present in the reaction mix, including at least one of the blocked primer molecules ( 334 ).
  • the circular blocked primer molecule ( 334 ) i.e., a high K d molecule, where high K d relates to binding to RNP2
  • an unblocked linear primer molecule ( 344 ) a low K d molecule, where low K d related to binding to RNP2
  • the synthesized activating molecule ( 346 ) is capable of activating RNP2 ( 302 ⁇ 308 ). As described above, because the nucleic acid-guided nuclease in the RNP2 ( 308 ) complex exhibits (that is, possesses) both cis- and trans-cleavage activity, more blocked primer molecules ( 334 ) become unblocked primer molecules ( 344 ) triggering activation of more RNP2s ( 308 ) and more trans-cleavage activity in a cascade.
  • the unblocked primer molecule has a higher binding affinity for the gRNA in RNP2 than does the blocked primer molecule, although there may be some “leakiness” where some blocked primer molecules are able to interact with the gRNA in RNP2.
  • an unblocked primer molecule has a substantially higher likelihood than a blocked primer molecule to hybridize with the gRNA of RNP2.
  • FIG. 3 A at bottom depicts the concurrent activation of reporter moieties.
  • Intact reporter moieties ( 309 ) comprise a quencher ( 310 ) and a fluorophore ( 311 ).
  • the reporter moieties are also subject to trans-cleavage by activated RNP1 ( 305 ) and RNP2 ( 308 ).
  • the intact reporter moieties ( 309 ) become activated reporter moieties ( 312 ) when the quencher ( 310 ) is separated from the fluorophore ( 311 ), and the fluorophore emits a fluorescent signal ( 313 ).
  • FIG. 3 B is a diagram showing the sequence of steps in an exemplary cascade assay involving blocked primer molecules and circular template molecules.
  • the cascade assay of FIG. 3 B differs from that depicted in FIG. 3 A by the configuration of the template molecule. Where the template molecule in FIG. 3 A was linear, in FIG. 3 B the template molecule is circular.
  • a cascade assay reaction mix comprising 1) RNP1s ( 301 ) (only one RNP1 is shown); 2) RNP2s ( 302 ); 3) a circular template molecule ( 352 ) (non-target strand); 4) a circular blocked primer molecule ( 334 ); and 5) a polymerase ( 338 ), such as a D29 polymerase.
  • the circular template molecule ( 352 ) (non-target strand) comprises a PAM sequence ( 331 ) and a primer binding domain (PBD) ( 332 ).
  • Blocked primer molecule ( 334 ) comprises a cleavable region ( 335 ) and a complement to the PBD ( 332 ) on the circular template molecule ( 352 ).
  • the target nucleic acid of interest ( 304 ) Upon addition of a sample comprising a target nucleic acid of interest ( 304 ) (capable of complexing with the gRNA in RNP1 ( 301 )), the target nucleic acid of interest ( 304 ) combines with and activates RNP1 ( 305 ) but does not interact with or activate RNP2 ( 302 ). Once activated, RNP1 cuts the target nucleic acid of interest ( 304 ) via sequence specific cis-cleavage, which activates non-specific trans-cleavage of other nucleic acids present in the reaction mix, including at least one of the blocked primer molecules ( 334 ).
  • the circular blocked primer molecule ( 334 ) upon cleavage, becomes an unblocked linear primer molecule ( 344 ), which has a region ( 336 ) complementary to the PBD ( 332 ) on the circular template molecule ( 352 ) and can hybridize with the circular template molecule ( 352 ).
  • the polymerase ( 338 ) can now use the circular template molecule ( 352 ) (non-target strand) to produce concatenated activating nucleic acid molecules ( 360 ) (which are concatenated target strands), which will be cleaved by the trans-cleavage activity of activated RNP1.
  • the cleaved regions of the concatenated synthesized activating molecules ( 360 ) (target strand) are capable of activating the RNP2 ( 302 ⁇ 308 ) complex.
  • FIG. 3 B at bottom depicts the concurrent activation of reporter moieties.
  • Intact reporter moieties ( 309 ) comprise a quencher ( 310 ) and a fluorophore ( 311 ).
  • the reporter moieties are also subject to trans-cleavage by activated RNP1 ( 305 ) and RNP2 ( 308 ).
  • the intact reporter moieties ( 309 ) become activated reporter moieties ( 312 ) when the quencher ( 310 ) is separated from the fluorophore ( 311 ), and the fluorescent signal ( 313 ) is unquenched and can be detected. Signal strength increases rapidly as more blocked primer molecules ( 334 ) become unblocked primer molecules ( 344 ) generating synthesized activating nucleic acid molecules and triggering activation of more RNP2s ( 308 ) and more trans-cleavage activity of the reporter moieties ( 309 ).
  • the reporter moieties are shown as separate molecules from the blocked nucleic acid molecules, but other configurations may be employed and are discussed in relation to FIG. 4 .
  • the cascade assay components stay the same no matter what target nucleic acid(s) of interest are being detected.
  • the polymerases used in the “blocked primer molecule” embodiments serve to polymerize a reverse complement strand of the template molecule (non-target strand) to generate a synthesized activating molecule (target strand) as described above.
  • the polymerase is a DNA polymerase, such as a BST, T4, or Therminator polymerase (New England BioLabs Inc., Ipswich Mass., USA).
  • the polymerase is a Klenow fragment of a DNA polymerase.
  • the polymerase is a DNA polymerase with 5′ ⁇ 3′ DNA polymerase activity and 3′ ⁇ 5′ exonuclease activity, such as a Type I, Type II, or Type III DNA polymerase.
  • the DNA polymerase including the Phi29, T7, Q5®, Q5U®, Phusion®, OneTaq®, LongAmp®, Vent®, or Deep Vent® DNA polymerases (New England BioLabs Inc., Ipswich Mass., USA), or any active portion or variant thereof.
  • a 3′ to 5′ exonuclease can be separately used if the polymerase lacks this activity.
  • FIG. 4 depicts three mechanisms in which a cascade assay reaction can release a signal from a reporter moiety.
  • FIG. 4 at top shows the mechanism discussed in relation to FIGS. 2 A, 3 A and 3 B .
  • a reporter moiety 409 is a separate molecule from the blocked nucleic acid molecules present in the reaction mix.
  • Reporter moiety ( 409 ) comprises a quencher ( 410 ) and a fluorophore ( 411 ).
  • An activated reporter moiety ( 412 ) emits a signal from the fluorophore ( 411 ) once it has been physically separated from the quencher ( 410 ).
  • FIG. 4 at center shows a blocked nucleic acid molecule ( 403 ), which is also a reporter moiety.
  • a blocking moiety ( 407 ) can be seen (see also blocked nucleic acid molecules 203 in FIG. 2 A ).
  • Blocked nucleic acid molecule/reporter moiety ( 403 ) comprises a quencher ( 410 ) and a fluorophore ( 411 ).
  • the unblocked nucleic acid molecule ( 406 ) when the blocked nucleic acid molecule ( 403 ) is unblocked due to trans-cleavage initiated by the target nucleic acid of interest binding to RNP1, the unblocked nucleic acid molecule ( 406 ) also becomes an activated reporter moiety with fluorophore ( 411 ) separated from quencher ( 410 ). Note both the blocking moiety ( 407 ) and the quencher ( 410 ) are removed. In this embodiment, reporter signal is directly generated as the blocked nucleic acid molecules become unblocked.
  • FIG. 4 at the bottom shows that cis-cleavage of an unblocked nucleic acid or a synthesized activation molecule at a PAM distal sequence by RNP2 generates a signal. Shown are activated RNP2 ( 408 ), unblocked nucleic acid molecule ( 461 ), quencher ( 410 ), and fluorophore ( 411 ) forming an activated RNP2 with the unblocked nucleic acid/reporter moiety intact ( 460 ).
  • Cis-cleavage of the unblocked nucleic acid/reporter moiety results in an activated RNP2 with the reporter moiety activated ( 462 ), comprising the activated RNP2 ( 408 ), the unblocked nucleic acid molecule with the reporter moiety activated ( 463 ), quencher ( 410 ) and fluorophore ( 411 ).
  • the present disclosure describes cascade assays for detecting a target nucleic acid of interest in a sample.
  • the various embodiments of the cascade assay are notable in that, with the exception of the gRNA in RNP1, the cascade assay components stay the same no matter what target nucleic acid(s) of interest are being detected.
  • Target nucleic acids of interest are derived from samples.
  • suitable samples for testing include, but are not limited to, any environmental sample, such as air, water, soil, surface, food, clinical sites and products, industrial sites and products, pharmaceuticals, medical devices, nutraceuticals, cosmetics, personal care products, agricultural equipment and sites, and commercial samples, and any biological sample obtained from an organism or a part thereof, such as a plant, animal, or bacteria.
  • the biological sample is obtained from an animal subject, such as a human subject.
  • a biological sample is any solid or fluid sample obtained from, excreted by or secreted by any living organism, including, without limitation, single celled organisms, such as bacteria, yeast, protozoans, and amoebas among others, multicellular organisms including plants or animals, including samples from a healthy or apparently healthy human subject or a human patient affected by a condition or disease to be diagnosed or investigated, such as an infection with a pathogenic microorganism, such as a pathogenic bacteria or virus.
  • a biological sample can be a biological fluid obtained from, for example, blood, plasma, serum, urine, stool, sputum, mucous, lymph fluid, synovial fluid, bile, ascites, pleural effusion, seroma, saliva, cerebrospinal fluid, aqueous or vitreous humor, or any bodily secretion, a transudate, an exudate (for example, fluid obtained from an abscess or any other site of infection or inflammation), or fluid obtained from a joint (for example, a normal joint or a joint affected by disease, such as rheumatoid arthritis, osteoarthritis, gout or septic arthritis), or a swab of skin or mucosal membrane surface (e.g., a nasal or buccal swab).
  • a transudate for example, an exudate (for example, fluid obtained from an abscess or any other site of infection or inflammation), or fluid obtained from a joint (for example, a normal joint or
  • the sample can be a viral or bacterial sample or a biological sample that has been minimally processed, e.g., only treated with a brief lysis step prior to detection.
  • minimal processing can include thermal lysis at an elevated temperature to release nucleic acids. Suitable methods are contemplated in U.S. Pat. No. 9,493,736, among other references. Common methods for cell lysis involve thermal, chemical, enzymatic, or mechanical treatment of the sample or a combination of those.
  • minimal processing can include treating the sample with chaotropic salts such as guanidine isothiocyanate or guanidine HCl. Suitable methods are contemplated in U.S. Pat. Nos.
  • minimal processing may include contacting the sample with reducing agents such as DTT or TCEP and EDTA to inactivate inhibitors and/or other nucleases present in the crude samples.
  • minimal processing for biofluids may include centrifuging the samples to obtain cell-debris free supernatant before applying the reagents. Suitable methods are contemplated in U.S. Pat. No. 8,809,519, among other references.
  • minimal processing may include performing DNA/RNA extraction to get purified nucleic acids before applying CRISPR Cascade reagents.
  • FIG. 5 A shows a lateral flow assay (LFA) device that can be used to detect the cleavage and separation of a signal from a reporter moiety.
  • the reporter moiety may be a single-stranded or double-stranded oligonucleotide with terminal biotin and fluorescein amidite (FAM) modifications; and, as described above, the reporter moiety may also be part of a blocked nucleic acid.
  • the LFA device may include a pad with binding particles, such as gold nanoparticles functionalized with anti-FAM antibodies; a control line with a first binding moiety attached, such as avidin or streptavidin; a test line with a second binding moiety attached, such as antibodies; and an absorption pad.
  • the assay reaction mix is added to the pad containing the binding particles, (e.g., antibody labeled gold nanoparticles).
  • the binding particles e.g., antibody labeled gold nanoparticles.
  • a moiety on the reporter binds to the binding particles and is transported to the control line.
  • the reporter moiety is not cleaved, and the first binding moiety binds to the reporter moiety, with the binding particles attached.
  • the target nucleic acid of interest is present, one portion of the cleaved reporter moiety binds to the first binding moiety, and another portion of the cleaved reporter moiety bound to the binding particles via the moiety binds to the second binding moiety.
  • anti-FAM gold nanoparticles bind to a FAM terminus of a reporter moiety and flow sequentially towards the control line and then to the test line.
  • the LFA device is designed for syndromic testing.
  • multiple strips with pooled RNP1s targeting different target nucleic acids of interest may be employed, either as separate devices or in a combined device.
  • a syndromic testing device could include four lateral flow strips, with each strip indicating the presence of at least one out of several generally related (e.g., by genetics or by treatment) pathogens ( FIG. 5 B ).
  • a use for syndromic testing is in respiratory illness.
  • the first lateral flow strip could indicate the presence of at least one of the several strains of influenza that cause the common flu (e.g., influenza A, influenza A/H1, influenza A/H3, influenza A/H1-2009, and influenza B);
  • the second lateral flow strip could indicate the presence of at least one of the multiple strains of respiratory syncytial virus (RSV), such as RSV-A and RSV-B;
  • the third lateral flow strip could indicate the presence of at least one variant of SARS-CoV-2 (e.g., B.1.1.7, B.1.351, P.1, B.1.617.2, BA.1, BA.2, BA.2.12.1, BA.4, and BA.5);
  • the fourth lateral flow strip could indicate the presence of at least one of other pathogens of interest (e.g., parainfluenza virus 1-4, human metapneumovirus, human rhinovirus, human enterovirus, adenovirus, coronavirus HKU1, coronavirus NL63, coronavirus 229E,
  • the results shown in FIG. 5 B indicate a positive test for the presence of RSVA and/or RSV B nucleic acid molecules. Also as seen in FIG. 5 B , the syndromic testing device could further include a lateral flow strip for a negative control and a lateral flow strip for a positive control.
  • the kit for detecting a target nucleic acid of interest in a sample includes: first ribonucleoprotein complexes (RNP1s), second ribonucleoprotein complexes (RNP2s), blocked nucleic acid molecules, and reporter moieties.
  • the first complex (RNP1) comprises a first nucleic acid-guided nuclease and a first gRNA, where the first gRNA includes a sequence complementary to the target nucleic acid(s) of interest. Binding of the first complex (RNP1) to the target nucleic acid(s) of interest activates trans-cleavage activity of the first nucleic acid-guided nuclease.
  • the second complex (RNP2) comprises a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest.
  • the blocked nucleic acid molecule comprises a sequence complementary to the second gRNA, where trans-cleavage of the blocked nucleic acid molecule results in an unblocked nucleic acid molecule and the unblocked nucleic acid molecule can bind to the second complex (RNP2), thereby activating the trans-cleavage activity of the second nucleic acid-guided nuclease.
  • Activating trans-cleavage activity in RNP2 results in an exponential increase in unblocked nucleic acid molecules and in active reporter moieties, where reporter moieties are nucleic acid molecules and/or are operably linked to the blocked nucleic acid molecules and produce a detectable signal upon cleavage by RNP2.
  • the kit for detecting a target nucleic acid molecule in sample includes: first ribonucleoprotein complexes (RNP1s), second ribonucleoprotein complexes (RNP2s), template molecules, blocked primer molecules, a polymerase, NTPs, and reporter moieties.
  • the first ribonucleoprotein complex (RNP1) comprises a first nucleic acid-guided nuclease and a first gRNA, where the first gRNA includes a sequence complementary to the target nucleic acid of interest and where binding of RNP1 to the target nucleic acid(s) of interest activates trans-cleavage activity of the first nucleic acid-guided nuclease.
  • the second complex comprises a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest.
  • the template molecules comprise a primer binding domain (PBD) sequence as well as a sequence corresponding to a spacer sequence of the second gRNA.
  • the blocked primer molecules comprise a sequence that is complementary to the PBD on the template nucleic acid molecule and a blocking moiety.
  • RNP1 Upon binding to the target nucleic acid of interest, RNP1 becomes active triggering trans-cleavage activity that cuts at least one of the blocked primer molecules to produce at least one unblocked primer molecule.
  • the unblocked primer molecule hybridizes to the PBD of one of the template nucleic acid molecules, is trimmed of excess nucleotides by the 3′-to-5′ exonuclease activity of the polymerase and is then extended by the polymerase and NTPs to form a synthesized activating molecule with a sequence that is complementary to the second gRNA of RNP2.
  • additional trans-cleavage activity is initiated, cleaving at least one additional blocked primer molecule.
  • kits described herein may further include a sample collection device, e.g., a syringe, lancet, nasal swab, or buccal swab for collecting a biological sample from a subject, and/or a sample preparation reagent, e.g., a lysis reagent.
  • a sample collection device e.g., a syringe, lancet, nasal swab, or buccal swab for collecting a biological sample from a subject
  • a sample preparation reagent e.g., a lysis reagent.
  • Each component of the kit may be in separate container or two or more components may be in the same container.
  • the kit may further include a lateral flow device used for contacting the biological sample with the reaction mixture, where a signal is generated to indicate the presence or absence of the target nucleic acid molecule of interest.
  • the kit may further include instructions for use and other information.
  • Nucleic acids of interest may be isolated by various methods depending on the cell type and source (e.g., tissue, blood, saliva, environmental sample, etc.). Mechanical lysis is a widely-used cell lysis method and may be used to extract nucleic acids from bacterial, yeast, plant and mammalian cells. Cells are disrupted by agitating a cell suspension with “beads” at high speeds (beads for disrupting various types of cells can be sourced from, e.g., OPS Diagnostics (Lebanon N.J., US) and MP Biomedicals (Irvine, Calif., USA)). Mechanical lysis via beads begins with harvesting cells in a tissue or liquid, where the cells are first centrifuged and pelleted.
  • tissue or liquid where the cells are first centrifuged and pelleted.
  • the supernatant is removed and replaced with a buffer containing detergents as well as lysozyme and protease.
  • the cell suspension is mixed to promote breakdown of the proteins in the cells and the cell suspension then is combined with small beads (e.g., glass, steel, or ceramic beads) that are mixed (e.g., vortexed) with the cell suspension at high speeds.
  • small beads e.g., glass, steel, or ceramic beads
  • the beads collide with the cells, breaking open the cell membrane with shear forces.
  • the cell suspension is centrifuged to pellet the cellular debris and beads, and the supernatant may be purified via a nucleic acid binding column (such as the MagMAXTM Viral/Pathogen Nucleic Acid Isolation Kit from ThermoFisher (Waltham, Mass., USA) and others from Qiagen (Hilden Germany), TakaraBio (San Jose, Calif., USA), and Biocomma (Shenzen, China)) to collect the nucleic acids (see the discussion of solid phase extraction below).
  • a nucleic acid binding column such as the MagMAXTM Viral/Pathogen Nucleic Acid Isolation Kit from ThermoFisher (Waltham, Mass., USA) and others from Qiagen (Hilden Germany), TakaraBio (San Jose, Calif., USA), and Biocomma (Shenzen, China)
  • Solid phase extraction Another method for capturing nucleic acids is through solid phase extraction.
  • SPE involves a liquid and stationary phase, which selectively separate the target analyte (here, nucleic acids) from the liquid in which the cells are suspended based on specific hydrophobic, polar, and/or ionic properties of the target analyte in the liquid and the stationary solid matrix.
  • Silica binding columns and their derivatives are the most commonly used SPE techniques, having a high binding affinity for DNA under alkaline conditions and increased salt concentration; thus, a highly alkaline and concentrated salt buffer is used.
  • the nucleic acid sample is centrifuged through a column with a highly porous and high surface area silica matrix, where binding occurs via the affinity between negatively charged nucleic acids and positively charged silica material.
  • the nucleic acids bind to the silica matrices, while the other cell components and chemicals pass through the matrix without binding.
  • One or more wash steps typically are performed after the initial sample binding (i.e., the nucleic acids to the matrix), to further purify the bound nucleic acids, removing excess chemicals and cellular components non-specifically bound to the silica matrix.
  • Alternative versions of SPE include reverse SPE and ion exchange SPE, and use of glass particles, cellulose matrices, and magnetic beads.
  • Thermal lysis involves heating a sample of mammalian cells, virions, or bacterial cells at high temperatures thereby damaging the cellular membranes by denaturizing the membrane proteins. Denaturizing the membrane proteins results in the release of intracellular DNA. Cells are generally heated above 90° C., however time and temperature may vary depending on sample volume and sample type. Once lysed, typically one or more downstream methods, such as use of nucleic acid binding columns for solid phase extraction as described above, are required to further purify the nucleic acids.
  • lysis Common physical lysis methods include sonication and osmotic shock. Sonication involves creating and rupturing of cavities or bubbles to release shockwaves, thereby disintegrating the cellular membranes of the cells. In the sonication process, cells are added into lysis buffer, often containing phenylmethylsulfonyl fluoride, to inhibit proteases. The cell samples are then placed in a water bath and a sonication wand is placed directly into the sample solution.
  • Sonication typically occurs between 20-50 kHz, causing cavities to be formed throughout the solution as a result of the ultrasonic vibrations; subsequent reduction of pressure then causes the collapse of the cavity or bubble resulting in a large amount of mechanical energy being released in the form of a shockwave that propagates through the solution and disintegrates the cellular membrane.
  • the duration of the sonication pulses and number of pulses performed varies depending on cell type and the downstream application.
  • the cell suspension typically is centrifuged to pellet the cellular debris and the supernatant containing the nucleic acids may be further purified by solid phase extraction as described above.
  • Osmotic shock Another form of physical lysis is osmotic shock, which is most typically used with mammalian cells. Osmotic shock involves placing cells in DI/distilled water with no salt added. Because the salt concentration is lower in the solution than in the cells, water is forced into the cell causing the cell to burst, thereby rupturing the cellular membrane. The sample is typically purified and extracted by techniques such as e.g., solid phase extraction or other techniques known to those of skill in the art.
  • Chemical lysis involves rupturing cellular and nuclear membranes by disrupting the hydrophobic-hydrophilic interactions in the membrane bilayers via detergents. Salts and buffers (such as, e.g., Tris-HCl pH8) are used to stabilize pH during extraction, and chelating agents (such as ethylenediaminetetraacetic acid (EDTA)) and inhibitors (e.g., Proteinase K) are also added to preserve the integrity of the nucleic acids and protect against degradation. Often, chemical lysis is used with enzymatic disruption methods (see below) for lysing bacterial cell walls. In addition, detergents are used to lyse and break down cellular membranes by solubilizing the lipids and membrane proteins on the surface of cells.
  • Salts and buffers such as, e.g., Tris-HCl pH8
  • chelating agents such as ethylenediaminetetraacetic acid (EDTA)
  • inhibitors e.g., Proteinase K
  • chemical lysis
  • the contents of the cells include, in addition to the desired nucleic acids, inner cellular proteins and cellular debris. Enzymes and other inhibitors are added after lysis to inactivate nucleases that may degrade the nucleic acids. Proteinase K is commonly added after lysis, destroying DNase and RNase enzymes capable of degrading the nucleic acids. After treatment with enzymes, the sample is centrifuged, pelleting cellular debris, while the nucleic acids remain in the solution. The nucleic acids may be further purified as described above.
  • Phenol-chloroform extraction involves the ability for nucleic acids to remain soluble in an aqueous solution in an acidic environment, while the proteins and cellular debris can be pelleted down via centrifugation. Phenol and chloroform ensure a clear separation of the aqueous and organic (debris) phases.
  • DNA a pH of 7-8 is used, and for RNA, a more acidic pH of 4.5 is used.
  • Enzymatic disruption methods are commonly combined with other lysis methods such as those described above to disrupt cellular walls (bacteria and plants) and membranes. Enzymes such as lysozyme, lysostaphin, zymolase, and protease are often used in combination with other techniques such as physical and chemical lysis. For example, one can use cellulase to disrupt plant cell walls, lysosomes to disrupt bacterial cell walls and zymolase to disrupt yeast cell walls.
  • LbCas12a nuclease protein For RNP complex formation, 250 nM of LbCas12a nuclease protein was incubated with 375 nM of a target specific gRNA in 1 ⁇ Buffer (10 mM Tris-HCl, 100 ⁇ g/mL BSA) with 2-15 mM MgCl 2 at 25° C. for 20 minutes. The total reaction volume was 2 ⁇ L. Other ratios of LbCas12a nuclease to gRNAs were tested, including 1:1, 1:2 and 1:5.
  • the incubation temperature can range from 20° C.-37° C., and the incubation time can range from 10 minutes to 4 hours.
  • the reporter moieties used in the reactions herein were single-stranded DNA oligonucleotides 5-10 bases in length (e.g., with sequences of TTATT, TTTATTT, ATTAT, ATTTATTTA, AAAAA, or AAAAAAAAA) with a fluorophore and a quencher attached on the 5′ and 3′ ends, respectively.
  • the fluorophore was FAM-6
  • the quencher was IOWA BLACK® (Integrated DNA Technologies, Coralville, Iowa).
  • the reporter moieties were single stranded RNA oligonucleotides 5-10 bases in length (e.g., r(U)n, r(UUAUU)n, r(A)n).
  • RNP1 was assembled using the LbCas12a nuclease and a gRNA for the Methicillin resistant Staphylococcus aureus (MRSA) DNA according to the RNP complex formation protocol described in Example II (for this sequence, see Example VIII). Briefly, 250 nM LbCas12a nuclease was assembled with 375 nM of the MRSA-target specific gRNA.
  • MRSA Methicillin resistant Staphylococcus aureus
  • RNP2 was formed using the LbCas12a nuclease and a gRNA specific for a selected blocked nucleic acid molecule (Formula I-IV) using 500 nM LbCas12a nuclease assembled with 750 nM of the blocked nucleic acid-specific gRNA incubated in 1 ⁇ NEB 2.1 Buffer (New England Biolabs, Ipswich, Mass.) with 5 mM MgCl 2 at 25° C. for 20-40 minutes. Following incubation, RNP1s were diluted to a concentration of 75 nM LbCas12a: 112.5 nM gRNA.
  • the final reaction was carried out in 1 ⁇ Buffer, with 500 nM of the ssDNA reporter moiety, 1 ⁇ ROX dye (Thermo Fisher Scientific, Waltham, Mass.) for passive reference, 2.5 mM MgCl 2 , 4 mM NaCl, 15 nM LbCas12a: 22.5 nM gRNA RNP1, 20 nM LbCas12a: 35 nM gRNA RNP2, and 50 nM blocked nucleic acid molecule (any one of Formula I-IV) in a total volume of 9 ⁇ L.
  • 1 ⁇ L of MRSA DNA target (with samples having as low as three copies and as many as 30000 copies—see FIGS. 6 - 14 ) was added to make a final volume of 10 ⁇ L.
  • the final reaction was incubated in a thermocycler at 25° C. with fluorescence measurements taken every 1 minute.
  • RNP1 2+1+7 Format (RNP1 and MRSA target pre-incubated before addition to final reaction mix): RNP1 was assembled using the LbCas12a nuclease and a gRNA for the MRSA DNA according to RNP formation protocol described in Example II (for this sequence, see Example VIII). Briefly, 250 nM LbCas12a nuclease was assembled with 375 nM of the MRSA-target specific gRNA.
  • RNP2 was formed using the LbCas12a nuclease and a gRNA specific for a selected blocked nucleic acid molecule (Formula I-IV) using 500 nM LbCas12a nuclease assembled with 750 nM of the blocked nucleic acid-specific gRNA incubated in 1 ⁇ NEB 2.1 Buffer (New England Biolabs, Ipswich, Mass.) with 5 mM MgCl 2 at 25° C. for 20-40 minutes. Following incubation, RNP1s were diluted to a concentration of 75 nM LbCas12a: 112.5 nM gRNA.
  • the formed RNP1 was mixed with 1 ⁇ L of MRSA DNA target and incubated at 20° C.-37° C. for up to 10 minutes to activate RNP1.
  • the final reaction was carried out in 1 ⁇ Buffer, with 500 nM of the ssDNA reporter moiety, 1 ⁇ ROX dye (Thermo Fisher Scientific, Waltham, Mass.) for passive reference, 2.5 mM MgCl 2 , 4 mM NaCl, the pre-incubated and activated RNP1, 20 nM LbCas12a: 35 nM gRNA RNP2, and 50 nM blocked nucleic acid molecule (any one of Formula I-IV) in a total volume of 9 ⁇ L.
  • the final reaction was incubated in a thermocycler at 25° C. with fluorescence measurements taken every 1 minute.
  • RNP1 was assembled using the LbCas12a nuclease and a gRNA for the MRSA DNA according to the RNP complex formation protocol described in Example II (for this sequence, see Example VIII). Briefly, 250 nM LbCas12a nuclease was assembled with 375 nM of the MRSA-target specific gRNA.
  • RNP2 was formed using the LbCas12a nuclease and a gRNA specific for a selected blocked nucleic acid molecule (Formula I-IV) using 500 nM LbCas12a nuclease assembled with 750 nM of the blocked nucleic acid-specific gRNA incubated in 1 ⁇ NEB 2.1 Buffer (New England Biolabs, Ipswich, Mass.) with 5 mM MgCl 2 at 25° C. for 20-40 minutes. Following incubation, RNP1s were diluted to a concentration of 75 nM LbCas12a: 112.5 nM gRNA.
  • the formed RNP1 was mixed with 1 ⁇ L of MRSA DNA target and incubated at 20° C.-37° C. for up to 10 minutes to activate RNP1.
  • the final reaction was carried out in 1 ⁇ Buffer, with 500 nM of the ssDNA reporter moiety, 1 ⁇ ROX dye (Thermo Fisher Scientific, Waltham, Mass.) for passive reference, 2.5 mM MgCl 2 , 4 mM NaCl, the pre-incubated and activated RNP1, and 20 nM LbCas12a: 35 nM gRNA RNP2 in a total volume of 9 ⁇ L.
  • N-gene SARS-CoV-2 nucleocapsid gene
  • SARS-CoV-2 N-gene Target Sequence (Positive Control; SEQ ID NO: 3): CTCAAGGAACAACATTGCCAAAAGGCTTCTACGCAGAAGGGAGCAGAGG CGGCAGTCAAGCCTCTTCTCGTTCCTCATCACGTAGTCGCAACAGTTCA AGAAATTCAACTCCAGGCAGCAGTAGGGGAACTTCTCCTGCTAGAATGG CTGGCAATGGCGGTGATGCTGCTCTTGCTTTGCTGCTGCTTGACAGATT GAACCAGCTTGAGAGCAAAATGTCTGGTAAAGGCCAACAACAAGGC CAAACTGTCACTAAGAAATCTGCTGCTGAGGCTTCTAAGAAGCCTCGGC AAAAACGTACTGCCACTAAAGC
  • a gamma-inactivated virus was incubated in a buffer at 95° C. for 1 minute in order to lyse and release viral RNA, followed by reverse transcription to convert the viral RNA to cDNA.
  • the reverse transcription primer is designed to reverse transcribe the SARS-CoV-2 N-gene.
  • the reverse transcription primer is as follows.
  • Reverse Transcription Primer (SEQ ID NO: 4): GTTTGGCCTTGTTGTTGTT RNP1 was preassembled with a guide RNA (gRNA) sequence designed to target the N-gene of SARS-CoV-2.
  • the guide sequence is as follows.
  • RNP2 was preassembled with a gRNA sequence designed to target an unblocked nucleic acid molecule that results from unblocking (i.e., linearlizing) a circularized blocked nucleic acid molecule.
  • a circularized blocked nucleic acid molecule was designed and synthesized. The blocked nucleic acid molecule was as follows.
  • Blocked nucleic acid molecule (SEQ ID NO: 6): GTT*AT*TA*AA*TG*AC*TT*CT*CATT where the * indicate bonds that are phosphorothioate modified.
  • the 5′ and 3′ ends were covalently linked to form a circularized molecule.
  • the reaction mix contained the preassembled RNP1, preassembled RNP2, a blocked nucleic acid molecule in a buffer ( ⁇ pH 8) containing 4 mM MgCl 2 and 101 mM NaCl.
  • the buffering conditions were optimized to reduce non-specific nickase activity by the RNP complexes.
  • the cascade assay reaction proceeded for 20 minutes at 37° C. and fluorescence from the reporter molecule was measured.
  • fluorescence from the reporter molecule was measured.
  • a significant change in fluorescence was observed after 10 and 5 minutes, relative to the negative control (see the results in FIGS. 6 and 7 ).
  • the presence of the N-gene was detected in 10 minutes or less at 37° C.
  • FIG. 7 the presence of SARS-CoV-2 was detected in 10 minutes or 5 minutes at 37° C.
  • Example VII Detection of MRSA in 5 Minutes with Cascade Assay at 37° C.
  • MRSA Methicillin resistant Staphylococcus aureus
  • an RNP1 was preassembled with a gRNA sequence designed to target MRSA DNA. Specifically, RNP1 was designed to target a 20 bp region of the mecA gene of MRSA: TGTATGGCATGAGTAACGAA (SEQ ID NO: 8).
  • An RNP2 was preassembled with a gRNA sequence designed to target an unblocked nucleic acid molecule that results from unblocking (i.e., linearizing) a circularized blocked nucleic acid molecule.
  • the circularized blocked nucleic acid molecule was designed and synthesized (SEQ ID NO: 6): GTT*AT*TA*AA*TG*AC*TT*CT*CATT, where the * indicate bonds that are phosphorothioate modified.
  • MRSA DNA SEQ ID NO: 7
  • 3000, 300, 30, or 3 total copies, or a negative control e.g., 0 copies
  • the reaction mix contained the preassembled RNP1, preassembled RNP2, and a circularized blocked nucleic acid molecule, in a buffer (pH of about 8) containing 4 mM MgCl 2 and 101 mM NaCl.
  • the buffering conditions were optimized to reduce non-specific nickase activity by the RNP complexes.
  • the cascade assay proceeded for 10 minutes at 37° C., and fluorescence from the reporter moiety was measured.
  • Example VIII Detection of MRSA in Under 10 Minutes with a Cascade Assay at 25° C.
  • an RNP1 was preassembled with a guide RNA (gRNA) sequence designed to target MRSA DNA.
  • gRNA guide RNA
  • RNP1 was designed to target the following 20 bp sequence in the mecA gene of MRSA: TGTATGGCATGAGTAACGAA (SEQ ID NO: 8).
  • An RNP2 was preassembled with a gRNA sequence designed to target an unblocked nucleic acid molecule that results from unblocking (i.e., linearizing) a circularized blocked nucleic acid molecule.
  • a circularized blocked nucleic acid molecule was designed and synthesized (SEQ ID NO: 6): GTT*AT*TA*AA*TG*AC*TT*CT*CATT, where the * indicate bonds that are phosphorothioate modified.
  • the 5′ and 3′ ends were covalently linked to form a circularized molecule.
  • MRSA DNA (SEQ ID NO: 7) with 30000, 3000, 300, 30, or 3 total copies, or a negative control (e.g., 0 copies), was added to a reaction mixture to begin the cascade assay.
  • the reaction mix contained the preassembled RNP1, preassembled RNP2, the circularized blocked nucleic acid molecule in a buffer ( ⁇ pH 8) containing 4 mM MgCl 2 and 101 mM NaCl.
  • the buffering conditions were optimized to reduce non-specific nickase activity by the RNP complexes.
  • the cascade reaction proceeded for 20 minutes at 25° C., and fluorescence by the reporter molecule was measured.
  • Example IX Optimized Detection of MRSA in 1 Minute with the Cascade Assay at 25° C.
  • RNP1 was preassembled with a gRNA sequence designed to target MRSA DNA (SEQ ID NO: 7). Specifically, RNP1 was designed to target the following 20 bp sequence in the mecA gene of MRSA: TGTATGGCATGAGTAACGAA (SEQ ID NO: 8). RNP2 was preassembled with a gRNA sequence designed to target an unblocked nucleic acid molecule that results from unblocking a blocked nucleic acid molecule. Five different double stranded and linear blocked nucleic acid molecules were designed, synthesized, and tested: molecule C5, molecule C6, molecule C7, molecule C8, and molecule C9. The nucleotide sequences of molecules C5-C9 are as follows.
  • MRSA DNA Three copies of MRSA DNA (SEQ ID NO: 7) or a negative control (e.g., 0 copies) were added to a reaction mix to begin the cascade assay.
  • the reaction mix contained the preassembled RNP1, preassembled RNP2, and one of the five blocked nucleic acid molecules in a buffer ( ⁇ pH 8) containing 4 mM MgCl 2 and 71 mM NaCl. These buffering conditions were optimized to reduce non-specific nickase activity by the RNP complexes.
  • Each cascade assay proceeded for 10-20 minutes at 25° C., and fluorescence by the reporter molecule was measured for each cascade assay containing C5 (see the results shown in FIG.

Abstract

The present disclosure describes a CRISPR nuclease cascade assay that can detect one or more target nucleic acids of interest of interest at attamolar (aM) (or lower) limits in about 10 minutes or less without the need for amplifying the target nucleic acids of interest. The CRISPR cascade assays utilize signal amplification mechanisms comprising various components including CRISPR nucleases, guide RNAs (gRNAs), blocked nucleic acid molecules, blocked primer molecules, and reporter moieties.

Description

    RELATED APPLICATIONS
  • This application claims priority to U.S. Ser. No. 63/220,987, filed 12 Jul. 2021, and U.S. Ser. No. 63/289,112, filed 13 Dec. 2021.
  • FIELD OF THE INVENTION
  • The present disclosure relates to methods, compositions of matter and assay systems used to detect one or more target nucleic acids of interest in a sample. The assay systems provide signal amplification upon detection of a target nucleic acids of interest without amplification of the target nucleic acids.
  • BACKGROUND OF THE INVENTION
  • In the following discussion certain articles and methods will be described for background and introductory purposes. Nothing contained herein is to be construed as an “admission” of prior art. Applicant expressly reserves the right to demonstrate, where appropriate, that the articles and methods referenced herein do not constitute prior art under the applicable statutory provisions.
  • Rapid and accurate identification of infectious agents is important in order to select correct treatment and prevent further spreading of viral infections and pandemic diseases. For example, viral pathogens, such as SARS-CoV-2, and the associated COVID-19 disease require immediate detection and response to decrease mortality, morbidity and transmission.
  • Classic nucleic acid-guided nuclease or CRISPR (clustered regularly interspaced short palindromic repeats) detection methods usually rely on pre-amplification of target nucleic acids of interest to enhance detection sensitivity. However, amplification increases time to detection and may cause changes to the relative proportion of nucleic acids in samples that, in turn, lead to artifacts or inaccurate results. Improved technologies that allow very rapid and accurate detection of pathogens are therefore needed for timely diagnosis, prevention and treatment of disease, as well as in other applications.
  • SUMMARY OF THE INVENTION
  • This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. Other features, details, utilities, and advantages of the claimed subject matter will be apparent from the following written Detailed Description including those aspects illustrated in the accompanying drawings and defined in the appended claims. Further, all of the functionalities described in connection with one embodiment of the compositions and methods described herein are intended to be applicable to the additional embodiments of the compositions and methods described herein except where expressly stated or where the feature or function is incompatible with the additional embodiments. For example, where a given feature or function is expressly described in connection with one embodiment but not expressly mentioned in connection with an alternative embodiment, it should be understood that the feature or function may be deployed, utilized, or implemented in connection with the alternative embodiment unless the feature or function is incompatible with the alternative embodiment.
  • The present disclosure provides compositions of matter, methods, and cascade assays to detect target nucleic acids of interest. The cascade assays described herein comprise two different ribonucleoprotein complexes and either blocked nucleic acid molecules or blocked primer molecules. The blocked nucleic acid molecules or blocked primer molecules keep one of the ribonucleoprotein complexes “locked” unless and until a target nucleic acid of interest activates the other ribonucleoprotein complex. The present nucleic acid-guided nuclease cascade assay can detect one or more target nucleic acids of interest (e.g., DNA, RNA and/or cDNA) at attamolar (aM) (or lower) limits in about 10 minutes or less without the need for amplifying the target nucleic acid(s) of interest, thereby avoiding the drawbacks of multiplex amplification, such as primer-dimerization. A particularly advantageous feature of the cascade assay is that, with the exception of the gRNA in RNP1, the cascade assay components stay the same no matter what target nucleic acid(s) of interest are being detected. In this sense, the cascade assay is modular.
  • There is provided herein in one embodiment of the disclosure a reaction mixture comprising: (i) a first ribonucleoprotein (RNP) complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (ii) a second ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; and (iii) a plurality of blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the blocked nucleic acid molecules cannot activate the RNP1 or the RNP2.
  • There is provided in a second embodiment of the disclosure, a reaction mixture comprising: (i) a first complex comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (ii) a second complex comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; and (iii) a plurality of blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the blocked nucleic acid molecule cannot activate the first or second complex.
  • Provided in a third embodiment is a reaction mixture comprising: (i) a first ribonucleoprotein (RNP) (RNP1) complex comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both sequence-specific activity and non-sequence-specific activity; (ii) a second ribonucleoprotein (RNP2) complex comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both sequence-specific activity and non-sequence-specific activity; and (iii) a plurality of blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the blocked nucleic acid molecules do not bind to the RNP1 complex or the RNP2 complex. In yet another fourth embodiment of the disclosure there is provided a reaction mixture comprising: (i) a first complex comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both sequence-specific activity and non-sequence-specific activity; (ii) a second complex comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both sequence-specific activity and non-sequence-specific activity; and (iii) a plurality of blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the blocked nucleic acid molecules are not recognized by the RNP1s or RNP2s.
  • A fifth embodiment provides a cascade assay method for detecting a target nucleic acid of interest in a sample comprising the steps of: (a) providing a reaction mixture comprising: (i) a first ribonucleoprotein (RNP) complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (ii) a second ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; and (iii) a plurality of blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the blocked nucleic acid molecules cannot activate the RNP1 or the RNP2; (b) contacting the reaction mixture with the sample under conditions that allow the target nucleic acid of interest in the sample to bind to RNP1; wherein upon binding of the target nucleic acid of interest RNP1 becomes active initiating trans-cleavage of at least one of the blocked nucleic acid molecules thereby producing at least one unblocked nucleic acid molecule and the at least one unblocked nucleic acid molecule binds to RNP2 initiating cleavage of at least one further blocked nucleic acid molecule; and (c) detecting products of the cleavage, thereby detecting the target nucleic acid of interest in the sample.
  • In a sixth embodiment there is provided a kit for detecting a target nucleic acid of interest in a sample comprising: (i) a first ribonucleoprotein (RNP1) complex (RNP1) comprising a first nucleic acid-guided nuclease and a first gRNA, wherein the first gRNA comprises a sequence complementary to the target nucleic acid of interest; and wherein binding of the RNP1 complex to the target nucleic acid of interest activates cis-cleavage and trans-cleavage activity of the first nucleic acid-guided nuclease; (ii) a second ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; a (iii) plurality of blocked nucleic acid molecules comprising a sequence corresponding to the second gRNA, wherein trans-cleavage activity of the blocked nucleic acid molecules results in at least one unblocked nucleic acid molecule; and wherein the unblocked nucleic acid molecule activates trans-cleavage activity of the second nucleic acid-guided nuclease in at least one RNP2 initiating cleavage of more blocked nucleic acid molecules; and (iv) a reporter moiety, wherein the reporter molecule comprises a nucleic acid molecule and/or is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon trans-cleavage activity by the RNP1 or the RNP2, to identify the presence of the target nucleic acid of interest in the sample.
  • In some aspects of any one of the aforementioned embodiments, the first and/or second nucleic acid-guided nuclease is a Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, Cas13b nuclease; in some aspects, the first nucleic acid-guided nuclease can is a different nucleic acid-guided nuclease than the second nucleic acid-guided nuclease; in some aspects, the first and/or second nucleic acid-guided nuclease is a Type V nucleic acid-guided nuclease or a Type VI nucleic acid-guided nuclease and/or in some aspects, the first and/or second nucleic acid-guided nuclease comprises a RuvC nuclease domain or a RuvC-like nuclease domain and lacks an HNH nuclease domain.
  • In some aspects of any one of the aforementioned embodiments, the blocked nucleic acid molecules comprise a structure represented by any one of Formulas I-IV, wherein Formulas I-IV comprise in the 5′-to-3′ direction:

  • (a)A-(B-L)J-C-M-T-D  (Formula I);
      • wherein A is 0-15 nucleotides in length;
      • B is 4-12 nucleotides in length;
      • L is 3-25 nucleotides in length;
      • J is an integer between 1 and 10;
      • C is 4-15 nucleotides in length;
      • M is 1-25 nucleotides in length or is absent, wherein if M is absent then A-(B-L)J-C and T-D are separate nucleic acid strands;
      • T is 17-135 nucleotides in length and comprises at least 50% sequence complementarity to B and C; and
      • D is 0-10 nucleotides in length and comprises at least 50% sequence complementarity to A;

  • (b)D-T-T′-C-(L-B)J-A  (Formula II);
      • wherein D is 0-10 nucleotides in length;
      • T-T′ is 17-135 nucleotides in length;
      • T′ is 1-10 nucleotides in length and does not hybridize with T;
      • C is 4-15 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • L is 3-25 nucleotides in length and does not hybridize with T;
      • B is 4-12 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • J is an integer between 1 and 10;
      • A is 0-15 nucleotides in length and comprises at least 50% sequence complementarity to D;

  • (c)T-D-M-A-(B-L)J-C  (Formula III);
      • wherein T is 17-135 nucleotides in length;
      • D is 0-10 nucleotides in length;
      • M is 1-25 nucleotides in length or is absent, wherein if M is absent then T-D and A-(B-L)J-C are separate nucleic acid strands;
      • A is 0-15 nucleotides in length and comprises at least 50% sequence complementarity to D;
      • B is 4-12 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • L is 3-25 nucleotides in length;
      • J is an integer between 1 and 10; and
      • C is 4-15 nucleotides in length; or

  • (d)T-D-M-A-Lp-C  (Formula IV);
      • wherein T is 17-31 nucleotides in length (e.g., 17-100, 17-50, or 17-25);
      • D is 0-15 nucleotides in length;
      • M is 1-25 nucleotides in length;
      • A is 0-15 nucleotides in length and comprises a sequence complementary to D; and
      • L is 3-25 nucleotides in length;
      • p is 0 or 1;
      • C is 4-15 nucleotides in length and comprises a sequence complementary to T.
    And in Some Aspects,
      • (a) T of Formula I comprises at least 80% sequence complementarity to B and C;
      • (b) D of Formula I comprises at least 80% sequence complementarity to A;
      • (c) C of Formula II comprises at least 80% sequence complementarity to T;
      • (d) B of Formula II comprises at least 80% sequence complementarity to T;
      • (e) A of Formula II comprises at least 80% sequence complementarity to D;
      • (f) A of Formula III comprises at least 80% sequence complementarity to D;
      • (g) B of Formula III comprises at least 80% sequence complementarity to T;
      • (h) A of Formula IV comprises at least 80% sequence complementarity to D; and/or
      • (i) C of Formula IV comprises at least 80% sequence complementarity to T.
  • In some aspects of the aforementioned embodiments, the blocked nucleic acid molecules comprise a first sequence complementary to the second gRNA and a second sequence not complementary to the second gRNA, wherein the second sequence at least partially hybridizes to the first sequence resulting in at least one loop.
  • In some aspects of the aforementioned embodiments, the reaction mixture comprises about 1 fM to about 10 μM of the RNP1 and in some aspects the reaction mixture comprises about 1 fM to about 1 mM of the RNP2.
  • In some aspects of the aforementioned embodiments, the reaction mixture comprises at least two different RNP1s, wherein different RNP1s comprise different gRNA sequences, and in some aspects the reaction mixture comprises 2 to 10000 different RNP1s, or 2 to 1000 different RNP1s, or 2 to 100 different RNP1s, or 2 to 10 different RNP1s.
  • In some aspects of the aforementioned embodiments, the blocked nucleic acid molecules include the sequence of any one of SEQ ID NOs: 14-1421.
  • In some aspects of the aforementioned embodiments, the blocked nucleic acid molecules are circular, and in some aspects the blocked nucleic acid molecules are linear.
  • In some aspects the Kd of the blocked nucleic acid molecules to the RNP2 is about 105-fold greater, 106-fold greater, 107-fold greater, 108-fold greater, 109-fold greater, 1010-fold greater or more than the Kd of unblocked nucleic acid molecules.
  • In some aspects of the aforementioned embodiments, the target nucleic acid of interest is of bacterial, viral, fungal, mammalian or plant origin, and in some aspects, the sample may include peripheral blood, serum, plasma, ascites, urine, cerebrospinal fluid (CSF), sputum, saliva, bone marrow, synovial fluid, aqueous humor, amniotic fluid, cerumen, breast milk, broncheoalveolar lavage fluid, semen, prostatic fluid, cowper's fluid or pre-ejaculatory fluid, sweat, fecal matter, hair, tears, cyst fluid, pleural and peritoneal fluid, pericardial fluid, lymph, chyme, chyle, bile, interstitial fluid, menses, pus, sebum, vomit, vaginal secretions, mucosal secretion, stool water, pancreatic juice, lavage fluids from sinus cavities, bronchopulmonary aspirates, blastocyl cavity fluid, and umbilical cord blood; food; agricultural products; pharmaceuticals; cosmetics, nutraceuticals; personal care products; environmental substances such as soil, water, or air; industrial sites and products; or manufactured or natural chemicals and compounds.
  • In some aspects of the aforementioned embodiments, the reaction mixture further comprises a reporter moiety: wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule that is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2. In some aspects, the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1; in some aspects, the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or optical signal; and/or in some aspects, the reporter moiety comprises a modified nucleoside or nucleotide including but not limited to locked nucleic acids (LNAs), peptide nucleic acids (PNAs), 2′-O-methyl (2′-O-Me) modified nucleosides, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bonds.
  • In some aspects of the aforementioned embodiments, the blocked nucleic acid molecules do not comprise a PAM sequence, yet in other aspects, the blocked nucleic acid molecules comprise a PAM sequence, and in some aspects the PAM sequence is disposed between the first and second sequences, wherein the first sequence is 5′ to the PAM sequence.
  • In some aspects of the aforementioned embodiments, the blocked nucleic acid molecule is a blocked primer molecule.
  • In a seventh embodiment of the disclosure, there is provided a blocked nucleic acid molecule comprising: a first region recognized by a ribonucleoprotein (RNP) complex; one or more second regions not complementary to the first region; and one or more third regions complementary and hybridized to the first region, wherein cleavage of the one or more second regions results in dehybridization of the third region from the first region, resulting in an unblocked nucleic acid molecule.
  • An eighth embodiment provides a method of unblocking a blocked nucleic acid comprising: (a) providing a blocked nucleic acid molecule comprising: a first region recognized by a ribonucleoprotein (RNP) complex; one or more second regions not complementary to the first region; and one or more third regions complementary and hybridized to the first region, wherein cleavage of the one or more second regions results in dehybridization of the third region from the first region, resulting in an unblocked nucleic acid molecule; and (b) initiating cleavage of the one or more second regions, wherein the blocked nucleic acid molecule becomes an unblocked nucleic acid molecule.
  • A ninth embodiment provides a composition of matter comprising: a first region recognized by a ribonucleoprotein (RNP) complex; one or more second regions of not complementary to the first region; and one or more third regions complementary and hybridized to the first region, wherein cleavage of the one or more second regions results in dehybridization of the third region from the first region, resulting in an unblocked nucleic acid molecule; and the RNP complex comprising a gRNA that is complementary to the first region and a nucleic acid-guided nuclease, wherein the nucleic acid-guided nuclease exhibits both sequence-specific and non-sequence-specific nuclease activity.
  • Additionally, a tenth embodiment of the disclosure provides a cascade assay method of detecting a target nucleic acid of interest in a sample comprising the steps of: (a) providing a reaction mixture comprising: (i) a first ribonucleoprotein (RNP) complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (ii) a second ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; and (iii) a plurality of linear blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the linear blocked nucleic acid molecules cannot activate the RNP1 or the RNP2; (b) contacting the reaction mixture with the sample under conditions that allow the target nucleic acid of interest in the sample to bind to RNP1; wherein upon binding of the target nucleic acid of interest RNP1 becomes active initiating trans-cleavage of at least one of the linear blocked nucleic acid molecules thereby producing at least one linear unblocked nucleic acid molecule and the at least one linear unblocked nucleic acid molecule to RNP2 initiating cleavage of at least one further linear blocked nucleic acid molecule; and (c) detecting the cleavage products, thereby detecting the target nucleic acid of interest in the sample.
  • In some aspects of any one of the aforementioned embodiments, the first and/or second nucleic acid-guided nuclease is a Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, Cas13b nuclease; in some aspects, the first nucleic acid-guided nuclease can is a different nucleic acid-guided nuclease than the second nucleic acid-guided nuclease; in some aspects, the first and/or second nucleic acid-guided nuclease is a Type V nucleic acid-guided nuclease or a Type VI nucleic acid-guided nuclease and/or in some aspects, the first and/or second nucleic acid-guided nuclease comprises a RuvC nuclease domain or a RuvC-like nuclease domain and lacks an HNH nuclease domain.
  • In some aspects, the blocked nucleic acid molecule comprises a structure represented by any one of Formulas I-IV, wherein Formulas I-IV are in the 5′-to-3′ direction:

  • (a)A-(B-L)J-C-M-T-D  (Formula I);
      • wherein A is 0-15 nucleotides in length;
      • B is 4-12 nucleotides in length;
      • L is 3-25 nucleotides in length;
      • J is an integer between 1 and 10;
      • C is 4-15 nucleotides in length;
      • M is 1-25 nucleotides in length or is absent, wherein if M is absent then A-(B-L)J-C and T-D are separate nucleic acid strands;
      • T is 17-135 nucleotides in length and comprises at least 50% sequence complementarity to B and C; and
      • D is 0-10 nucleotides in length and comprises at least 50% sequence complementarity to A;

  • (b)D-T-T′-C-(L-B)J-A  (Formula II);
      • wherein D is 0-10 nucleotides in length;
      • T-T′ is 17-135 nucleotides in length;
      • T′ is 1-10 nucleotides in length and does not hybridize with T;
      • C is 4-15 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • L is 3-25 nucleotides in length and does not hybridize with T;
      • B is 4-12 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • J is an integer between 1 and 10;
      • A is 0-15 nucleotides in length and comprises at least 50% sequence complementarity to D;

  • (c)T-D-M-A-(B-L)J-C  (Formula III);
      • wherein T is 17-135 nucleotides in length;
      • D is 0-10 nucleotides in length;
      • M is 1-25 nucleotides in length or is absent, wherein if M is absent then T-D and A-(B-L)J-C are separate nucleic acid strands;
      • A is 0-15 nucleotides in length and comprises at least 50% sequence complementarity to D;
      • B is 4-12 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • L is 3-25 nucleotides in length;
      • J is an integer between 1 and 10; and
      • C is 4-15 nucleotides in length; or

  • (d)T-D-M-A-Lp-C  (Formula IV);
      • wherein T is 17-31 nucleotides in length (e.g., 17-100, 17-50, or 17-25);
      • D is 0-15 nucleotides in length;
      • M is 1-25 nucleotides in length;
      • A is 0-15 nucleotides in length and comprises a sequence complementary to D; and
      • L is 3-25 nucleotides in length;
      • p is 0 or 1;
      • C is 4-15 nucleotides in length and comprises a sequence complementary to T.
    Further
      • (a) T of Formula I comprises at least 80% sequence complementarity to B and C;
      • (b) D of Formula I comprises at least 80% sequence complementarity to A;
      • (c) C of Formula II comprises at least 80% sequence complementarity to T;
      • (d) B of Formula II comprises at least 80% sequence complementarity to T;
      • (e) A of Formula II comprises at least 80% sequence complementarity to D;
      • (f) A of Formula III comprises at least 80% sequence complementarity to D;
      • (g) B of Formula III comprises at least 80% sequence complementarity to T;
      • (h) A of Formula IV comprises at least 80% sequence complementarity to D; and/or
      • (i) C of Formula IV comprises at least 80% sequence complementarity to T.
  • In some aspects of the aforementioned embodiments, the blocked nucleic acid molecule comprises a modified nucleoside or nucleotide, including but not limited to a locked nucleic acid (LNA), peptide nucleic acid (PNA), 2′-O-methyl (2′-O-Me) modified nucleoside, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bond. In some aspects, the blocked nucleic acid molecule includes the sequence of any one of SEQ ID NOs: 14-1421; the blocked nucleic acid molecule is a blocked primer molecule; the blocked nucleic acid molecule does not comprise a PAM sequence; and/or in some aspects the blocked nucleic acid molecule comprises a PAM sequence, and the PAM sequence is disposed between the first and second sequences, wherein the first sequence is 5′ to the PAM sequence.
  • In some aspects of the aforementioned embodiments, the reaction mixture further comprises a reporter moiety: wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule that is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2. In some aspects, the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1; in some aspects, the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or optical signal; and/or in some aspects, the reporter moiety comprises a modified nucleoside or nucleotide including but not limited to locked nucleic acids (LNAs), peptide nucleic acids (PNAs), 2′-O-methyl (2′-O-Me) modified nucleosides, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bonds.
  • In some aspects, the Kd of the blocked nucleic acid molecules to the RNP2 is about 105-fold greater, 106-fold greater, 107-fold greater, 108-fold greater, 109-fold greater, 1010-fold greater or more than the Kd of unblocked nucleic acid molecules.
  • In an eleventh embodiment, there is provided composition of matter comprising a ribonucleoprotein (RNP) complex and a blocked nucleic acid molecule, wherein the blocked nucleic acid molecule is represented by any one of Formula I-IV, wherein Formulas I-IV comprise in the 5′-to-3′ direction comprises:

  • (a)A-(B-L)J-C-M-T-D  (Formula I);
      • wherein A is 0-15 nucleotides in length;
      • B is 4-12 nucleotides in length;
      • L is 3-25 nucleotides in length;
      • J is an integer between 1 and 10;
      • C is 4-15 nucleotides in length;
      • M is 1-25 nucleotides in length or is absent, wherein if M is absent then A-(B-L)J-C and T-D are separate nucleic acid strands;
      • T is 17-135 nucleotides in length and comprises at least 50% sequence complementarity to B and C; and
      • D is 0-10 nucleotides in length and comprises at least 50% sequence complementarity to A;

  • (b)D-T-T′-C-(L-B)J-A  (Formula II);
      • wherein D is 0-10 nucleotides in length;
      • T-T′ is 17-135 nucleotides in length;
      • T′ is 1-10 nucleotides in length and does not hybridize with T;
      • C is 4-15 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • L is 3-25 nucleotides in length and does not hybridize with T;
      • B is 4-12 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • J is an integer between 1 and 10;
      • A is 0-15 nucleotides in length and comprises at least 50% sequence complementarity to D;

  • (c)T-D-M-A-(B-L)J-C  (Formula III);
      • wherein T is 17-135 nucleotides in length;
      • D is 0-10 nucleotides in length;
      • M is 1-25 nucleotides in length or is absent, wherein if M is absent then T-D and
      • A-(B-L)J-C are separate nucleic acid strands;
      • A is 0-15 nucleotides in length and comprises at least 50% sequence complementarity to D;
      • B is 4-12 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • L is 3-25 nucleotides in length;
      • J is an integer between 1 and 10; and
      • C is 4-15 nucleotides in length; or

  • (d)T-D-M-A-Lp-C  (Formula IV);
      • wherein T is 17-31 nucleotides in length (e.g., 17-100, 17-50, or 17-25);
      • D is 0-15 nucleotides in length;
      • M is 1-25 nucleotides in length;
      • A is 0-15 nucleotides in length and comprises a sequence complementary to D; and
      • L is 3-25 nucleotides in length;
      • p is 0 or 1;
      • C is 4-15 nucleotides in length and comprises a sequence complementary to T.
  • In Some Aspects of this Embodiment,
  • T of Formula I comprises at least 80% sequence complementarity to B and C;
      • (a) D of Formula I comprises at least 80% sequence complementarity to A;
      • (b) C of Formula II comprises at least 80% sequence complementarity to T;
      • (c) B of Formula II comprises at least 80% sequence complementarity to T;
      • (d) A of Formula II comprises at least 80% sequence complementarity to D;
      • (e) A of Formula III comprises at least 80% sequence complementarity to D;
      • (f) B of Formula III comprises at least 80% sequence complementarity to T;
      • (g) A of Formula IV comprises at least 80% sequence complementarity to D; and/or
      • (h) C of Formula IV comprises at least 80% sequence complementarity to T.
  • In some aspects of the aforementioned embodiment, the blocked primer molecules include the sequence of any one of SEQ ID NOs: 14-1421.
  • In some aspects of the aforementioned embodiment, the RNP complex comprises a Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, Cas13b nuclease; in some aspects, the RNP complex comprises a Type V nucleic acid-guided nuclease or a Type VI nucleic acid-guided nuclease and/or in some aspects, the RNP complex comprises a RuvC nuclease domain or a RuvC-like nuclease domain and lacks an HNH nuclease domain.
  • In some aspects of the aforementioned embodiment, the blocked nucleic acid molecule comprises a modified nucleoside or nucleotide comprises a locked nucleic acid (LNA), peptide nucleic acid (PNA), 2′-O-methyl (2′-O-Me) modified nucleoside, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bond.
  • In some aspects, the blocked nucleic acid molecule does not comprise a PAM sequence, and in other aspects, the blocked nucleic acid molecule comprises a PAM sequence where the PAM sequence is disposed between the first and second sequences, wherein the first sequence is 5′ to the PAM sequence. In some aspects, the blocked nucleic acid molecule is a blocked primer molecule.
  • In some aspects of the aforementioned embodiment(s), the composition of matter further comprises a reporter moiety: wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule that is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2. In some aspects, the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1; in some aspects, the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or optical signal; and/or in some aspects, the reporter moiety comprises a modified nucleoside or nucleotide including but not limited to locked nucleic acids (LNAs), peptide nucleic acids (PNAs), 2′-O-methyl (2′-O-Me) modified nucleosides, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bonds.
  • Yet another embodiment provides a reaction mixture comprising: (i) a first ribonucleoprotein (RNP) complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (ii) a second ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (iii) a plurality of template molecules comprising a sequence corresponding to the second gRNA; (iv) a plurality of blocked primer molecules comprising a sequence complementary to the template molecules, wherein the blocked nucleic acid molecules cannot be extended by a polymerase; and (v) a polymerase and a plurality of nucleotides.
  • Another embodiment provides a cascade assay method for detecting a target nucleic acid of interest in a sample comprising: (a) providing a reaction mixture comprising: (i) a first ribonucleoprotein (RNP) complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (ii) a second ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second nucleic acid-guided nuclease exhibits both cis-cleavage activity and trans-cleavage activity; (iii) a plurality of template molecules comprising a sequence corresponding to the second gRNA; (iv) a plurality of blocked primer molecules comprising a sequence complementary to the template molecules, wherein the blocked nucleic acid molecules cannot be extended by a polymerase; and (v) a polymerase and a plurality of nucleotides; (b) contacting the reaction mixture with the sample under conditions that allow target nucleic acids of interest in the sample to bind to the first gRNA, wherein: upon binding of the target nucleic acid of interest, the RNP1 active cleaving at least one of the blocked primer molecules, thereby producing at least one unblocked primer molecule that can be extended by the polymerase; at least one unblocked primer molecule binds to one of the template molecules and is extended by the polymerase and nucleotides to form at least one synthesized activating molecule having a sequence complementary to the second gRNA; at least one synthesized activating molecule binds to the second gRNA, and RNP2 becomes active cleaving at least one further blocked primer molecule; and detecting the cleavage products of step (b), thereby detecting the target nucleic acid of interest in the sample.
  • In some aspects the Kd of the blocked nucleic acid molecules to the RNP2 is about 105-fold greater, 106-fold greater, 107-fold greater, 108-fold greater, 109-fold greater, 1010-fold greater or more than the Kd of unblocked nucleic acid molecules.
  • A further embodiment provides a kit for detecting a target nucleic acid of interest in a sample comprising: (i) a first ribonucleoprotein complex (RNP1) comprising a first nucleic acid-guided nuclease and a first gRNA, wherein the first gRNA comprises a sequence complementary to the target nucleic acid of interest; and wherein binding of the RNP1 complex to the target nucleic acid of interest activates cis-cleavage and trans-cleavage activity of the first nucleic acid-guided nuclease; (ii) a second ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; (iii) a plurality of template molecules comprising a non-target sequence to the second gRNA; (iv) a polymerase and nucleotides; (v) a plurality of blocked primer molecules comprising a sequence complementary to the template molecules, wherein the blocked primer molecule cannot be extended by the polymerase, trans-cleavage of the blocked primer molecules results in at least one unblocked primer molecule; and wherein the unblocked primer molecule can bind to at least one the template molecule and be extended by the polymerase to form a synthesized activating molecule; and (vi) a reporter moiety, wherein the reporter moiety comprises a nucleic acid molecule and/or is operably linked to the blocked primer molecule and produces a detectable signal upon trans-cleavage activity of the blocked primer molecule by the RNP1 or the RNP2, to identify the presence of the target nucleic acid of interest in the sample.
  • In any of these embodiments, the first and/or second nucleic acid-guided nuclease in the reaction mixture is a Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, Cas13b nuclease; in some aspects, the first nucleic acid-guided nuclease is a different nucleic acid-guided nuclease than the second nucleic acid-guided nuclease; in some aspects the first and/or second nucleic acid-guided nuclease is a Type V nucleic acid-guided nuclease or a Type VI nucleic acid-guided nuclease; and in some aspects, the first and/or second nucleic acid-guided nuclease comprises a RuvC nuclease domain or a RuvC-like nuclease domain and lacks an HNH nuclease domain.
  • In some aspects the blocked primer molecules comprise a first sequence complementary to the second gRNA and a second sequence not complementary to the second gRNA, wherein the second sequence at least partially hybridizes to the first sequence resulting in at least one loop; and in some aspects, the blocked primer molecules comprise a structure represented by any one of Formulas I-IV, wherein Formulas I-IV are in the 5′-to-3′ direction:

  • (a)A-(B-L)J-C-M-T-D  (Formula I);
      • wherein A is 0-15 nucleotides in length;
      • B is 4-12 nucleotides in length;
      • L is 3-25 nucleotides in length;
      • J is an integer between 1 and 10;
      • C is 4-15 nucleotides in length;
      • M is 1-25 nucleotides in length or is absent, wherein if M is absent then A-(B-L)J-C and T-D are separate nucleic acid strands;
      • T is 17-135 nucleotides in length and comprises at least 50% sequence complementarity to B and C; and
      • D is 0-10 nucleotides in length and comprises at least 50% sequence complementarity to A;

  • (b)D-T-T′-C-(L-B)J-A  (Formula II);
      • wherein D is 0-10 nucleotides in length;
      • T-T′ is 17-135 nucleotides in length;
      • T′ is 1-10 nucleotides in length and does not hybridize with T;
      • C is 4-15 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • L is 3-25 nucleotides in length and does not hybridize with T;
      • B is 4-12 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • J is an integer between 1 and 10;
      • A is 0-15 nucleotides in length and comprises at least 50% sequence complementarity to D;

  • (c)T-D-M-A-(B-L)J-C  (Formula III);
      • wherein T is 17-135 nucleotides in length;
      • D is 0-10 nucleotides in length;
      • M is 1-25 nucleotides in length or is absent, wherein if M is absent then T-D and A-(B-L)J-C are separate nucleic acid strands;
      • A is 0-15 nucleotides in length and comprises at least 50% sequence complementarity to D;
      • B is 4-12 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • L is 3-25 nucleotides in length;
      • J is an integer between 1 and 10; and
      • C is 4-15 nucleotides in length; or

  • (d)T-D-M-A-Lp-C  (Formula IV);
      • wherein T is 17-31 nucleotides in length (e.g., 17-100, 17-50, or 17-25);
      • D is 0-15 nucleotides in length;
      • M is 1-25 nucleotides in length;
      • A is 0-15 nucleotides in length and comprises a sequence complementary to D; and
      • L is 3-25 nucleotides in length;
      • p is 0 or 1;
      • C is 4-15 nucleotides in length and comprises a sequence complementary to T.
    In Some Aspects,
      • (a) T of Formula I comprises at least 80% sequence complementarity to B and C;
      • (b) D of Formula I comprises at least 80% sequence complementarity to A;
      • (c) C of Formula II comprises at least 80% sequence complementarity to T;
      • (d) B of Formula II comprises at least 80% sequence complementarity to T;
      • (e) A of Formula II comprises at least 80% sequence complementarity to D;
      • (f) A of Formula III comprises at least 80% sequence complementarity to D;
      • (g) B of Formula III comprises at least 80% sequence complementarity to T;
      • (h) A of Formula IV comprises at least 80% sequence complementarity to D; and/or
      • (i) C of Formula IV comprises at least 80% sequence complementarity to T.
  • In some aspects the reaction mixture comprises about 1 fM to about 10 μM of the RNP1, and in some aspects, the reaction mixture of claim 1, wherein the reaction mixture comprises about 1 fM to about 1 mM of the RNP2.
  • In some aspects of these embodiments, the reaction mixture comprises at least two different RNP1s, wherein different RNP1s comprise different gRNA sequences, and in some aspects, the reaction mixture comprises 2 to 10000 different RNP1s, 2 to 1000 different RNP1s, 2 to 100 different RNP1s, or 2 to 10 different RNP1s.
  • In some aspects the blocked primer molecules include the sequence of any one of SEQ ID NOs: 14-1421. In some aspects the Kd of the blocked primer molecules to the RNP2 is about 105-fold greater, 106-fold greater, 107-fold greater, 108-fold greater, 109-fold greater, 1010-fold greater or more than the Kd of unblocked primer molecules.
  • In some aspects of the aforementioned embodiments, the reaction mixture further comprises a reporter moiety: wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule that is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2. In some aspects, the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1; in some aspects, the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or optical signal; and/or in some aspects, the reporter moiety comprises a modified nucleoside or nucleotide including but not limited to locked nucleic acids (LNAs), peptide nucleic acids (PNAs), 2′-O-methyl (2′-O-Me) modified nucleosides, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bonds.
  • In some aspects of the aforementioned embodiments, the template molecules do not comprise a complement of a PAM sequence, and in some aspects, the template molecules comprise a complement of a PAM sequence. In some aspects, the template molecules are single-stranded. In some aspects, the template molecules are linear; in yet other aspects the template molecules are circularized. In some aspects comprising circular blocked nucleic acid molecules, at least one of the plurality of circular high Kd blocked nucleic acid molecules comprises a first region comprising a sequence specific to the second guide RNA and a second region comprising a nuclease-cleavable sequence; where at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant DNA sequence in the first region and a nuclease-cleavable DNA sequence in the second region; at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant RNA sequence in the first region and a nuclease-cleavable DNA and RNA sequence in the second region; at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant DNA sequence in the first region and a nuclease-cleavable DNA and RNA sequence in the second region; or at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant RNA sequence in the first region and a nuclease-cleavable RNA sequence in the second region.
  • In some aspects the polymerase comprises strand displacement activity and/or 3′-to-5′ exonuclease activity, and in some aspects, the polymerase is Phi29 polymerase.
  • Yet another embodiment provides a composition of matter comprising a circular high Kd blocked nucleic acid molecule comprising: a region recognized by a gRNA in an RNP complex; a region comprising a sequence cleavable by a nucleic acid-guided nuclease in the RNP complex; and wherein the circular high Kd blocked nucleic acid molecule cannot activate the RNP complex, and wherein the circular high Kd blocked nucleic molecules are high Kd in relation to binding to the RNP complex.
  • A further embodiment provides a method of unblocking a circular high Kd blocked nucleic acid molecule comprising the steps of: (a) providing a circular high Kd blocked nucleic acid molecule comprising: a first region recognized by a gRNA in an RNP complex; a second region comprising a sequence cleavable by a nucleic acid-guided nuclease in the RNP complex, wherein the circular high Kd blocked nucleic acid molecule cannot substantially activate the RNP complex; and (b) initiating cleavage of the second region by the nucleic acid-guided nuclease in the RNP complex, wherein the circular high Kd blocked nucleic acid molecule becomes a linear low Kd unblocked nucleic acid molecule, and wherein the circular high Kd blocked nucleic acid molecules are high Kd and linear low Kd unblocked nucleic acid molecules are high Kd and low Kd in relation to binding the RNP complex.
  • Also provided as an embodiment is a cascade assay method of detecting a target nucleic acid of interest in a sample comprising the steps of: (a) providing a reaction mixture comprising: (i) a first ribonucleoprotein (RNP) complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest; (ii) a second ribonucleoprotein (RNP2) complex comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid molecule; and (iii) a plurality of circular blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the circular blocked nucleic acid molecules cannot activate the RNP1 complex or the RNP2 complex; (b) contacting the reaction mixture with the sample under conditions that allow the target nucleic acid of interest in the sample to bind to RNP1; wherein upon binding of the target nucleic acid of interest, RNP1 becomes active initiating trans-cleavage of at least one of the circular blocked nucleic acid molecules thereby producing at least one linear unblocked nucleic acid molecule; the at least one linear unblocked nucleic acid molecule binds to RNP2 initiating cleavage of at least one further circular blocked nucleic acid molecule; and (c) detecting the cleavage products, thereby detecting the target nucleic acid of interest in the sample.
  • In some aspects, the RNP complex (either RNP1 or RNP2) comprises a nucleic acid-guided nuclease selected from Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, or Cas13b, and in some aspects, the RNP complex comprises a nucleic acid-guided nuclease that is a Type V nucleic acid-guided nuclease or a Type VI nucleic acid-guided nuclease; the RNP complex comprises a nucleic acid-guided nuclease that exhibits both cis-cleavage and trans-cleavage activity; and/or the RNP complex comprises a nucleic acid-guided nuclease comprising a RuvC nuclease domain or a RuvC-like nuclease domain but lacks an HNH nuclease domain.
  • In some aspects of any embodiments comprising circular high Kd blocked nucleic acid molecules, the circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant DNA sequence in the first region and a nuclease-cleavable DNA sequence in the second region; the circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant RNA sequence in the first region and a nuclease-cleavable DNA and RNA sequence in the second region; the circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant DNA sequence in the first region and a nuclease-cleavable DNA and RNA sequence in the second region; or the circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant RNA sequence in the first region and a nuclease-cleavable RNA sequence in the second region.
  • In some aspects of these embodiments, the circular high Kd blocked nucleic acid molecule comprises 5′ and 3′ ends hybridized to each other and DNA, RNA, LNA or PNA bases having a high Tm; and in some aspects, the Kd of the circular high Kd blocked nucleic acid molecules to the RNP complex or RNP2 is about 105-fold greater, 106-fold greater, 107-fold greater, 108-fold greater, 109-fold greater, 1010-fold greater or more than the Kd of unblocked circular high Kd blocked nucleic acid molecules.
  • In some aspects the circular high Kd blocked nucleic acid molecule comprises a modified nucleoside or nucleotide, including but not limited to a locked nucleic acid (LNA), a peptide nucleic acid (PNA), a 2′-O-methyl (2′-O-Me) modified nucleoside, a 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bond.
  • In some aspects the circular high Kd blocked nucleic acid molecule is a single-stranded, double-stranded, or partially double-stranded molecule comprising one or more different combinations of DNA-DNA, DNA-RNA or RNA-RNA hybrid molecules. In some aspects the circular high Kd blocked nucleic acid molecule is a circular high Kd primer molecule. In some aspects the circular high Kd blocked nucleic acid molecule does not comprise a PAM sequence or the circular high Kd blocked nucleic acid molecule comprises a PAM sequence.
  • In some aspects of the aforementioned embodiments, the compositions of matter or reaction further comprises a reporter moiety wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule that is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2. In some aspects, the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1; in some aspects, the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or optical signal; and/or in some aspects, the reporter moiety comprises a modified nucleoside or nucleotide including but not limited to locked nucleic acids (LNAs), peptide nucleic acids (PNAs), 2′-O-methyl (2′-O-Me) modified nucleosides, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bonds.
  • Yet another embodiment provides a composition of matter comprising: (a) a first preassembled ribonucleoprotein complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA that is specific to a target nucleic acid of interest, wherein the first nucleic acid-guided nuclease exhibits cis-cleavage activity and trans-cleavage activity; (b) a second preassembled ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second guide RNA, wherein the second nucleic acid-guided nuclease exhibits cis-cleavage activity and trans-cleavage activity; and (c) a plurality of circular high Kd blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the circular high Kd blocked nucleic acid molecules are not recognized by the RNP1 or RNP2, and wherein the circular high Kd blocked nucleic acid molecules are high Kd in relation to binding to RNP2.
  • Another embodiment provides a composition of matter comprising: (a) a first preassembled ribonucleoprotein complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA that is specific to a target nucleic acid of interest, wherein the first nucleic acid-guided nuclease exhibits cis-cleavage activity and trans-cleavage activity; (b) a second preassembled ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second guide RNA, wherein the second nucleic acid-guided nuclease exhibits cis-cleavage activity and trans-cleavage activity; and (c) a plurality of engineered linear high Kd blocked nucleic acid molecules comprising a first sequence complementary to the second gRNA, wherein the linear high Kd blocked nucleic acid molecules are not recognized by the RNP1 and RNP2, and wherein the linear high Kd blocked nucleic acid molecules are high Kd in relation to binding to the RNP2.
  • Yet another embodiment provides a composition of matter comprising: (a) a first preassembled ribonucleoprotein complex (RNP1) comprising a first nucleic acid-guided nuclease and a first guide RNA that is specific to a target nucleic acid of interest, wherein the first nucleic acid-guided nuclease exhibits cis-cleavage activity and trans-cleavage activity; (b) a second preassembled ribonucleoprotein complex (RNP2) comprising a second nucleic acid-guided nuclease and a second guide RNA, wherein the second nucleic acid-guided nuclease exhibits cis-cleavage activity and trans-cleavage activity; and (c) a plurality of engineered high Kd blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the high Kd blocked nucleic acid molecules are not recognized by the RNP1 and RNP2, and wherein the high Kd blocked nucleic acid molecules are high Kd in relation to binding to the RNP complex.
  • In aspects of any one of the foregoing embodiments, the high Kd blocked nucleic acid molecule comprises DNA, RNA, LNA or PNA bases having a high Tm; the 5′ and 3′ ends of the high Kd blocked nucleic acid molecule comprise phosphorothioate bonds (PS); high Kd blocked nucleic acid molecule comprises one or more different combinations of DNA-DNA, DNA-RNA or RNA-RNA hybrid molecules; and/or the high Kd blocked nucleic acid molecule comprises a nucleic acid region comprising nanoparticles attached thereto, wherein the nanoparticles provide steric hindrance to internalization in RNP2 and block RNP2 activation until cleavage and removal of the nucleic acid region comprising the nanoparticles.
  • In other aspects, the first and/or second nucleic acid-guided nuclease is a Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, Cas13b nuclease; in some aspects, the first nucleic acid-guided nuclease can is a different nucleic acid-guided nuclease than the second nucleic acid-guided nuclease; in some aspects, the first and/or second nucleic acid-guided nuclease is a Type V nucleic acid-guided nuclease or a Type VI nucleic acid-guided nuclease and/or in some aspects, the first and/or second nucleic acid-guided nuclease comprises a RuvC nuclease domain or a RuvC-like nuclease domain and lacks an HNH nuclease domain.
  • Aspects also include the composition of matter comprises about 1 fM to about 10 μM of the RNP1; and/or the composition of matter comprises about 1 fM to about 1 mM of the RNP2.
  • In some aspects the composition of matter comprises at least two different RNP1 complex species, wherein different RNP1s comprise different gRNA sequences; and in some aspects the composition comprises 2 to 10000 different RNP1s, 2 to 1000 different RNP1s, 2 to 100 different RNP1s, or 2 to 10 different RNP1s.
  • In some aspects the RNP2 recognizes a PAM sequence, and in other aspects the RNP2 complex does not recognize a PAM sequence.
  • In some aspects of the aforementioned embodiments, the composition of matter further comprises a reporter moiety, wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule that is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2. In some aspects, the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1; in some aspects, the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or optical signal; and/or in some aspects, the reporter moiety comprises a modified nucleoside or nucleotide including but not limited to locked nucleic acids (LNAs), peptide nucleic acids (PNAs), 2′-O-methyl (2′-O-Me) modified nucleosides, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bonds.
  • In some aspects the high Kd blocked nucleic acid molecule is a high Kd blocked primer molecule.
  • In some aspects the linear high Kd blocked nucleic acid molecule is converted to a linear low Kd blocked nucleic acid molecule upon trans-cleavage by RNP1 and/or RNP2. In some aspects the Kd of the blocked nucleic acid molecules to the RNP2 is about 105-fold greater, 106-fold greater, 107-fold greater, 108-fold greater, 109-fold greater, 1010-fold greater or more than the Kd of unblocked nucleic acid molecules.
  • In some aspects of the compositions of matter comprising circular blocked nucleic acid molecules, at least one of the plurality of circular high Kd blocked nucleic acid molecules comprises a first region comprising a sequence specific to the second guide RNA and a second region comprising a nuclease-cleavable sequence; where at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant DNA sequence in the first region and a nuclease-cleavable DNA sequence in the second region; at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant RNA sequence in the first region and a nuclease-cleavable DNA and RNA sequence in the second region; at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant DNA sequence in the first region and a nuclease-cleavable DNA and RNA sequence in the second region; or at least one circular high Kd blocked nucleic acid molecule comprises a nuclease-resistant RNA sequence in the first region and a nuclease-cleavable RNA sequence in the second region.
  • In some aspects of the compositions of matter comprising linear blocked nucleic acid molecules, the linear high Kd nucleic acid molecules comprise a structure represented by any one of Formulas I-IV, where Formulas I-IV comprise in the 5′-to-3′ direction:

  • (a)A-(B-L)J-C-M-T-D  (Formula I);
      • wherein A is 0-15 nucleotides in length;
      • B is 4-12 nucleotides in length;
      • L is 3-25 nucleotides in length;
      • J is an integer between 1 and 10;
      • C is 4-15 nucleotides in length;
      • M is 1-25 nucleotides in length or is absent, wherein if M is absent then A-(B-L)J-C and T-D are separate nucleic acid strands;
      • T is 17-135 nucleotides in length and comprises at least 50% sequence complementarity to B and C; and
      • D is 0-10 nucleotides in length and comprises at least 50% sequence complementarity to A;

  • (b)D-T-T′-C-(L-B)J-A  (Formula II);
      • wherein D is 0-10 nucleotides in length;
      • T-T′ is 17-135 nucleotides in length;
      • T′ is 1-10 nucleotides in length and does not hybridize with T;
      • C is 4-15 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • L is 3-25 nucleotides in length and does not hybridize with T;
      • B is 4-12 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • J is an integer between 1 and 10;
      • A is 0-15 nucleotides in length and comprises at least 50% sequence complementarity to D;

  • (c)T-D-M-A-(B-L)J-C  (Formula III);
      • wherein T is 17-135 nucleotides in length;
      • D is 0-10 nucleotides in length;
      • M is 1-25 nucleotides in length or is absent, wherein if M is absent then T-D and A-(B-L)J-C are separate nucleic acid strands;
      • A is 0-15 nucleotides in length and comprises at least 50% sequence complementarity to D;
      • B is 4-12 nucleotides in length and comprises at least 50% sequence complementarity to T;
      • L is 3-25 nucleotides in length;
      • J is an integer between 1 and 10; and
      • C is 4-15 nucleotides in length; or

  • (d)T-D-M-A-Lp-C  (Formula IV);
      • wherein T is 17-31 nucleotides in length (e.g., 17-100, 17-50, or 17-25);
      • D is 0-15 nucleotides in length;
      • M is 1-25 nucleotides in length;
      • A is 0-15 nucleotides in length and comprises a sequence complementary to D; and
      • L is 3-25 nucleotides in length;
      • p is 0 or 1;
      • C is 4-15 nucleotides in length and comprises a sequence complementary to T.
    And in Some Aspects,
      • (a) T of Formula I comprises at least 80% sequence complementarity to B and C;
      • (b) D of Formula I comprises at least 80% sequence complementarity to A;
      • (c) C of Formula II comprises at least 80% sequence complementarity to T;
      • (d) B of Formula II comprises at least 80% sequence complementarity to T;
      • (e) A of Formula II comprises at least 80% sequence complementarity to D;
      • (f) A of Formula III comprises at least 80% sequence complementarity to D;
      • (g) B of Formula III comprises at least 80% sequence complementarity to T;
      • (h) A of Formula IV comprises at least 80% sequence complementarity to D; and/or
      • (i) C of Formula IV comprises at least 80% sequence complementarity to T.
  • In some aspects, at least one of the linear blocked nucleic acid molecules include the sequence of any one of SEQ ID NOs: 14-1421.
  • In another embodiment, there is provided a method for syndromic testing comprising: (a) providing a reaction mixture comprising: (i) a plurality of first ribonucleoprotein complexes (RNP1s), each RNP1 comprising a nucleic acid-guided nuclease exhibiting both cis-cleavage and trans-cleavage activity and a first guide RNA (gRNA), wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the reaction mixture comprises at least two different RNP1s, wherein different RNP1s comprise different first gRNAs; (ii) a second ribonucleoprotein complex (RNP2), wherein the RNP2 comprises a second nucleic acid-guided nuclease and a second gRNA that does not recognize any of the target nucleic acids of interest; and (iii) a plurality of blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the blocked nucleic acid molecule cannot substantially activate the plurality of RNP1s or the RNP2; (b) contacting the reaction mixture with a sample under conditions that allow target nucleic acids of interest in the sample to bind to the RNP1s, wherein: upon binding of any one of the target nucleic acids of interest, the RNP1 becomes active, cleaving at least one of the blocked nucleic acid molecules, thereby producing at least one unblocked nucleic acid molecule; and at least one unblocked nucleic acid molecule binds to the second gRNA thereby activating RNP2 and initiating trans-cleavage of at least one further blocked nucleic acid molecule; and (c) detecting products of the cleavage of step (b), thus identifying at least one target nucleic acid of interest in the sample.
  • In some aspects of this embodiment, the first and/or second nucleic acid-guided nuclease is a Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, Cas13b nuclease; in some aspects, the first nucleic acid-guided nuclease can is a different nucleic acid-guided nuclease than the second nucleic acid-guided nuclease; in some aspects, the first and/or second nucleic acid-guided nuclease is a Type V nucleic acid-guided nuclease or a Type VI nucleic acid-guided nuclease and/or in some aspects, the first and/or second nucleic acid-guided nuclease comprises a RuvC nuclease domain or a RuvC-like nuclease domain and lacks an HNH nuclease domain.
  • Aspects also include the reaction mixture comprises about 1 fM to about 10 μM of the RNP1; and/or the reaction mixture comprises about 1 fM to about 1 mM of the RNP2. In some aspects the reaction mixture comprises at least two different RNP1 complex species, wherein different RNP1s comprise different gRNA sequences; and in some aspects the composition comprises 2 to 10000 different RNP1s, 2 to 1000 different RNP1s, 2 to 100 different RNP1s, or 2 to 10 different RNP1s.
  • In some aspects the Kd of the plurality of blocked nucleic acid molecules to the RNP2 is about 105-fold greater, 106-fold greater, 107-fold greater, 108-fold greater, 109-fold greater, 1010-fold greater or more than the Kd of unblocked nucleic acid molecules.
  • In some aspects of the aforementioned embodiment, the target nucleic acid of interest is of bacterial, viral, fungal, or mammalian origin, and in some aspects, the sample may include peripheral blood, serum, plasma, ascites, urine, cerebrospinal fluid (CSF), sputum, saliva, bone marrow, synovial fluid, aqueous humor, amniotic fluid, cerumen, breast milk, broncheoalveolar lavage fluid, semen, prostatic fluid, cowper's fluid or pre-ejaculatory fluid, sweat, fecal matter, hair, tears, cyst fluid, pleural and peritoneal fluid, pericardial fluid, lymph, chyme, chyle, bile, interstitial fluid, menses, pus, sebum, vomit, vaginal secretions, mucosal secretion, stool water, pancreatic juice, lavage fluids from sinus cavities, bronchopulmonary aspirates, blastocyl cavity fluid, and/or umbilical cord blood.
  • In some aspects of the aforementioned embodiments, the reaction mixture further comprises a reporter moiety: wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule that is operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2. In some aspects, the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1; in some aspects, the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or optical signal; and/or in some aspects, the reporter moiety comprises a modified nucleoside or nucleotide including but not limited to locked nucleic acids (LNAs), peptide nucleic acids (PNAs), 2′-O-methyl (2′-O-Me) modified nucleosides, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bonds. In some aspects the detectable signal is produced within about 1-10 minutes upon the target nucleic acid of interest activating RNP1.
  • In some aspects the blocked nucleic acid molecules comprise a PAM sequence and in other aspects, the blocked nucleic acid molecules do not comprise a PAM sequence. In some aspects the blocked nucleic acid molecules are linear and in some aspects, the blocked nucleic acids are circular and in yet other aspects, the blocked nucleic acid molecules are a mixture of circular and linear blocked nucleic acid molecules.
  • In some aspects the blocked nucleic acid molecules are blocked primer molecules and wherein the reaction mixture further comprises a polymerase and nucleotides.
  • In some aspects, the syndromic testing is for any two or more of common flu (e.g., influenza A, influenza A/H1, influenza A/H3, influenza A/H1-2009, and influenza B); one of the multiple strains of respiratory syncytial virus (RSV), such as RSV-A and RSV-B; at least one variant of SARS-CoV-2 (e.g., B.1.1.7, B.1.351, P.1, B.1.617.2, BA.1, BA.2, BA.2.12.1, BA.4, and BA.5); and at least one of other pathogens of interest (e.g., parainfluenza virus 1-4, human metapneumovirus, human rhinovirus, human enterovirus, adenovirus, coronavirus HKU1, coronavirus NL63, coronavirus 229E, coronavirus OC43, MERS).
  • Yet other embodiments provide: a method of detecting a target nucleic acid of interest in a sample comprising the steps of: providing a reaction mixture comprising a first RNP complex comprising a first nucleic acid-guided nuclease and a first guide RNA (gRNA), wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest; and a second RNP complex comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; and contacting the reaction mixture with the sample under conditions that allow the target nucleic acid of interest in the sample to bind to the first gRNA, wherein upon binding of the target nucleic acid of interest, the first RNP complex becomes active which catalyzes activation of the second RNP complex via one or more blocked nucleic acids to produce a detectable signal from a reporter moiety.
  • A further embodiment provides a modular cascade assay comprising: a first nucleic acid-guided nuclease, wherein the first nucleic acid-guided nuclease will form a first ribonucleoprotein complex with a first gRNA that is complementary to a target nucleic acid of interest; a second RNP2 complex comprising a second nucleic acid-guided nuclease and a second gRNA that is not complementary to a target nucleic acid of interest; and a plurality of blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the blocked nucleic acid molecules cannot activate the RNP1 complex or the RNP2 complex; wherein by changing the sequence of the first gRNA, the modular cascade assay is changed to detect different target nucleic acids of interest.
  • These aspects and other features and advantages of the invention are described below in more detail.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The foregoing and other features and advantages of the present invention will be more fully understood from the following detailed description of illustrative embodiments taken in conjunction with the accompanying drawings in which:
  • FIG. 1A is an overview of a prior art assay where target nucleic acids of interest from a sample must be amplified before performing a detection assay.
  • FIG. 1B is an overview of the general principles underlying the nucleic acid-guided nuclease cascade assay described in detail herein where target nucleic acids of interest from a sample do not need to be amplified before detection.
  • FIG. 2A is a diagram showing the sequence of steps in an exemplary cascade assay utilizing blocked nucleic acids.
  • FIG. 2B is a diagram showing an exemplary blocked nucleic acid molecule and a method for unblocking the blocked nucleic acid molecules of the disclosure.
  • FIG. 2C shows schematics of several exemplary blocked nucleic acid molecules containing the structure of Formula I, as described herein.
  • FIG. 2D shows schematics of several exemplary blocked nucleic acid molecules containing the structure of Formula II, as described herein.
  • FIG. 2E shows schematics of several exemplary blocked nucleic acid molecules containing the structure of Formula III, as described herein.
  • FIG. 2F shows schematics of several exemplary blocked nucleic acid molecules containing the structure of Formula IV, as described herein.
  • FIG. 2G shows an exemplary single-stranded blocked nucleic acid molecule with a design able to block R-loop formation with an RNP complex, thereby blocking activation of the trans-nuclease activity of an RNP complex (i.e., RNP2).
  • FIG. 2H shows schematics of exemplary circularized blocked nucleic acid molecules.
  • FIG. 3A is a diagram showing the sequence of steps in an exemplary cascade assay involving circular blocked primer molecules and linear template molecules.
  • FIG. 3B is a diagram showing the sequence of steps in an exemplary cascade assay involving circular blocked primer molecules and circular template molecules.
  • FIG. 4 illustrates three embodiments of reporter moieties.
  • FIG. 5A shows a lateral flow assay that can be used to detect the cleavage and separation of a signal from a reporter moiety.
  • FIG. 5B shows a schematic of a lateral flow assay device illustrating the results of an exemplary syndromic test.
  • FIG. 6 shows a titered quantification of a synthesized nucleocapsid gene (N-gene) using the nucleic acid detection methods described herein. As described in Example VI, a cascade assay was initiated using the detection methods described in Examples II-V above.
  • FIG. 7 shows titered quantification of an inactivated SARS-CoV-2 virus using the nucleic acid detection methods described in Examples II-V above.
  • FIG. 8 shows titered quantification of DNA from Methicillin-resistant Staphylococcus (MRSA) using the nucleic acid detection methods described in Examples II-V.
  • FIG. 9 shows titered quantification of DNA from Methicillin-resistant Staphylococcus (MRSA) using the nucleic acid detection methods described in Examples II-V.
  • FIG. 10 shows the detection of 3 copies of a molecule of DNA from Methicillin-resistant Staphylococcus (MRSA) using Molecule C5 as the blocked nucleic acid molecule.
  • FIG. 11 shows the detection of 3 copies of a molecule of DNA from Methicillin-resistant Staphylococcus (MRSA) using Molecule C6 as the blocked nucleic acid molecule.
  • FIG. 12 shows the detection of 3 copies of a molecule of DNA from Methicillin-resistant Staphylococcus (MRSA) using Molecule C7 as the blocked nucleic acid molecule.
  • FIG. 13 shows the detection of 3 copies of a molecule of DNA from Methicillin-resistant Staphylococcus (MRSA) using Molecule C8 as the blocked nucleic acid molecule.
  • FIG. 14 shows the detection of 3 copies of a molecule of DNA from Methicillin-resistant Staphylococcus (MRSA) using Molecule C9 as the blocked nucleic acid molecule.
  • It should be understood that the drawings are not necessarily to scale, and that like reference numbers refer to like features.
  • Definitions
  • All of the functionalities described in connection with one embodiment of the compositions and methods described herein are intended to be applicable to the additional embodiments of the compositions and methods described herein except where expressly stated or where the feature or function is incompatible with the additional embodiments. For example, where a given feature or function is expressly described in connection with one embodiment but not expressly mentioned in connection with an alternative embodiment, it should be understood that the feature or function may be deployed, utilized, or implemented in connection with the alternative embodiment unless the feature or function is incompatible with the alternative embodiment.
  • Note that as used herein and in the appended claims, the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to “a cell” refers to one or more cells, and reference to “a system” includes reference to equivalent steps, methods and devices known to those skilled in the art, and so forth. Additionally, it is to be understood that terms such as “left,” “right,” “top,” “bottom,” “front,” “rear,” “side,” “height,” “length,” “width,” “upper,” “lower,” “interior,” “exterior,” “inner,” “outer” that may be used herein merely describe points of reference and do not necessarily limit embodiments of the present disclosure to any particular orientation or configuration. Furthermore, terms such as “first,” “second,” “third,” etc., merely identify one of a number of portions, components, steps, operations, functions, and/or points of reference as disclosed herein, and likewise do not necessarily limit embodiments of the present disclosure to any particular configuration or orientation.
  • Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. All publications mentioned herein are incorporated by reference for the purpose of describing and disclosing devices, formulations and methodologies that may be used in connection with the presently described invention. Conventional methods are used for the procedures described herein, such as those provided in the art, and demonstrated in the Examples and various general references. Unless otherwise stated, nucleic acid sequences described herein are given, when read from left to right, in the 5′ to 3′ direction. Nucleic acid sequences may be provided as DNA, as RNA, or a combination of DNA and RNA (e.g., a chimeric nucleic acid).
  • Where a range of values is provided, it is understood that each intervening value, between the upper and lower limit of that range and any other stated or intervening value in that stated range is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included in smaller ranges, and are also encompassed within the invention, subject to any specifically excluded limit in the stated range. Where the stated range includes one or both of the limits, ranges excluding either or both of those included limits are also included in the invention.
  • The term “and/or” where used herein is to be taken as specific disclosure of each of the multiple specified features or components with or without another. Thus, the term “and/or” as used in a phrase such as “A and/or B” herein is intended to include “A and B,” “A or B,” “A” (alone), and “B” (alone). Likewise, the term “and/or” as used in a phrase such as “A, B, and/or C” is intended to encompass each of the following embodiments: A, B, and C; A, B, or C; A or C; A or B; B or C; A and C; A and B; B and C; A (alone); B (alone); and C (alone).
  • In the following description, numerous specific details are set forth to provide a more thorough understanding of the present invention. However, it will be apparent to one of skill in the art that the present invention may be practiced without one or more of these specific details. In other instances, features and procedures well known to those skilled in the art have not been described in order to avoid obscuring the invention. The terms used herein are intended to have the plain and ordinary meaning as understood by those of ordinary skill in the art.
  • As used herein, the term “about,” as applied to one or more values of interest, refers to a value that falls within 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, or less in either direction (greater than or less than) of a stated reference value, unless otherwise stated or otherwise evident from the context (except where such number would exceed 100% of a possible value).
  • As used herein, the terms “binding affinity” or “dissociation constant” or “Kd” refer to the tendency of a molecule to bind (covalently or non-covalently) to a different molecule. A high Kd (which in the context of the present disclosure refers to blocked nucleic acid molecules or blocked primer molecules binding to RNP2) indicates the presence of more unbound molecules, and a low Kd (which in the context of the present disclosure refers to unblocked nucleic acid molecules or unblocked primer molecules binding to RNP2) indicates the presence of more bound molecules. In the context of the present disclosure and the binding of blocked or unblocked nucleic acid molecules or blocked or unblocked primer molecules to RNP2, aow Kd values are in a range from about 100 fM to about 1 aM or lower (e.g., 100 zM) and high Kd values are in the range of 100 nM-100 μM (10 mM) and thus are about 105- to 1010-fold or higher as compared to low Kd values.
  • As used herein, the terms “binding domain” or “binding site” refer to a region on a protein, DNA, or RNA, to which specific molecules and/or ions (ligands) may form a covalent or non-covalent bond. By way of example, a polynucleotide sequence present on a nucleic acid molecule (e.g., a primer binding domain) may serve as a binding domain for a different nucleic acid molecule (e.g., an unblocked primer nucleic acid molecule). Characteristics of binding sites are chemical specificity, a measure of the types of ligands that will bond, and affinity, which is a measure of the strength of the chemical bond.
  • As used herein, the term “blocked nucleic acid molecule” refers to nucleic acid molecules that cannot bind to the first or second RNP complex to activate cis- or trans-cleavage. “Unblocked nucleic acid molecule” refers to a formerly blocked nucleic acid molecule that can bind to the second RNP complex (RNP2) to activate trans-cleavage of additional blocked nucleic acid molecules.
  • The terms “Cas RNA-guided endonuclease” or “CRISPR nuclease” or “nucleic acid-guided nuclease” refer to a CRISPR-associated protein that is an RNA-guided endonuclease suitable for assembly with a sequence-specific gRNA to form a ribonucleoprotein (RNP) complex.
  • As used herein, the terms “cis-cleavage”, “cis-endonuclease activity”, “cis-mediated endonuclease activity”, “cis-nuclease activity”, “cis-mediated nuclease activity”, and variations thereof refer to sequence-specific cleavage of a target nucleic acid of interest, including an unblocked nucleic acid molecule or synthesized activating molecule, by a nucleic acid-guided nuclease in an RNP complex. Cis-cleavage is a single turn-over cleavage event in that only one substrate molecule is cleaved per event.
  • The term “complementary” as used herein refers to Watson-Crick base pairing between nucleotides and specifically refers to nucleotides hydrogen-bonded to one another with thymine or uracil residues linked to adenine residues by two hydrogen bonds and cytosine and guanine residues linked by three hydrogen bonds. In general, a nucleic acid includes a nucleotide sequence described as having a “percent complementarity” or “percent homology” to a specified second nucleotide sequence. For example, a nucleotide sequence may have 80%, 90%, or 100% complementarity to a specified second nucleotide sequence, indicating that 8 of 10, 9 of 10, or 10 of 10 nucleotides of a sequence are complementary to the specified second nucleotide sequence. For instance, the nucleotide sequence 3′-TCGA-5′ is 100% complementary to the nucleotide sequence 5′-AGCT-3′; and the nucleotide sequence 3′-TCGATCGATCGA-5′ [SEQ ID NO: 1] is 100% complementary to a region of the nucleotide sequence 5′-GCTAGCTAGC-3′ [SEQ ID NO: 2].
  • As used herein, the term “contacting” refers to placement of two moieties in direct physical association, including in solid or liquid form. Contacting can occur in vitro with isolated cells (for example in a tissue culture dish or other vessel) or in vivo by administering an agent to a subject.
  • A “control” is a reference standard of a known value or range of values.
  • The terms “guide nucleic acid” or “guide RNA” or “gRNA” refer to a polynucleotide comprising 1) a crRNA region or guide sequence capable of hybridizing to the target strand of a target nucleic acid of interest, and 2) a scaffold sequence capable of interacting or complexing with a nucleic acid-guided nuclease. The crRNA region of the gRNA is a customizable component that enables specificity in every nucleic acid-guided nuclease reaction. A gRNA can include any polynucleotide sequence having sufficient complementarity with a target nucleic acid of interest to hybridize with the target nucleic acid of interest and to direct sequence-specific binding of a ribonucleoprotein (RNP) complex containing the gRNA and nucleic acid-guided nuclease to the target nucleic acid. Target nucleic acids of interest may include a protospacer adjacent motif (PAM), and, following gRNA binding, the nucleic acid-guided nuclease induces a double-stranded break either inside or outside the protospacer region on the target nucleic acid of interest, including on an unblocked nucleic acid molecule or synthesized activating molecule. A gRNA may contain a spacer sequence including a plurality of bases complementary to a protospacer sequence in the target nucleic acid. For example, a spacer can contain about 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, or more bases. The gRNA spacer may be 50%, 60%, 75%, 80%, 85%, 90%, 95%, 97.5%, 98%, 99%, or more complementary to its corresponding target nucleic acid of interest. Optimal alignment may be determined with the use of any suitable algorithm for aligning sequences. A guide RNA may be from about 20 nucleotides to about 300 nucleotides long. Guide RNAs may be produced synthetically or generated from a DNA template.
  • “Modified” refers to a changed state or structure of a molecule. Molecules may be modified in many ways including chemically, structurally, and functionally. In one embodiment, a nucleic acid molecule (for example, a blocked nucleic acid molecule) may be modified by the introduction of non-natural nucleosides, nucleotides, and/or internucleoside linkages. In another embodiment, a modified protein (e.g., a nucleic acid-guided nuclease) may refer to any polypeptide sequence alteration which is different from the wildtype.
  • The terms “percent sequence identity”, “percent identity”, or “sequence identity” refer to percent (%) sequence identity with respect to a reference polynucleotide or polypeptide sequence following alignment by standard techniques. Alignment for purposes of determining percent sequence identity can be achieved in various ways that are within the capabilities of one of skill in the art, for example, using publicly available computer software such as BLAST, BLAST-2, PSI-BLAST, or Megalign software. In some embodiments, the software is MUSCLE (Edgar, Nucleic Acids Res., 32(5):1792-1797 (2004)). Those skilled in the art can determine appropriate parameters for aligning sequences, including any algorithms needed to achieve maximal alignment over the full length of the sequences being compared. For example, in embodiments, percent sequence identity values are generated using the sequence comparison computer program BLAST (Altschul et al., J. Mol. Biol., 215:403-410 (1990)).
  • As used herein, the terms “preassembled ribonucleoprotein complex”, “ribonucleoprotein complex”, “RNP complex”, or “RNP” refer to a complex containing a guide RNA (gRNA) and a nucleic acid-guided nuclease, where the gRNA is integrated with the nucleic acid-guided nuclease. The gRNA, which includes a sequence complementary to a target nucleic acid of interest, guides the RNP to the target nucleic acid of interest and hybridizes to it. The hybridized target nucleic acid-gRNA units are cleaved by the nucleic acid-guided nuclease. In the cascade assays described herein, a first ribonucleoprotein complex (RNP1) includes a first guide RNA (gRNA) specific to a nucleic acid target nucleic acid of interest, and a first nucleic acid-guided nuclease, such as, for example, cas12a or cas14a for a DNA target nucleic acid, or cas13a for an RNA target nucleic acid. A second ribonucleoprotein complex (RNP2) for signal amplification includes a second guide RNA specific to an unblocked nucleic acid or synthesized activating molecule, and a second nucleic acid-guided nuclease, which may be different from or the same as the first nucleic acid-guided nuclease.
  • As used herein, the terms “protein” and “polypeptide” are used interchangeably. Proteins may or may not be made up entirely of amino acids.
  • As used herein, the term “sample” refers to tissues; cells or component parts; body fluids, including but not limited to peripheral blood, serum, plasma, ascites, urine, cerebrospinal fluid (CSF), sputum, saliva, bone marrow, synovial fluid, aqueous humor, amniotic fluid, cerumen, breast milk, broncheoalveolar lavage fluid, semen, prostatic fluid, cowper's fluid or pre-ejaculatory fluid, sweat, fecal matter, hair, tears, cyst fluid, pleural and peritoneal fluid, pericardial fluid, lymph, chyme, chyle, bile, interstitial fluid, menses, pus, sebum, vomit, vaginal secretions, mucosal secretion, stool water, pancreatic juice, lavage fluids from sinus cavities, bronchopulmonary aspirates, blastocyl cavity fluid, and umbilical cord blood; food; agricultural products; pharmaceuticals; cosmetics, nutriceuticals; personal care products; environmental substances such as soil, water, or air; industrial sites and products; and chemicals and compounds. A sample further may include a homogenate, lysate or extract. A sample further refers to a medium, such as a nutrient broth or gel, which may contain cellular components, such as proteins or nucleic acid molecules.
  • The terms “target DNA sequence”, “target sequence”, “target nucleic acid of interest”, “target molecule of interest”, “target nucleic acid”, or “target of interest” refer to any locus that is recognized by a gRNA sequence in vitro or in vivo. The “target strand” of a target nucleic acid of interest is the strand of the double-stranded target nucleic acid that is complementary to a gRNA. The spacer sequence of a gRNA may be 50%, 60%, 75%, 80%, 85%, 90%, 95%, 97.5%, 98%, 99% or more complementary to the target nucleic acid of interest. Optimal alignment can be determined with the use of any suitable algorithm for aligning sequences. Full complementarity is not necessarily required provided there is sufficient complementarity to cause hybridization and trans-cleavage activation of an RNP complex. A target nucleic acid of interest can include any polynucleotide, such as DNA (ssDNA or dsDNA) or RNA polynucleotides. A target nucleic acid of interest may be located in the nucleus or cytoplasm of a cell such as, for example, within an organelle of a eukaryotic cell, such as a mitochondrion or a chloroplast, or it can be exogenous to a host cell, such as a eukaryotic cell or a prokaryotic cell. The target nucleic acid of interest may be present in a sample, such as a biological or environmental sample, and it can be a viral nucleic acid molecule, a bacterial nucleic acid molecule, a fungal nucleic acid molecule, or a polynucleotide of another organism, such as a coding or a non-coding sequence, and it may include single-stranded or double-stranded DNA molecules, such as a cDNA or genomic DNA, or RNA molecules, such as mRNA, tRNA, and rRNA. The target nucleic acid may be associated with a protospacer adjacent motif (PAM) sequence, which may include a 2-5 base pair sequence adjacent to the protospacer. In some embodiments 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or more target nucleic acids can be detected by the disclosed method.
  • As used herein, the terms “trans-cleavage”, “trans-endonuclease activity”, “trans-mediated endonuclease activity”, “trans-nuclease activity”, “trans-mediated nuclease activity”, and variations thereof, refer to indiscriminate, non-sequence-specific cleavage of a nucleic acid molecule by an endonuclease (such as by a Cas12, Cas13, and Cas14) which is triggered by cis-(sequence-specific) cleavage. Trans-cleavage is a “multiple turn-over” event, in that more than one substrate molecule is cleaved after initiation by a single turn-over cis-cleavage event.
  • Type V CRISPR/Cas nucleic acid-guided nucleases are a subtype of Class 2 CRISPR/Cas effector nucleases such as, but not limited to, engineered Cas12a, Cas12b, Cas12c, C2c4, C2c8, C2c5, C2c10, C2c9, CasX (Cas12e), CasY (Cas12d), Cas 13a nucleases or naturally-occurring proteins, such as a Cas12a isolated from, for example, Francisella tularensis subsp. novicida (Gene ID: 60806594), Candidatus Methanoplasma termitum (Gene ID: 24818655), Candidatus Methanomethylophilus alvus (Gene ID: 15139718), and [Eubacterium] eligens ATCC 27750 (Gene ID: 41356122), and an artificial polypeptide, such as a chimeric protein.
  • The term “variant” refers to a polypeptide or polynucleotide that differs from a reference polypeptide or polynucleotide but retains essential properties. A typical variant of a polypeptide differs in amino acid sequence from another reference polypeptide. Generally, differences are limited so that the sequences of the reference polypeptide and the variant are closely similar overall and, in many if not most regions, identical. A variant and reference polypeptide may differ in amino acid sequence by one or more modifications (e.g., substitutions, additions, and/or deletions). A variant of a polypeptide may be a conservatively modified variant. A substituted or inserted amino acid residue may or may not be one encoded by the genetic code (e.g., a non-natural amino acid). A variant of a polypeptide may be naturally occurring, such as an allelic variant, or it may be a variant that is not known to occur naturally. Variants include modifications-including chemical modifications—to one or more amino acids that do not involve amino acid substitutions, additions or deletions.
  • A “vector” is any of a variety of nucleic acids that comprise a desired sequence or sequences to be delivered to and/or expressed in a cell. Vectors are typically composed of DNA, although RNA vectors are also available. Vectors include, but are not limited to, plasmids, fosmids, phagemids, virus genomes, synthetic chromosomes, and the like.
  • DETAILED DESCRIPTION
  • The present disclosure provides compositions of matter, methods, and cascade assays for detecting nucleic acids. The cascade assays described herein comprise first and second ribonucleoprotein complexes and either blocked nucleic acid molecules or blocked primer molecules. The blocked nucleic acid molecules or blocked primer molecules keep the second ribonucleoprotein complexes “locked” unless and until a target nucleic acid of interest activates the first ribonucleoprotein complex. The methods comprise the steps of providing cascade assay components, contacting the cascade assay components with a sample, and detecting a signal that is generated only when a target nucleic acid of interest is present in the sample ids.
  • Early and accurate detection and determination of infections and diseases is crucial for appropriate prevention strategies, accurate testing, confirmation, and further diagnosis and treatment. Nucleic acid-guided nucleases, such as the Cas12a endonuclease, can be utilized as diagnostic tools for the detection of target nucleic acids of interest associated with diseases. However, currently available state-of-the-art CRISPR Cas12a-based nucleic acid detection relies on DNA amplification before using Cas12a enzymes, which significantly hinders the ability to perform rapid point-of-care testing. The lack of rapidity is due to the fact that target-specific activation of Cas12a enzymes, referred herein as cis-cleavage, is a single turnover event in which the number of activated enzyme complexes is, at most, equal to the number of copies of the target nucleic acids of interest in the sample. Once a ribonucleoprotein (RNP) complex is activated after completion of cis-cleavage, the RNP complex initiates rapid non-specific trans-endonuclease activity, which is a multi-turnover event. Some currently available methods use trans-cleavage to cleave fluorescent reporters that are initially quenched to generate a signal, thereby indicating the presence of a cis-cleavage event—the target nucleic acid. However, the Kcat of activated Cas12a complex is 17/sec and 3/sec for dsDNA and ssDNA targets, respectively. Therefore, for less than 10,000 target copies, the number of reporters cleaved is not sufficient to generate a signal in less than 60 minutes. Hence, all current technologies rely on DNA amplification to first generate billions of target copies to activate a proportional number of ribonucleoprotein complexes to generate a detectable signal in 30-60 minutes.
  • The present disclosure describes a nucleic acid-guided nuclease cascade assay that can detect one or more target nucleic acids of interest (e.g., DNA, RNA and/or cDNA) at attamolar (aM) (or lower) limits in about 10 minutes or less without the need for amplifying the target nucleic acid(s) of interest, thereby avoiding the drawbacks of multiplex amplification, such as primer-dimerization. As described in detail below, the nucleic acid-guided nuclease cascade assays utilize signal amplification mechanisms comprising various components including nucleic acid-guided nucleases, guide RNAs (gRNAs), blocked nucleic acid molecules or blocked primer molecules, reporter moieties, and, in some embodiments, polymerases. A particularly advantageous feature of the cascade assay is that, with the exception of the gRNA (gRNA1) in RNP1, the cascade assay components stay the same no matter what target nucleic acid(s) of interest are being detected. In this sense, the cascade assay is modular.
  • FIG. 1A provides a simplified diagram demonstrating a prior art method (1) of a nucleic acid-guided nuclease detection assay where target nucleic acids of interest from a sample must be amplified in order to be detected. First, assuming the presence of a target nucleic acid of interest in a sample, the target nucleic acid of interest (2) is amplified to produce many copies of the target nucleic acid of interest (4). The detection assay is initiated (step 2) when the target nucleic acid of interest (4) is combined with and binds to a pre-assembled ribonucleoprotein complex (6), which is part of a reaction mix. The ribonucleoprotein complex (6) comprises a guide RNA (gRNA) and a nucleic acid-guided nuclease, where the gRNA is integrated with the nucleic acid-guided nuclease. The gRNA, which includes a sequence complementary to the target nucleic acid of interest, guides the RNP complex to the target nucleic acid of interest and hybridizes to it thereby activating the ribonucleoprotein complex (6). The nucleic acid-guided nuclease exhibits (i.e., possesses) both cis- and trans-cleavage activity, where trans-cleavage activity is initiated by cis-cleavage activity. Cis-cleavage activity occurs as the target nucleic acid of interest binds to the gRNA and is cleaved by the nucleic acid guided nuclease (i.e., activation). Once cis-cleavage of the target nucleic acid of interest is initiated, trans-cleavage activity is triggered, where trans-cleavage activity is indiscriminate, non-sequence-specific cleavage of nucleic acid molecules in the sample and is a multi-turnover event.
  • In step 3, the trans-cleavage activity triggers activation of reporter moieties (12) that are present in the reaction mix. The reporter moieties (12) may be a synthetic molecule linked or conjugated to a quencher (14) and a fluorophore (16) such as, for example, a probe with a dye label (e.g., FAM or FITC) on the 5′ end and a quencher on the 3′ end. The quencher (14) and fluorophore (16) typically are about 20-30 bases apart or less for effective quenching via fluorescence resonance energy transfer (FRET). Reporter moieties (12) are described in greater detail below. As more activated ribonucleoprotein complexes (6) are activated (68), more trans-cleavage activity of the nucleic acid-guided nuclease in the ribonucleoprotein complex is activated and more reporter moieties are activated (where here, “activated” means unquenched); thus, the binding of the target nucleic acid of interest (4).
  • As noted above, the downside to the prior art, currently available state-of-the-art nucleic acid-guided nuclease detection assays is that these detection assays rely on DNA amplification, which, in addition to issues with multiplexing, significantly hinders the ability to perform rapid point-of-care testing. The lack of rapidity is due to cis-cleavage of a target nucleic acid of interest being a single turnover event in which the number of activated enzyme complexes is, at most, equal to the number of copies of the target nucleic acids of interest in the sample. Once the ribonucleoprotein complex is activated after completion of cis-cleavage, trans-cleavage activity of the reporter moieties that are initially quenched is generated. However, the Kcat of, e.g., activated Cas12a complex is 17/sec and 3/sec for dsDNA and ssDNA targets, respectively. Therefore, for less than 10,000 target copies, the number of reporters cleaved is not sufficient to generate a signal in less than 30-60 minutes.
  • FIG. 1B provides a simplified diagram demonstrating a method (100) of a nucleic acid-guided nuclease cascade assay. The cascade assay is initiated when the target nucleic acid of interest (104) binds to and activates a first pre-assembled ribonucleoprotein complex (RNP1) (102). A ribonucleoprotein complex comprises a guide RNA (gRNA) and a nucleic acid-guided nuclease, where the gRNA is integrated with the nucleic acid-guided nuclease. The gRNA, which includes a sequence complementary to the target nucleic acid of interest, guides an RNP complex to the target nucleic acid of interest and hybridizes to it. Typically, preassembled RNP complexes are employed in the reaction mix—as opposed to separate nucleic acid-guided nucleases and gRNAs—to facilitate rapid detection of the target nucleic acid(s) of interest.
  • “Activation” of RNP1 refers to activating trans-cleavage activity of the nucleic acid-guided nuclease in RNP1 (106) by first initiating cis-cleavage where the target nucleic acid of interest is cut by the nucleic acid-guided nuclease. The cis-cleavage activity initiates trans-cleavage activity (i.e., multi-turnover activity) of the nucleic acid-guided nuclease, where trans-cleavage is indiscriminate, non-sequence-specific cutting of nucleic acid molecules by the nucleic acid-guided nuclease of RNP1 (102). This trans-cleavage activity triggers activation of blocked ribonucleoprotein complexes (RNP2s) (108) in various ways, which are described in detail below. Each newly activated RNP2 (110) activates more RNP2 (108110), which in turn cleave reporter moieties (112). The reporter moieties (112) may be a synthetic molecule linked or conjugated to a quencher (114) and a fluorophore (116) such as, for example, a probe with a dye label (e.g., FAM or FITC) on the 5′ end and a quencher on the 3′ end. The quencher (114) and fluorophore (116) can be about 20-30 bases apart or less for effective quenching via fluorescence resonance energy transfer (FRET). Reporter moieties also are described in greater detail below. As more RNP2s are activated (108110), more trans-cleavage activity is activated and more reporter moieties are activated (where here, “activated” means unquenched); thus, the binding of the target nucleic acid of interest (104) to RNP1 (102) initiates what becomes a cascade of signal production (120), which increases exponentially. The cascade assay thus comprises a single turnover event that triggers a multi-turnover event that then triggers another multi-turnover event. As described below in relation to FIG. 4 , the reporter moieties (112) may be provided as molecules that are separate from the other components of the nucleic acid-guided nuclease cascade assay, or the reporter moieties may be covalently or non-covalently linked to the blocked nucleic acid molecules or synthesized activating molecules (i.e., the target molecules for the RNP2). The various components common to the embodiments of the cascade assay and methods described herein are described below.
  • Target Nucleic Acids of Interest
  • The target nucleic acid of interest may be a DNA, RNA, or cDNA molecule. Target nucleic acids of interest may be isolated from a sample or organism by standard laboratory techniques or may be synthesized by standard laboratory techniques (e.g., RT-PCR). In some embodiments, the target nucleic acids of interest are identified in a sample, such as a biological sample from a subject or an environmental sample (e.g., water or soil). Non-limiting examples of biological samples include blood, serum, plasma, saliva, mucus, a nasal swab, a buccal swab, a cell, a cell culture, and tissue. The source of the sample could be any mammal, such as, but not limited to, a human, primate, monkey, cat, dog, mouse, pig, cow, horse, sheep, and bat. Samples may also be obtained from any other source, such as air, water, soil, surfaces, food, beverages, nutraceuticals, clinical sites or products, industrial sites and products, cosmetics, personal care products, pharmaceuticals, medical devices, agricultural equipment and sites, and commercial samples.
  • In some embodiments, the target nucleic acid of interest is from an infectious agent (e.g., a bacteria, protozoan, insect, worm, virus, or fungus). As a non-limiting example, the target nucleic acid of interest could be one or more nucleic acid molecules from bacteria, such as Bordetella parapertussis, Bordetella pertussis, Chlamydia pneumoniae, Legionella pneumophila, Mycoplasma pneumoniae, Acinetobacter calcoaceticus-baumannii complex, Bacteroides fragilis, Enterobacter cloacae complex, Escherichia coli, Klebsiella aerogenes, Klebsiella oxytoca, Klebsiella pneumoniae group, Moraxella catarrhalis, Proteus spp., Salmonella enterica, Serratia marcescens, Haemophilus influenzae, Neisseria meningitidis, Pseudomonas aeruginosa, Stenotrophomonas maltophilia, Enterococcus faecalis, Enterococcus faecium, Listeria monocytogenes, Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus lugdunensis, Streptococcus agalactiae, Streptococcus pneumoniae, Streptococcus pyogenes, Chlamydia tracomatis, Neisseria gonorrhoeae, Syphilis (Treponema pallidum), Ureaplasma urealyticum, Mycoplasma genitalium, and/or Gardnerella vaginalis. As a non-limiting example, the target nucleic acid of interest could be one or more nucleic acid molecules from a virus, such as adenovirus, coronavirus HKU1, coronavirus NL63, coronavirus 229E, coronavirus OC43, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), human metapneumovirus, human rhinovirus, enterovirus, influenza A, influenza A/H1, influenza A/H3, influenza A/H1-2009, influenza B, parainfluenza virus 1, parainfluenza virus 2, parainfluenza virus 3, parainfluenza virus 4, respiratory syncytial virus, herpes simplex virus 1, herpes simplex virus 2, human immunodeficiency virus (HIV), human papillomavirus, hepatitis A virus (HAV), hepatitis B virus (HBV), hepatitis C virus (HCV), and/or human parvovirus B19 (B19V). Also, as a non-limiting example, the target nucleic acid of interest could be one or more nucleic acid molecules from a fungus, such as Candida albicans, Candida auris, Candida glabrata, Candida krusei, Candida parapsilosis, Candida tropicalis, Cryptococcus neoformans, and/or Cryptococcus gattii. As another non-limiting example, the target nucleic acid of interest could be one or more nucleic acid molecules from a protozoan, such as Trichomonas vaginalis. In some embodiments, other target nucleic acids of interest may be for non-infectious conditions, e.g., to be used for genotyping. Other target nucleic acids of interest and samples are described herein.
  • The cascade assays described herein are particularly well-suited for syndromic testing. Syndromic testing allows simultaneous testing for multiple causative agents that cause similar symptoms. Syndromic testing allows rapid triage of patients, such as those needing emergency care, those amenable to treatment with pharmaceutical agents, those needing to be quarantined, etc. In syndrome testing, multiple target nucleic acids of interest are pooled into a single reaction, and this process may be repeated in multiple, separate reactions. A positive result in one of the reactions indicates that one of the target nucleic acids of interest in that pool is present. Pools of two to 10,000 target nucleic acids of interest may be employed, e.g., 2-1000, 2-100, 2-50, or 2-10. Further testing may be used to identify the specific member of the pool, if warranted. Syndromic testing allows the rapid triage of patients with the ability to focus further care rapidly.
  • While the methods described herein do not require the target nucleic acid of interest to be DNA (and in fact it is specifically contemplated that the target nucleic acid of interest may be RNA), it is understood by those in the field that a reverse transcription step to convert target RNA to cDNA may be performed prior to or while contacting the biological sample with the composition.
  • Nucleic Acid-Guided Nucleases
  • The cascade assays comprise nucleic acid-guided nucleases in the reaction mix, either provided as a protein, a coding sequence for the protein, or in a ribonucleoprotein (RNP) complex. In some embodiments, the one or more nucleic acid-guided nucleases in the reaction mix may be, for example, a Cas endonuclease. Any nucleic acid-guided nuclease having both cis- and trans-endonuclease activity may be employed, and the same nucleic acid-guided nuclease may be used for both RNPs or different nucleic acid-guided nucleases may be used in RNP1 and RNP2. Note that trans-cleavage activity is not triggered unless and until cis-cleavage activity (i.e., sequence specific activity) is initiated. Nucleic acid-guided nucleases include Type V and Type VI nucleic acid-guided nucleases, as well as nucleic acid-guided nucleases that comprise a RuvC nuclease domain or a RuvC-like nuclease domain but lack an HNH nuclease domain. Nucleic acid-guided nucleases with these properties are reviewed in Makarova and Koonin, Methods Mol. Biol., 1311:47-75 (2015) and Koonin, et al., Current Opinion in Microbiology, 37:67-78 (2020) and updated databases of nucleic acid-guided nucleases and nuclease systems that include newly-discovered systems include BioGRID ORCS (orcs:thebiogrid.org); GenomeCRISPR (genomecrispr.org); Plant Genome Editing Database (plantcrispr.org) and CRISPRCasFinder (crispercas.i2bc.paris-saclay.fr).
  • The type of nucleic acid-guided nuclease utilized in the method of detection depends on the type of target nucleic acid of interest to be detected. For example, a DNA nucleic acid-guided nuclease (e.g., a Cas12a, Cas14a, or Cas3) should be utilized if the target nucleic acid of interest is a DNA molecule, and an RNA nucleic acid-guided nuclease (e.g., Cas13a or Cas12g) should be utilized if the target nucleic acid of interest is an RNA molecule. Exemplary nucleic acid-guided nucleases include, but are not limited to, Cas RNA-guided DNA endonucleases, such as Cas3, Cas12a (e.g., AsCas12a, LbCas12a), Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, and Cas12j; Cas RNA-guided RNA endonucleases, such as Cas13a (LbaCas13, LbuCas13, LwaCas13), Cas13b (e.g., CccaCas13b, PsmCas13b), and Cas12g; and any other nucleic acid (DNA, RNA, or cDNA) targeting nucleic acid-guided nuclease with cis-cleavage activity and collateral trans-cleavage activity. In some embodiments, the nucleic acid-guided nuclease is a Type V CRISPR-Cas nuclease, such as a Cas12a, Cas13a, or Cas14a. In some embodiments, the nucleic acid-guided nuclease is a Type I CRISPR-Cas nuclease, such as Cas3. Type II and Type VI nucleic acid-guided nucleases may also be employed.
  • Guide RNA (gRNA)
  • The present disclosure detects a target nucleic acid of interest via a reaction mixture containing at least two gRNAs. Suitable guide RNAs include at least one crRNA region to enable specificity in every reaction. The gRNA of RNP1 is specific to a target nucleic acid of interest, and the gRNA of RNP2 is specific to an unblocked nucleic acid or a synthesized activating molecule (both described in detail herein). As will be clear given the description below, an advantageous feature of the cascade assay is that, with the exception of the gRNA in the RNP1 (i.e., the gRNA specific to the target nucleic acid of interest), the cascade assay components can stay the same no matter what target nucleic acid(s) of interest are being detected. In this sense, the cascade assay is modular.
  • Like the nucleic acid-guided nuclease, the gRNA may be provided in the cascade assay reaction mix in a preassembled RNP, as an RNA molecule, or may also be provided as a DNA sequence to be transcribed, in, e.g., a vector backbone. If provided as a gRNA molecule, the gRNA sequence may include multiple endoribonuclease recognition sites (e.g., Csy4) for multiplex processing. Alternatively, if provided as a DNA sequence to be transcribed, an endoribonuclease recognition site is encoded between neighboring gRNA sequences and more than one gRNA can be transcribed in a single expression cassette. Direct repeats can also serve as endoribonuclease recognition sites for multiplex processing. Guide RNAs are generally about 20 nucleotides to about 300 nucleotides in length and may contain a spacer sequence containing a plurality of bases and complementary to a protospacer sequence in the target sequence. The gRNA spacer sequence may be 50%, 60%, 75%, 80%, 85%, 90%, 95%, 97.5%, 98%, 99%, or more complementary to its intended target nucleic acid of interest.
  • The gRNA of RNP1 is capable of complexing with the nucleic acid-guided nuclease to perform cis-cleavage of a target nucleic acid of interest (e.g., a DNA or RNA), which triggers non-sequence specific trans-cleavage of other molecules in the reaction mix. Guide RNAs include any polynucleotide sequence having sufficient complementarity with a target nucleic acid of interest (or target sequences generated by unblocking blocked nucleic acid molecules or target sequences generated by synthesizing activating molecules as described below). Target sequences may include a protospacer-adjacent motif (PAM), and, following gRNA binding, the nucleic acid-guided nuclease induces a double-stranded break either inside or outside the protospacer region of the target sequence.
  • In some embodiments, the gRNA (e.g., of RNP1) is an exo-resistant circular molecule that can include several DNA bases between the 5′ end and the 3′ end of a natural guide RNA and is capable of binding a target sequence. The length of the circularized guide for RNP1 can be such that the circular form of guide can be complexed with a nucleic acid-guided nuclease to form a modified RNP1 which can still retain its cis-cleavage (specific) and trans-cleavage (non-specific) nuclease activity.
  • In any of the foregoing embodiments, the gRNA may be a modified or non-naturally occurring nucleic acid molecule. In some embodiments, the gRNAs of the disclosure may further contain a locked nucleic acid (LNA), a bridged nucleic acid (BNA), and/or a peptide nucleic acid (PNA). By way of further example, a modified nucleic acid molecule may contain a modified or non-naturally occurring nucleoside, nucleotide, and/or internucleoside linkage, such as a 2′-O-methyl (2′-O-Me) modified nucleoside, a 2′-fluoro (2′-F) modified nucleoside, and a phosphorothioate (PS) bond, or any other nucleic acid molecule modifications described herein.
  • Ribonucleoprotein (RNP) Complex
  • As described above, although the assay “reaction mix” may comprise separate nucleic acid-guided nucleases and gRNAs (or coding sequences therefor), the cascade assays preferably comprise preassembled ribonucleoprotein complexes (RNPs) in the reaction mix, allowing for faster detection kinetics. The present cascade assay employs at least two types of RNP complexes, RNP1 and RNP2, each type containing a nucleic acid-guided nuclease and a gRNA. RNP1 and RNP2 may comprise the same nucleic acid-guided nuclease or may comprise different nucleic acid-guided nucleases; however, the gRNAs in RNP1 and RNP2 are different and are configured to detect different nucleic acids. In some embodiments, the reaction mixture contains about 1 fM to about 10 μM of a given RNP1, or about 1 pM to about 1 μM of a given RNP1, or about 10 pM to about 500 pM of a given RNP1. In some embodiments the reaction mixture contains about 6×104 to about 6×1012 complexes per microliter (μl) of a given RNP1, or about 6×106 to about 6×1010 complexes per microliter (μl) of a given RNP1. In some embodiments, the reaction mixture contains about 1 fM to about 1 mM of a given RNP2, or about 1 pM to about 500 μM of a given RNP2, or about 10 pM to about 100 μM of a given RNP2. In some embodiments the reaction mixture contains about 6×104 to about 6×1014 complexes per microliter (μl) of a given RNP2 or about 6×106 to about 6×1012 complexes per microliter (μl) of a given RNP2. (See Example II below describing preassembling RNPs and Examples V-IX below describing various cascade assay conditions, including performing the cascade assay at room temperature.)
  • In any of the embodiments of the disclosure, the reaction mixture includes 1 to about 1,000 different RNP1s (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 27, 28, 19, 20, 21, 22, 23, 24, 25, 50, 75, 100, 125, 150, 175, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650, 700, 750, 800, 850, 900, 950, or 1,0000 RNP1s), where different RNP1s comprise a different gRNA (or crRNA thereof) polynucleotide sequence. For example, a reaction mixture designed for syndromic testing by definition comprises more than one unique RNP1-gRNA (or RNP1-crRNA) ribonucleoprotein complex for the purpose of detecting more than one target nucleic acid of interest. More than one RNP1 may also be present for the purpose of targeting more than one target nucleic acid of interest from a single organism or condition.
  • In any of the foregoing embodiments, the gRNA of RNP1 may be homologous or heterologous, relative to the gRNA of other RNP1 present in the reaction mixture. A homologous mixture of RNP1 gRNAs has a number of gRNAs with the same nucleotide sequence, whereas a heterologous mixture of RNP1 gRNAs has multiple gRNAs with different nucleotide sequences (e.g., gRNAs targeting different loci, genes, variants, and/or microbial species). Therefore, the disclosed methods of identifying one or more target nucleic acids of interest may include a reaction mixture containing more than two heterologous gRNAs, more than three heterologous gRNAs, more than four heterologous gRNAs, more than five heterologous gRNAs, more than six heterologous gRNAs, more than seven heterologous gRNAs, more than eight heterologous gRNAs, more than nine heterologous gRNAs, more than ten heterologous gRNAs, more than eleven heterologous gRNAs, more than twelve heterologous gRNAs, more than thirteen heterologous gRNAs, more than fourteen heterologous gRNAs, more than fifteen heterologous gRNAs, more than sixteen heterologous gRNAs, more than seventeen heterologous gRNAs, more than eighteen heterologous gRNAs, more than nineteen heterologous gRNAs, more than twenty heterologous gRNAs, more than twenty-one heterologous gRNAs, more than twenty-three heterologous gRNAs, more than twenty-four heterologous gRNAs, or more than twenty-five heterologous gRNAs. Such a heterologous mixture of RNP1 gRNAs in a single reaction enables the capability of syndromic testing.
  • As a first non-limiting example of a heterologous mixture of RNP1 gRNAs, the reaction mixture may contain: a number of RNP1s having a gRNA targeting parainfluenza virus 1; a number of RNP1s having a gRNA targeting human metapneumovirus; a number of RNP1s having a gRNA targeting human rhinovirus; a number of RNP1s having a gRNA targeting human enterovirus; and a number of RNP1s having a gRNA targeting coronavirus HKU1. As a second non-limiting example of a heterologous mixture of RNP1 gRNAs, the reaction mixture may contain: a number of RNP1s containing a gRNA targeting two or more SARS-Co-V-2 variants, e.g., B.1.1.7, B.1.351, P.1, B.1.617.2, BA.1, BA.2, BA.2.12.1, BA.4, and BA.5 and subvariants thereof.
  • Reporter Moieties
  • The cascade assay detects a target nucleic acid of interest via detection of a signal generated in the reaction mix by a reporter moiety. In some embodiments the detection of the target nucleic acid of interest occurs in about 10 minutes or less (e.g., 10, 9, 8, 7, 6, 5, 4, 3, 2, or 1 minute or less; e.g., FIGS. 6-9 , and in some embodiments the detection of the target nucleic acid molecule is in about 5 minutes or less (e.g., 5, 4, 3, 2, or 1 minute or less; e.g., FIGS. 10-14 ). In some embodiments, the detection of the target nucleic acid molecule is in about 1 minute (e.g., FIGS. 10-13 ).
  • Depending on the type of reporter moiety used, trans- and/or cis-cleavage by the nucleic acid-guided nuclease in RNP2 releases a signal. In some embodiments, trans-cleavage of stand-alone (e.g., not bound to any blocked nucleic acid molecules) reporter moieties may generate signal changes at rates that are proportional to the cleavage rate, as new RNP2s are activated over time (shown in FIG. 1B and at top of FIG. 4 ). Trans-cleavage by either an activated RNP1 or an activated RNP2 may release a signal. In alternative embodiments, the reporter moiety may be bound to the blocked nucleic acid molecule, where trans-cleavage of the blocked nucleic acid molecule and conversion to an unblocked nucleic acid molecule may generate signal changes at rates that are proportional to the cleavage rate, as new RNP2s are activated over time, thus allowing for real time reporting of results (shown at FIG. 4 , center). In yet another embodiment, the reporter moiety may be bound to a blocked nucleic acid molecule such that cis-cleavage following the binding of the RNP2 to an unblocked nucleic acid molecule releases a PAM distal sequence, which in turn generates a signal at rates that are proportional to the cleavage rate (shown at FIG. 4 , bottom). In this case, activation of RNP2 by cis-(target specific) cleavage of the unblocked nucleic acid molecule directly produces a signal, rather than producing a signal via indiscriminate trans-cleavage activity. Alternatively. or in addition, the reporter moiety may be bound to the gRNA.
  • The reporter moiety may be a synthetic molecule linked or conjugated to a reporter and quencher such as, for example, a TaqMan probe with a dye label (e.g., FAM or FITC) on the 5′ end and a quencher on the 3′ end. The reporter and quencher may be about 20-30 bases apart or less for effective quenching via fluorescence resonance energy transfer (FRET). Alternatively, signal generation may occur through different mechanisms. Other detectable moieties, labels, or reporters can also be used to detect a target nucleic acid of interest as described herein. Reporter moieties can be labeled in a variety of ways, including direct or indirect attachment of a detectable moiety such as a fluorescent moiety, hapten, or colorimetric moiety. Examples of detectable moieties include various radioactive moieties, enzymes, prosthetic groups, fluorescent markers, luminescent markers, bioluminescent markers, metal particles, and protein-protein binding pairs, e.g., protein-antibody binding pairs. Examples of fluorescent moieties include, but are not limited to, yellow fluorescent protein (YFP), green fluorescence protein (GFP), cyan fluorescence protein (CFP), umbelliferone, fluorescein, fluorescein isothiocyanate, rhodamine, dichlorotriazinylamine fluorescein, cyanines, dansyl chloride, phycocyanin, and phycoerythrin. Examples of bioluminescent markers include, but are not limited to, luciferase (e.g., bacterial, firefly, click beetle and the like), luciferin, and aequorin. Examples of enzyme systems having visually detectable signals include, but are not limited to, galactosidases, glucuronidases, phosphatases, peroxidases, and cholinesterases. Identifiable markers also include radioactive elements such as 1251, 35S, 14C, or 3H.
  • The methods used to detect the generated signal will depend on the reporter moiety or moieties used. For example, a radioactive label can be detected using a scintillation counter, photographic film as in autoradiography, or storage phosphor imaging. Fluorescent labels can be detected by exciting the fluorochrome with the appropriate wavelength of light and detecting the resulting fluorescence. The fluorescence can be detected visually, by means of photographic film, by the use of electronic detectors such as charge coupled devices (CCDs) or photomultipliers and the like. Enzymatic labels can be detected by providing the appropriate substrates for the enzyme and detecting the resulting reaction product. Simple colorimetric labels can be detected by observing the color associated with the label. When pairs of fluorophores are used in an assay, fluorophores are chosen that have distinct emission patterns (wavelengths) so that they can be easily distinguished. In some embodiments, the signal can be detected by lateral flow assays (LFAs). Lateral flow tests are simple devices intended to detect the presence or absence of a target nucleic acid of interest in a sample. LFAs can use nucleic acid molecules conjugated nanoparticles (often gold, e.g., RNA-AuNPs or DNA-AuNPs) as a detection probe, which hybridizes to a complementary target sequence. (See FIGS. 5A and 5B and the description thereof below.) The classic example of an LFA is the home pregnancy test.
  • Single-stranded nucleic acid reporter moieties such as ssDNA reporter moieties or RNA molecules can be introduced to show a signal change proportional to the cleavage rate, which increases with every new activated RNP2 complex over time. In some embodiments and as described in detail below, single-stranded nucleic acid reporter moieties can also be embedded into the blocked nucleic acid molecules for real time reporting of results.
  • For example, the method of detecting a target nucleic acid molecule in a sample using a cascade assay as described herein can involve contacting the reaction mix with a labeled detection ssDNA containing a fluorescent resonance energy transfer (FRET) pair, a quencher/phosphor pair, or both. A FRET pair consists of a donor chromophore and an acceptor chromophore, where the acceptor chromophore may be a quencher molecule. FRET pairs (donor/acceptor) suitable for use include, but are not limited to, EDANS/fluorescein, IAEDANS/fluorescein, fluorescein/tetramethylrhodamine, fluorescein/Cy 5, IEDANS/DABCYL, fluorescein/QSY-7, fluorescein/LC Red 640, fluorescein/Cy 5.5, Texas Red/DABCYL, BODIPY/DABCYL, Lucifer yellow/DABCYL, coumarin/DABCYL, and fluorescein/LC Red 705. In addition, a fluorophore/quantum dot donor/acceptor pair can be used. EDANS is (5-((2-Aminoethyl)amino)naphthalene-1-sulfonic acid); IAEDANS is 5-({2-[(iodoacetyl)amino]ethyl}amino)naphthalene-1-sulfonic acid); DABCYL is 4-(4-dimethylaminophenyl)diazenylbenzoic acid. Useful quenchers include, but are not limited to, DABCYL, QSY 7 and QSY 33.
  • In any of the foregoing embodiments, the reporter moiety may comprise one or more modified nucleic acid molecules, containing a modified nucleoside or nucleotide. In some embodiments the modified nucleoside or nucleotide is chosen from 2′-O-methyl (2′-O-Me) modified nucleoside, a 2′-fluoro (2′-F) modified nucleoside, and a phosphorothioate (PS) bond, or any other nucleic acid molecule modifications described below.
  • Nucleic Acid Modifications
  • For any of the nucleic acid molecules described herein (e.g., blocked nucleic acid molecules, blocked primer molecules, gRNAs, template molecules, synthesized activating molecules, and reporter moieties), the nucleic acid molecules may be used in a wholly or partially modified form. Typically, modifications to the blocked nucleic acids, gRNAs, template molecules, reporter moieties, and blocked primer molecules described herein are introduced to optimize the molecule's biophysical properties (e.g., increasing endonuclease resistance and/or increasing thermal stability). Modifications typically are achieved by the incorporation of, for example, one or more alternative nucleosides, alternative sugar moieties, and/or alternative internucleoside linkages.
  • For example, one or more of the cascade assay components may include one or more of the following nucleoside modifications: 5-methylcytosine (5-me-C), 5-hydroxymethyl cytosine, xanthine, hypoxanthine, 2-aminoadenine, 6-methyl and other alkyl derivatives of adenine and guanine, 2-propyl and other alkyl derivatives of adenine and guanine, 2-thiouracil, 2-thiothymine and 2-thiocytosine, 5-halouracil and cytosine, 5-propynyl (—C═C—CH3) uracil and cytosine and other alkynyl derivatives of pyrimidine bases, 6-azo uracil, cytosine and thymine, 5-uracil (pseudouracil), 4-thiouracil, 8-halo, 8-amino, 8-thiol, 8-thioalkyl, 8-hydroxyl and other 8-substituted adenines and guanines, 5-halo particularly 5-bromo, 5-trifluoromethyl and other 5-substituted uracils and cytosines, 7-methylguanine and 7-methyladenine, 2-F-adenine, 2-amino-adenine, 8-azaguanine and 8-azaadenine, 7-deazaguanine and 7-deazaadenine, and/or 3-deazaguanine and 3-deazaadenine. The nucleic acid molecules described herein (e.g., blocked nucleic acid molecules, blocked primer molecules, gRNAs, reporter molecules, synthesized activating molecules, and template molecules) may also include nucleobases in which the purine or pyrimidine base is replaced with other heterocycles, for example 7-deaza-adenine, 7-deazaguanosine, 2-aminopyridine, and/or 2-pyridone. Further modification of the nucleic acid molecules described herein may include nucleobases disclosed in U.S. Pat. No. 3,687,808; Kroschwitz, ed. The Concise Encyclopedia of Polymer Science and Engineering, New York, John Wiley & Sons, 1990, pp. 858-859; Englisch, et al., Angewandte Chemie, 30:613 (1991); and Sanghvi, Chapter 16, Antisense Research and Applications, CRC Press, Gait, ed., 1993, pp. 289-302.
  • In addition to or as an alternative to nucleoside modifications, the cascade assay components may comprise 2′ sugar modifications, including 2′-O-methyl (2′-O-Me), 2′-methoxyethoxy (2′-O—CH2CH2OCH3, also known as 2′-O-(2-methoxyethyl) or 2′-MOE), 2′-dimethylaminooxyethoxy, i.e., a O(CH2)2ON(CH3)2 group, also known as 2′-DMAOE, and/or 2′-dimethylaminoethoxyethoxy (also known in the art as 2′-O-dimethylamino-ethoxy-ethyl or 2′-DMAEOE), i.e., 2′-O—CH2OCH2N(CH3)2. Other possible 2′-modifications that can modify the nucleic acid molecules described herein (i.e., blocked nucleic acids, gRNAs, synthesized activating molecules, reporter molecules, and blocked primer molecules) may include all possible orientations of OH; F; O-, S-, or N-alkyl (mono- or di-); O-, S-, or N-alkenyl (mono- or di-); O-, S- or N-alkynyl (mono- or di-); or O-alkyl-O-alkyl, wherein the alkyl, alkenyl and alkynyl may be substituted or unsubstituted C1 to C10 alkyl or C2 to C10 alkenyl and alkynyl. Other potential sugar substituent groups include, e.g., aminopropoxy (—OCH2CH2CH2NH2), allyl (—CH2—CH═CH2), —O-allyl (—O—CH2—CH═CH2) and fluoro (F). 2′-sugar substituent groups may be in the arabino (up) position or ribo (down) position. In some embodiments, the 2′-arabino modification is 2′-F. Similar modifications may also be made at other positions on the interfering RNA molecule, particularly the 3′ position of the sugar on the 3′ terminal nucleoside or in 2′-5′ linked oligonucleotides and the 5′ position of 5′ terminal nucleotide. Oligonucleotides may also have sugar mimetics such as cyclobutyl moieties in place of the pentofuranosyl sugar.
  • Finally, modifications to the cascade assay components may comprise internucleoside modifications such as phosphorothioates, phosphorodithioates, phosphotriesters, aminoalkylphosphotriesters, methyl and other alkyl phosphonates including 3′-alkylene phosphonates, 5′-alkylene phosphonates, phosphinates, phosphoramidates including 3′-amino phosphoramidate and aminoalkylphosphoramidates, thionophosphoramidates, thionoalkylphosphonates, thionoalkylphosphotriesters, selenophosphates, and boranophosphates having normal 3′-5′ linkages, 2′-5′ linked analogs of these, and those having inverted polarity wherein one or more internucleotide linkages is a 3′ to 3′, 5′ to 5′ or 2′ to 2′ linkage.
  • The Cascade Assay Employing Blocked Nucleic Acids
  • FIG. 1B depicts the cascade assay generally. A specific embodiment of the cascade assay utilizing blocked nucleic acids is depicted in FIG. 2A. In this embodiment, a blocked nucleic acid is used to prevent the activation of RNP2 in the absence of a target nucleic acid of interest. The method in FIG. 2A begins with providing the cascade assay components RNP1 (201), RNP2 (202) and blocked nucleic acid molecules (203). RNP1 (201) comprises a gRNA specific for a target nucleic acid of interest and a nucleic acid-guided nuclease (e.g., Cas 12a or Cas 14 for a DNA target nucleic acid of interest or a Cas 13a for an RNA target nucleic acid of interest) and RNP2 (202) comprises a gRNA specific for an unblocked nucleic acid molecule and a nucleic acid-guided nuclease (again, Cas 12a or Cas 14 for a DNA unblocked nucleic acid molecule or a Cas 13a for an RNA unblocked nucleic acid molecule). As described above, the nucleic acid-guided nucleases in RNP1 (201) and RNP2 (202) can be the same or different depending on the type of target nucleic acid of interest and unblocked nucleic acid molecule. What is key, however, is that the nucleic acid-guided nucleases in RNP1 and RNP2 may be activated to have trans-cleavage activity following initiation of cis-cleavage activity.
  • In a first step, a sample comprising a target nucleic acid of interest (204) is added to the cascade assay reaction mix. The target nucleic acid of interest (204) combines with and activates RNP1 (205) but does not interact with or activate RNP2 (202). Once activated, RNP1 cuts the target nucleic acid of interest (204) via sequence-specific cis-cleavage, which then activates non-specific trans-cleavage of other nucleic acids present in the reaction mix, including the blocked nucleic acid molecules (203). At least one of the blocked nucleic acid molecules (203) becomes an unblocked nucleic acid molecule (206) when the blocking moiety (207) is removed. As described below, “blocking moiety” may refer to nucleoside modifications, topographical configurations such as secondary structures, and/or structural modifications.
  • Once at least one of the blocked nucleic acid molecules (203) is unblocked, the unblocked nucleic acid molecule (206) can then interact with and activate an RNP2 (208) complex. Because the nucleic acid-guided nucleases in the RNP1x (205) and RNP2x (208) have both cis- and trans-cleavage activity, more blocked nucleic acid molecules (203) become unblocked nucleic acid molecules (206) triggering activation of more RNP2 (208) complexes and more trans-cleavage activity in a cascade. FIG. 2A at bottom depicts the concurrent activation of reporter moieties. Intact reporter moieties (209) comprise a quencher (210) and a fluorophore (211) linked by a nucleic acid sequence. As described above in relation to FIG. 1B, the reporter moieties are also subject to trans-cleavage by activated RNP1 (205) and RNP2 (208). The intact reporter moieties (209) become activated reporter moieties (212) when the quencher (210) is separated from the fluorophore (211), emitting a fluorescent signal (213). Signal strength increases rapidly as more blocked nucleic acid molecules (203) become unblocked nucleic acid molecules (206) triggering cis-cleavage activation of more RNP2s (208) and thus more trans-cleavage activity of the reporter moieties (209). Again, here the reporter moieties are shown as separate molecules from the blocked nucleic acid molecules, but other configurations may be employed and are discussed in relation to FIG. 4 . One particularly advantageous feature of the cascade assay is that, with the exception of the gRNA in the RNP1 (gRNA1), the cascade assay components are modular in the sense that the components stay the same no matter what target nucleic acid(s) of interest are being detected.
  • FIG. 2B is a diagram showing an exemplary blocked nucleic acid molecule (220) and an exemplary technique for unblocking the blocked nucleic acid molecules described herein. A blocked single-stranded or double-stranded, circular or linear, DNA or RNA molecule (220) comprising a target strand (222) may contain a partial hybridization with a complementary non-target strand nucleic acid molecule (224) containing unhybridized and cleavable secondary loop structures (226) (e.g., hairpin loops, tetraloops, pseudoknots, junctions, kissing hairpins, internal loops, bulges, and multibranch loops). Trans-cleavage of the loops by, e.g., activated RNP1s or RNP2s, generates short strand nucleotide sequences (228) which, because of the short length and low melting temperature Tm, can dehybridize at room temperature (e.g., 15°-25° C.), thereby unblocking the blocked nucleic acid molecule (220) to create an unblocked nucleic acid molecule (230), enabling the internalization of the unblocked nucleic acid molecule (230) (target strand) into an RNP2, leading to RNP2 activation.
  • A blocked nucleic acid molecule may be single-stranded or double-stranded, circular or linear, and may further contain a partially hybridized nucleic acid sequence containing cleavable secondary loop structures, as exemplified by “L” in FIGS. 2C-2E. Such blocked nucleic acids typically have a low binding affinity, or high dissociation constant (Kd) in relation to binding to RNP2 and may be referred to herein as a high Kd nucleic acid molecule. In the context of the present disclosure, the binding of blocked or unblocked nucleic acid molecules or blocked or unblocked primer molecules to RNP2, low Kd values range from about 100 fM to about 1 aM or lower (e.g., 100 zM) and high Kd values are in the range of 100 nM to about 100 μM (10 mM) and thus are about 105-, 106-, 107-, 108-, 109- to 1010-fold or higher as compared to low Kd values.
  • The blocked nucleic acid molecules (high Kd molecules) described herein can be converted into unblocked nucleic acid molecules (low Kd molecules—also in relation to binding to RNP2) via cleavage of nuclease-cleavable regions (e.g., via active RNP1s and RNP2s). The unblocked nucleic acid molecule has a higher binding affinity for the gRNA in the RNP2 than does the blocked nucleic acid molecule, although there may be some “leakiness” where some blocked nucleic acid molecules are able to interact with the gRNA in the RNP2. However, an unblocked nucleic acid molecule has a substantially higher likelihood than a blocked nucleic acid molecule to hybridize with the gRNA of RNP2.
  • Once the unblocked nucleic acid molecule is bound to RNP2, the RNP2 activation triggers trans-cleavage activity, which in turn leads to more RNP2 activation by further cleaving blocked nucleic acid molecules, resulting in a positive feedback loop.
  • In embodiments where blocked nucleic acid molecules are linear and/or form a secondary structure, the blocked nucleic acid molecules may be single-stranded (ss) or double-stranded (ds) and contain a first nucleotide sequence and a second nucleotide sequence. The first nucleotide sequence has sufficient complementarity to hybridize to a gRNA of RNP2, and the second nucleotide sequence does not. The first and second nucleotide sequences of a blocked nucleic acid molecule may be on the same nucleic acid molecule (e.g., for single-strand embodiments) or on separate nucleic acid molecules (e.g., for double strand embodiments). Trans-cleavage (e.g., via RNP1 or RNP2) of the second nucleotide sequence converts the blocked nucleic acid molecule to a single-strand unblocked nucleic acid molecule. The unblocked nucleic acid molecule contains only the first nucleotide sequence, which has sufficient complementarity to hybridize to the gRNA of RNP2, thereby activating the trans-endonuclease activity of RNP2.
  • In some embodiments, the second nucleotide sequence at least partially hybridizes to the first nucleotide sequence, resulting in a secondary structure containing at least one loop (e.g., hairpin loops, tetraloops, pseudoknots, junctions, kissing hairpins, internal loops, bulges, and multibranch loops). Such loops block the nucleic acid molecule from binding or incorporating into an RNP complex in a manner to initiate trans cleavage (see, e.g., the exemplary structures in FIGS. 2C-2E).
  • In some embodiments, the blocked nucleic acid molecule may contain a protospacer adjacent motif (PAM) sequence, or partial PAM sequence, positioned between the first and second nucleotide sequences, where the first sequence is 5′ to the PAM sequence, or partial PAM sequence, (see FIG. 2G). Inclusion of a PAM sequence may increase the reaction kinetics internalizing the unblocked nucleic acid molecule into RNP2 and thus decrease the time to detection. In other embodiments, the blocked nucleic acid molecule does not contain a PAM sequence.
  • In some embodiments, the blocked nucleic acid molecules (i.e., high Kd nucleic acid molecules—in relation to binding to RNP2) of the disclosure may include a structure represented by Formula I (e.g., FIG. 2C), Formula II (e.g., FIG. 2D), Formula III (e.g., FIG. 2E), or Formula IV (e.g., FIG. 2F) wherein Formulas I-IV are in the 5′-to-3 direction:

  • A-(B-L)J-C-M-T-D  (Formula I);
      • wherein A is 0-15 nucleotides in length;
      • B is 4-12 nucleotides in length;
      • L is 3-25 nucleotides in length;
      • J is an integer between 1 and 10;
      • C is 4-15 nucleotides in length;
      • M is 1-25 nucleotides in length or is absent, wherein if M is absent then A-(B-L)J-C and T-D are separate nucleic acid strands;
      • T is 17-135 nucleotides in length (e.g., 17-100, 17-50, or 17-25) and comprises a sequence complementary to B and C; and
      • D is 0-10 nucleotides in length and comprises a sequence complementary to A;

  • D-T-T′-C-(L-B)J-A  (Formula II);
      • wherein D is 0-10 nucleotides in length;
      • T-T′ is 17-135 nucleotides in length (e.g., 17-100, 17-50, or 17-25);
      • T′ is 1-10 nucleotides in length and does not hybridize with T;
      • C is 4-15 nucleotides in length and comprises a sequence complementary to T;
      • L is 3-25 nucleotides in length and does not hybridize with T;
      • B is 4-12 nucleotides in length and comprises a sequence complementary to T;
      • J is an integer between 1 and 10;
      • A is 0-15 nucleotides in length and comprises a sequence complementary to D;

  • T-D-M-A-(B-L)J-C  (Formula III);
      • wherein T is 17-135 nucleotides in length (e.g., 17-100, 17-50, or 17-25);
      • D is 0-10 nucleotides in length;
      • M is 1-25 nucleotides in length or is absent, wherein if M is absent then T-D and A-(B-L)J-C are separate nucleic acid strands;
      • A is 0-15 nucleotides in length and comprises a sequence complementary to D;
      • B is 4-12 nucleotides in length and comprises a sequence complementary to T;
      • L is 3-25 nucleotides in length;
      • J is an integer between 1 and 10; and
      • C is 4-15 nucleotides in length;

  • T-D-M-A-Lp-C  (Formula IV);
      • wherein T is 17-31 nucleotides in length (e.g., 17-100, 17-50, or 17-25);
      • D is 0-15 nucleotides in length;
      • M is 1-25 nucleotides in length;
      • A is 0-15 nucleotides in length and comprises a sequence complementary to D; and
      • L is 3-25 nucleotides in length;
      • p is 0 or 1;
      • C is 4-15 nucleotides in length and comprises a sequence complementary to T.
        In alternative embodiments of any of these molecules, T (or T-T′) can have a maximum length of 1000 nucleotides, e.g., at most 200, at most 135, at most 75, at most 50, or at most 25.
  • Nucleotide mismatches can be introduced in any of the above structures containing double strand segments (for example, where M is absent in Formula I or Formula III) to reduce the melting temperature (Tm) of the segment such that once the loop (L) is cleaved, the double strand segment is unstable and dehybridizes rapidly. The percentage of nucleotide mismatches of a given segment may vary between 0% and 50%; however, the maximum number of nucleotide mismatches is limited to a number where the secondary loop structure still forms. “Segments” in the above statement refers to A, B, and C. In other words, the number of hybridized bases can be less than or equal to the length of each double strand segment and vary based on number of mismatches introduced.
  • In any blocked nucleic acid molecule having the structure of Formula I, III, or IV, T will have sequence complementarity to a nucleotide sequence (e.g., a spacer sequence) within a gRNA of RNP2. The nucleotide sequence of T is to be designed such that hybridization of T to the gRNA of RNP2 activates the trans-nuclease activity of RNP2. In any blocked nucleic acid molecule having structure of Formula II, T-T′ will have sequence complementarity to a sequence (e.g., a spacer sequence) within the gRNA of RNP2. The nucleotide sequence of T-T′ is to be designed such that hybridization of T-T′ to the gRNA of RNP2 activates the trans-nuclease activity of RNP2. For T or T-T′, full complementarity to the gRNA is not necessarily required, provided there is sufficient complementarity to cause hybridization and trans-cleavage activation of RNP2.
  • Exemplary nucleotide sequences of blocked nucleic acid molecules (e.g., SEQ ID NOs: 14-1421) include those in Table 1.
  • TABLE 1
    Nucleotide sequences of blocked nucleic
    acid molecules.
    SEQ ID NO: Sequence
    SEQ ID NO: 14 GATACTTTTTATTTTTTATATAT
    ATATATATTTTTTATTTTTATA
    TATATATATATAGTATC
    SEQ ID NO: 15 GACACTTTTTATTTTTTATATAT
    ATATATATTTTTTATTTTTATA
    TATATATATATAGTGTC
    SEQ ID NO: 16 GATACTTTTTATTTTTGATATAT
    ATATATATTTTTTATTTTTATA
    TATATATATATCGTATC
    SEQ ID NO: 17 GGATCTTTTTATTTTTTATATAT
    ATATATATTTTTTATTTTTATA
    TATATATATATAGATCC
    SEQ ID NO: 18 GACACTTTTTATTTTTGATATAT
    ATATATATTTTTTATTTTTATA
    TATATATATATCGTGTC
    SEQ ID NO: 19 GGATCTTTTTATTTTTGATATAT
    ATATATATTTTTTATTTTTATA
    TATATATATATCGATCC
    SEQ ID NO: 20 GCGTCTTTTTATTTTTTATATAT
    ATATATATTTTTTATTTTTATA
    TATATATATATAGACGC
    SEQ ID NO: 21 GCGTCTTTTTATTTTTGATATAT
    ATATATATTTTTTATTTTTATA
    TATATATATATCGACGC
    SEQ ID NO: 22 GTATACTTTTTATTTTTTATATA
    TATATATATTTTTATTTTTTAT
    ATATATATATAGTATAC
    SEQ ID NO: 23 GTGATCTTTTTATTTTTTATATA
    TATATATATTTTTATTTTTTAT
    ATATATATATAGATCAC
    SEQ ID NO: 24 GTATACTTTTTATTTTTGATATA
    TATATATATTTTTATTTTTTAT
    ATATATATATCGTATAC
    SEQ ID NO: 25 GTATACTTTTTATTTTTGATATA
    TGTATATATTTTTATTTTTTAT
    ATACATATATCGTATAC
    SEQ ID NO: 26 GGATACTTTTTATTTTTTATATA
    TATATATATTTTTATTTTTTAT
    ATATATATATAGTATCC
    SEQ ID NO: 27 GTGATCTTTTTATTTTTGATATA
    TATATATATTTTTATTTTTTAT
    ATATATATATCGATCAC
    SEQ ID NO: 28 GTGATCTTTTTATTTTTGATATA
    TGTATATATTTTTATTTTTTAT
    ATACATATATCGATCAC
    SEQ ID NO: 29 GGATACTTTTTATTTTTGATATA
    TATATATATTTTTATTTTTTAT
    ATATATATATCGTATCC
    SEQ ID NO: 30 GGATACTTTTTATTTTTGATATA
    TGTATATATTTTTATTTTTTAT
    ATACATATATCGTATCC
    SEQ ID NO: 31 GCGATCTTTTTATTTTTTATATA
    TATATATATTTTTATTTTTTAT
    ATATATATATAGATCGC
    SEQ ID NO: 32 GCGATCTTTTTATTTTTGATATA
    TATATATATTTTTATTTTTTAT
    ATATATATATCGATCGC
    SEQ ID NO: 33 GCGATCTTTTTATTTTTGATATA
    TGTATATATTTTTATTTTTTAT
    ATACATATATCGATCGC
    SEQ ID NO: 34 GATATACTTTTTATTTTTTATAT
    ATATATATTTTTTATTTTTATA
    TATATATATAGTATATC
    SEQ ID NO: 35 GATATATTTTTTATTTTTGATAT
    ATATATATTTTTTATTTTTATA
    TATATATATCATATATC
    SEQ ID NO: 36 GATATATTTTTTATTTTTGATAT
    ATGTATATTTTTTATTTTTATA
    TACATATATCATATATC
    SEQ ID NO: 37 GTGATACTTTTTATTTTTTATAT
    ATATATATTTTTTATTTTTATA
    TATATATATAGTATCAC
    SEQ ID NO: 38 GATATACTTTTTATTTTTGATAT
    ATATATATTTTTTATTTTTATA
    TATATATATCGTATATC
    SEQ ID NO: 39 GATATACTTTTTATTTTTGATAT
    ATGTATATTTTTTATTTTTATA
    TACATATATCGTATATC
    SEQ ID NO: 40 GGTATACTTTTTATTTTTTATAT
    ATATATATTTTTTATTTTTATA
    TATATATATAGTATACC
    SEQ ID NO: 41 GTGATACTTTTTATTTTTGATAT
    ATATATATTTTTTATTTTTATA
    TATATATATCGTATCAC
    SEQ ID NO: 42 GTGATACTTTTTATTTTTGATAT
    ATGTATATTTTTTATTTTTATA
    TACATATATCGTATCAC
    SEQ ID NO: 43 GGTATACTTTTTATTTTTGATAT
    ATATATATTTTTTATTTTTATA
    TATATATATCGTATACC
    SEQ ID NO: 44 GGTATACTTTTTATTTTTGATAT
    ATGTATATTTTTTATTTTTATA
    TACATATATCGTATACC
    SEQ ID NO: 45 GGTGTACTTTTTATTTTTTATAT
    ATATATATTTTTTATTTTTATA
    TATATATATAGTACACC
    SEQ ID NO: 46 GGTGTACTTTTTATTTTTGATAT
    ATATATATTTTTTATTTTTATA
    TATATATATCGTACACC
    SEQ ID NO: 47 GGTGTACTTTTTATTTTTGATAT
    ATGTATATTTTTTATTTTTATA
    TACATATATCGTACACC
    SEQ ID NO: 48 GTATATACTTTTTATTTTTTATA
    TATATATATTTTTATTTTTTAT
    ATATATATAGTATATAC
    SEQ ID NO: 49 GTATATACTTTTTATTTTTGATA
    TATATATATTTTTATTTTTTAT
    ATATATATCGTATATAC
    SEQ ID NO: 50 GTATATACTTTTTATTTTTGATA
    TATGTATATTTTTATTTTTTAT
    ACATATATCGTATATAC
    SEQ ID NO: 51 GTATATACTTTTTATTTTTGATC
    ATGTATATTTTTTATTTTTATA
    TACATGATCGTATATAC
    SEQ ID NO: 52 GTATATACTTTTTATTTTTGATC
    ATATATGTTTTTTATTTTTACA
    TATATGATCGTATATAC
    SEQ ID NO: 53 GGATATACTTTTTATTTTTTATA
    TATATATATTTTTATTTTTTAT
    ATATATATAGTATATCC
    SEQ ID NO: 54 GGATATACTTTTTATTTTTGATA
    TATATATATTTTTATTTTTTAT
    ATATATATCGTATATCC
    SEQ ID NO: 55 GGATATACTTTTTATTTTTGATA
    TATGTATATTTTTATTTTTTAT
    ACATATATCGTATATCC
    SEQ ID NO: 56 GGATATACTTTTTATTTTTGATC
    ATGTATATTTTTTATTTTTATA
    TACATGATCGTATATCC
    SEQ ID NO: 57 GGATATACTTTTTATTTTTGATC
    ATATATGTTTTTTATTTTTACA
    TATATGATCGTATATCC
    SEQ ID NO: 58 GGTGATACTTTTTATTTTTTATA
    TATATATATTTTTATTTTTTAT
    ATATATATAGTATCACC
    SEQ ID NO: 59 GGTGATACTTTTTATTTTTGATA
    TATATATATTTTTATTTTTTAT
    ATATATATCGTATCACC
    SEQ ID NO: 60 GGTGATACTTTTTATTTTTGATA
    TATGTATATTTTTATTTTTTAT
    ACATATATCGTATCACC
    SEQ ID NO: 61 GGTGATACTTTTTATTTTTGATC
    ATGTATATTTTTTATTTTTATA
    TACATGATCGTATCACC
    SEQ ID NO: 62 GGTGATACTTTTTATTTTTGATC
    ATATATGTTTTTTATTTTTACA
    TATATGATCGTATCACC
    SEQ ID NO: 63 GGTGATCCTTTTTATTTTTTATA
    TATATATATTTTTATTTTTTAT
    ATATATATAGGATCACC
    SEQ ID NO: 64 GGTGATCCTTTTTATTTTTGATA
    TATATATATTTTTATTTTTTAT
    ATATATATCGGATCACC
    SEQ ID NO: 65 GGTGATCCTTTTTATTTTTGATA
    TATGTATATTTTTATTTTTTAT
    ACATATATCGGATCACC
    SEQ ID NO: 66 GGTGATCCTTTTTATTTTTGATC
    ATGTATATTTTTTATTTTTATA
    TACATGATCGGATCACC
    SEQ ID NO: 67 GGTGATCCTTTTTATTTTTGATC
    ATATATGTTTTTTATTTTTACA
    TATATGATCGGATCACC
    SEQ ID NO: 68 GATATATCACTTTTTATTTTTTA
    TATATATATTTTTATTTTTTAT
    ATATATAGTGATATATC
    SEQ ID NO: 69 GTATATACATTTTTTATTTTTGA
    TATATATATTTTTATTTTTTAT
    ATATATCATGTATATAC
    SEQ ID NO: 70 GTATATACATTTTTTATTTTTGA
    TATATGTATTTTTATTTTTTAC
    ATATATCATGTATATAC
    SEQ ID NO: 71 GTATATACATTTTTTATTTTTGA
    TCATGTATTTTTTATTTTTATA
    CATGATCATGTATATAC
    SEQ ID NO: 72 GTATATACATTTTTTATTTTTGA
    TCATATATTTTTTATTTTTATA
    TATGATCATGTATATAC
    SEQ ID NO: 73 GGATATACACTTTTTATTTTTTA
    TATATATATTTTTATTTTTTAT
    ATATATAGTGTATATCC
    SEQ ID NO: 74 GGATATACATTTTTTATTTTTGA
    TATATATATTTTTATTTTTTAT
    ATATATCATGTATATCC
    SEQ ID NO: 75 GGATATACATTTTTTATTTTTGA
    TATATGTATTTTTATTTTTTAC
    ATATATCATGTATATCC
    SEQ ID NO: 76 GGATATACATTTTTTATTTTTGA
    TCATGTATTTTTTATTTTTATA
    CATGATCATGTATATCC
    SEQ ID NO: 77 GGATATACATTTTTTATTTTTGA
    TCATATATTTTTTATTTTTATA
    TATGATCATGTATATCC
    SEQ ID NO: 78 GGGTATATACTTTTTATTTTTTA
    TATATATATTTTTATTTTTTAT
    ATATATAGTATATACCC
    SEQ ID NO: 79 GGATATACACTTTTTATTTTTGA
    TATATATATTTTTATTTTTTAT
    ATATATCGTGTATATCC
    SEQ ID NO: 80 GGATATACACTTTTTATTTTTGA
    TATATGTATTTTTATTTTTTAC
    ATATATCGTGTATATCC
    SEQ ID NO: 81 GGATATACACTTTTTATTTTTGA
    TCATGTATTTTTTATTTTTATA
    CATGATCGTGTATATCC
    SEQ ID NO: 82 GGATATACACTTTTTATTTTTGA
    TCATATATTTTTTATTTTTATA
    TATGATCGTGTATATCC
    SEQ ID NO: 83 GGGTATATACTTTTTATTTTTGA
    TATATATATTTTTATTTTTTAT
    ATATATCGTATATACCC
    SEQ ID NO: 84 GGGTATATACTTTTTATTTTTGA
    TATATGTATTTTTATTTTTTAC
    ATATATCGTATATACCC
    SEQ ID NO: 85 GGGTATATACTTTTTATTTTTGA
    TCATGTATTTTTTATTTTTATA
    CATGATCGTATATACCC
    SEQ ID NO: 86 GGGTATATACTTTTTATTTTTGA
    TCATATATTTTTTATTTTTATA
    TATGATCGTATATACCC
    SEQ ID NO: 87 GGATGTACACTTTTTATTTTTTA
    TATATATATTTTTATTTTTTAT
    ATATATAGTGTACATCC
    SEQ ID NO: 88 GGATGTACACTTTTTATTTTTGA
    TATATATATTTTTATTTTTTAT
    ATATATCGTGTACATCC
    SEQ ID NO: 89 GGATGTACACTTTTTATTTTTGA
    TATATGTATTTTTATTTTTTAC
    ATATATCGTGTACATCC
    SEQ ID NO: 90 GGATGTACACTTTTTATTTTTGA
    TCATGTATTTTTTATTTTTATA
    CATGATCGTGTACATCC
    SEQ ID NO: 91 GGATGTACACTTTTTATTTTTGA
    TCATATATTTTTTATTTTTATA
    TATGATCGTGTACATCC
    SEQ ID NO: 92 GTATATACTTTTTATTTTTTATA
    TATATATATATTTTTTATTTTT
    ATATATATATATATAGTATATAC
    SEQ ID NO: 93 GTATATACTTTTTATTTTTGATA
    TATATATATATTTTTTATTTTT
    ATATATATATATATCGTATATAC
    SEQ ID NO: 94 GGATATACTTTTTATTTTTTATA
    TATATATATATTTTTTATTTTT
    ATATATATATATATAGTATATCC
    SEQ ID NO: 95 GGATATACTTTTTATTTTTGATA
    TATATATATATTTTTTATTTTT
    ATATATATATATATCGTATATCC
    SEQ ID NO: 96 GGTGATACTTTTTATTTTTTATA
    TATATATATATTTTTTATTTTT
    ATATATATATATATAGTATCACC
    SEQ ID NO: 97 GGTGATACTTTTTATTTTTGATA
    TATATATATATTTTTTATTTTT
    ATATATATATATATCGTATCACC
    SEQ ID NO: 98 GGTGATCCTTTTTATTTTTTATA
    TATATATATATTTTTTATTTTT
    ATATATATATATATAGGATCACC
    SEQ ID NO: 99 GGTGATCCTTTTTATTTTTGATA
    TATATATATATTTTTTATTTTT
    ATATATATATATATCGGATCACC
    SEQ ID NO: 100 GATATATCACTTTTTATTTTTTA
    TATATATATATATTTTTTATTT
    TTATATATATATATATAGTGATA
    TATC
    SEQ ID NO: 101 GTATATACATTTTTTATTTTTGA
    TATATATATATATTTTTTATTT
    TTATATATATATATATCATGTAT
    ATAC
    SEQ ID NO: 102 GGATATACACTTTTTATTTTTTA
    TATATATATATATTTTTTATTT
    TTATATATATATATATAGTGTAT
    ATCC
    SEQ ID NO: 103 GGATATACATTTTTTATTTTTGA
    TATATATATATATTTTTTATTT
    TTATATATATATATATCATGTAT
    ATCC
    SEQ ID NO: 104 GGGTATATACTTTTTATTTTTTA
    TATATATATATATTTTTTATTT
    TTATATATATATATATAGTATAT
    ACCC
    SEQ ID NO: 105 GGATATACACTTTTTATTTTTGA
    TATATATATATATTTTTTATTT
    TTATATATATATATATCGTGTAT
    ATCC
    SEQ ID NO: 106 GGGTATATACTTTTTATTTTTGA
    TATATATATATATTTTTTATTT
    TTATATATATATATATCGTATAT
    ACCC
    SEQ ID NO: 107 GTATATACTTTTTATTTTTTATA
    TATATATATATTTTTATTTTTT
    ATATATATATATAGTATATAC
    SEQ ID NO: 108 GTATATACTTTTTATTTTTGATA
    TATATATATATTTTTATTTTTT
    ATATATATATATCGTATATAC
    SEQ ID NO: 109 GTATATACTTTTTATTTTTGATA
    TATGTATATATTTTTATTTTTT
    ATATACATATATCGTATATAC
    SEQ ID NO: 110 GGATATACTTTTTATTTTTTATA
    TATATATATATTTTTATTTTTT
    ATATATATATATAGTATATCC
    SEQ ID NO: 111 GGATATACTTTTTATTTTTGATA
    TATATATATATTTTTATTTTTT
    ATATATATATATCGTATATCC
    SEQ ID NO: 112 GGATATACTTTTTATTTTTGATA
    TATGTATATATTTTTATTTTTT
    ATATACATATATCGTATATCC
    SEQ ID NO: 113 GGTGATACTTTTTATTTTTTATA
    TATATATATATTTTTATTTTTT
    ATATATATATATAGTATCACC
    SEQ ID NO: 114 GGTGATACTTTTTATTTTTGATA
    TATATATATATTTTTATTTTTT
    ATATATATATATCGTATCACC
    SEQ ID NO: 115 GGTGATACTTTTTATTTTTGATA
    TATGTATATATTTTTATTTTTT
    ATATACATATATCGTATCACC
    SEQ ID NO: 116 GGTGATCCTTTTTATTTTTTATA
    TATATATATATTTTTATTTTTT
    ATATATATATATAGGATCACC
    SEQ ID NO: 117 GGTGATCCTTTTTATTTTTGATA
    TATATATATATTTTTATTTTTT
    ATATATATATATCGGATCACC
    SEQ ID NO: 118 GGTGATCCTTTTTATTTTTGATA
    TATGTATATATTTTTATTTTTT
    ATATACATATATCGGATCACC
    SEQ ID NO: 119 GATATATCACTTTTTATTTTTTA
    TATATATATATATTTTTATTTT
    TTATATATATATATAGTGATATA
    TC
    SEQ ID NO: 120 GTATATACATTTTTTATTTTTGA
    TATATATATATATTTTTATTTT
    TTATATATATATATCATGTATAT
    AC
    SEQ ID NO: 121 GTATATACATTTTTTATTTTTGA
    TATATGTATATATTTTTATTTT
    TTATATACATATATCATGTATAT
    AC
    SEQ ID NO: 122 GGATATACACTTTTTATTTTTTA
    TATATATATATATTTTTATTTT
    TTATATATATATATAGTGTATAT
    CC
    SEQ ID NO: 123 GGATATACATTTTTTATTTTTGA
    TATATATATATATTTTTATTTT
    TTATATATATATATCATGTATAT
    CC
    SEQ ID NO: 124 GGATATACATTTTTTATTTTTGA
    TATATGTATATATTTTTATTTT
    TTATATACATATATCATGTATAT
    CC
    SEQ ID NO: 125 GGGTATATACTTTTTATTTTTTA
    TATATATATATATTTTTATTTT
    TTATATATATATATAGTATATAC
    CC
    SEQ ID NO: 126 GGATATACACTTTTTATTTTTGA
    TATATATATATATTTTTATTTT
    TTATATATATATATCGTGTATAT
    CC
    SEQ ID NO: 127 GGATATACACTTTTTATTTTTGA
    TATATGTATATATTTTTATTTT
    TTATATACATATATCGTGTATAT
    CC
    SEQ ID NO: 128 GGGTATATACTTTTTATTTTTGA
    TATATATATATATTTTTATTTT
    TTATATATATATATCGTATATAC
    CC
    SEQ ID NO: 129 GGGTATATACTTTTTATTTTTGA
    TATATGTATATATTTTTATTTT
    TTATATACATATATCGTATATAC
    CC
    SEQ ID NO: 130 GATATATCACTTTTTATTTTTTA
    TATATATATATTTTTTATTTTT
    ATATATATATATAGTGATATATC
    SEQ ID NO: 131 GTATATACATTTTTTATTTTTGA
    TATATATATATTTTTTATTTTT
    ATATATATATATCATGTATATAC
    SEQ ID NO: 132 GTATATACATTTTTTATTTTTGA
    TATATGTATATTTTTTATTTTT
    ATATACATATATCATGTATATAC
    SEQ ID NO: 133 GGATATACACTTTTTATTTTTTA
    TATATATATATTTTTTATTTTT
    ATATATATATATAGTGTATATCC
    SEQ ID NO: 134 GGATATACATTTTTTATTTTTGA
    TATATATATATTTTTTATTTTT
    ATATATATATATCATGTATATCC
    SEQ ID NO: 135 GGATATACATTTTTTATTTTTGA
    TATATGTATATTTTTTATTTTT
    ATATACATATATCATGTATATCC
    SEQ ID NO: 136 GGGTATATACTTTTTATTTTTTA
    TATATATATATTTTTTATTTTT
    ATATATATATATAGTATATACCC
    SEQ ID NO: 137 GGATATACACTTTTTATTTTTGA
    TATATATATATTTTTTATTTTT
    ATATATATATATCGTGTATATCC
    SEQ ID NO: 138 GGATATACACTTTTTATTTTTGA
    TATATGTATATTTTTTATTTTT
    ATATACATATATCGTGTATATCC
    SEQ ID NO: 139 GGGTATATACTTTTTATTTTTGA
    TATATATATATTTTTTATTTTT
    ATATATATATATCGTATATACCC
    SEQ ID NO: 140 GGGTATATACTTTTTATTTTTGA
    TATATGTATATTTTTTATTTTT
    ATATACATATATCGTATATACCC
    SEQ ID NO: 141 GATATATCACTTTTTATTTTTTA
    TATATATATATTTTTATTTTTT
    ATATATATATAGTGATATATC
    SEQ ID NO: 142 GTATATACATTTTTTATTTTTGA
    TATATATATATTTTTATTTTTT
    ATATATATATCATGTATATAC
    SEQ ID NO: 143 GTATATACATTTTTTATTTTTGA
    TATATGTATATTTTTATTTTTT
    ATACATATATCATGTATATAC
    SEQ ID NO: 144 GTATATACATTTTTTATTTTTGA
    TCATGTATATTTTTTATTTTTA
    TATACATGATCATGTATATAC
    SEQ ID NO: 145 GTATATACATTTTTTATTTTTGA
    TCATATATGTTTTTTATTTTTA
    CATATATGATCATGTATATAC
    SEQ ID NO: 146 GGATATACACTTTTTATTTTTTA
    TATATATATATTTTTATTTTTT
    ATATATATATAGTGTATATCC
    SEQ ID NO: 147 GGATATACATTTTTTATTTTTGA
    TATATATATATTTTTATTTTTT
    ATATATATATCATGTATATCC
    SEQ ID NO: 148 GGATATACATTTTTTATTTTTGA
    TATATGTATATTTTTATTTTTT
    ATACATATATCATGTATATCC
    SEQ ID NO: 149 GGATATACATTTTTTATTTTTGA
    TCATGTATATTTTTTATTTTTA
    TATACATGATCATGTATATCC
    SEQ ID NO: 150 GGATATACATTTTTTATTTTTGA
    TCATATATGTTTTTTATTTTTA
    CATATATGATCATGTATATCC
    SEQ ID NO: 151 GGGTATATACTTTTTATTTTTTA
    TATATATATATTTTTATTTTTT
    ATATATATATAGTATATACCC
    SEQ ID NO: 152 GGATATACACTTTTTATTTTTGA
    TATATATATATTTTTATTTTTT
    ATATATATATCGTGTATATCC
    SEQ ID NO: 153 GGATATACACTTTTTATTTTTGA
    TATATGTATATTTTTATTTTTT
    ATACATATATCGTGTATATCC
    SEQ ID NO: 154 GGATATACACTTTTTATTTTTGA
    TCATGTATATTTTTTATTTTTA
    TATACATGATCGTGTATATCC
    SEQ ID NO: 155 GGATATACACTTTTTATTTTTGA
    TCATATATGTTTTTTATTTTTA
    CATATATGATCGTGTATATCC
    SEQ ID NO: 156 GGGTATATACTTTTTATTTTTGA
    TATATATATATTTTTATTTTTT
    ATATATATATCGTATATACCC
    SEQ ID NO: 157 GGGTATATACTTTTTATTTTTGA
    TATATGTATATTTTTATTTTTT
    ATACATATATCGTATATACCC
    SEQ ID NO: 158 GGGTATATACTTTTTATTTTTGA
    TCATGTATATTTTTTATTTTTA
    TATACATGATCGTATATACCC
    SEQ ID NO: 159 GGGTATATACTTTTTATTTTTGA
    TCATATATGTTTTTTATTTTTA
    CATATATGATCGTATATACCC
    SEQ ID NO: 160 GTACATATATTTTTTTATTTTTG
    ATATATATATTTTTATTTTTTA
    TATATATCAATATATGTAC
    SEQ ID NO: 161 GTACATATATTTTTTTATTTTTG
    ATATATGTATTTTTATTTTTTA
    CATATATCAATATATGTAC
    SEQ ID NO: 162 GTACATATATTTTTTTATTTTTG
    ATCATGTATTTTTTATTTTTAT
    ACATGATCAATATATGTAC
    SEQ ID NO: 163 GTACATATATTTTTTTATTTTTG
    ATCATATATTTTTTATTTTTAT
    ATATGATCAATATATGTAC
    SEQ ID NO: 164 GATGTATATACTTTTTATTTTTT
    ATATATATATTTTTATTTTTTA
    TATATATAGTATATACATC
    SEQ ID NO: 165 GGTACATATATTTTTTATTTTTG
    ATATATATATTTTTATTTTTTA
    TATATATCATATATGTACC
    SEQ ID NO: 166 GGTACATATATTTTTTATTTTTG
    ATATATGTATTTTTATTTTTTA
    CATATATCATATATGTACC
    SEQ ID NO: 167 GGTACATATATTTTTTATTTTTG
    ATCATGTATTTTTTATTTTTAT
    ACATGATCATATATGTACC
    SEQ ID NO: 168 GGTACATATATTTTTTATTTTTG
    ATCATATATTTTTTATTTTTAT
    ATATGATCATATATGTACC
    SEQ ID NO: 169 CGATCATATATTTTTTTATTTTT
    GATATATATATTTTTATTTTTT
    ATATATATCAATATATGATCG
    SEQ ID NO: 170 CGATCATATATTTTTTTATTTTT
    GATATATGTATTTTTATTTTTT
    ACATATATCAATATATGATCG
    SEQ ID NO: 171 CGATCATATATTTTTTTATTTTT
    GATCATGTATTTTTTATTTTTA
    TACATGATCAATATATGATCG
    SEQ ID NO: 172 CGATCATATATTTTTTTATTTTT
    GATCATATATTTTTTATTTTTA
    TATATGATCAATATATGATCG
    SEQ ID NO: 173 GATACTTTTTATTTTTTATAAAT
    ATATATATTTTTTATTTTTATA
    TATATATATATAGTATC
    SEQ ID NO: 174 GACACTTTTTATTTTTTATAAAT
    ATATATATTTTTTATTTTTATA
    TATATATATATAGTGTC
    SEQ ID NO: 175 GATACTTTTTATTTTTGATAAAT
    ATATATATTTTTTATTTTTATA
    TATATATATATCGTATC
    SEQ ID NO: 176 GATACTTTTTATTTTTGATAAAT
    GTATATATTTTTTATTTTTATA
    TATACATATATCGTATC
    SEQ ID NO: 177 GATACTTTTTATTTTTGATGATG
    TATATATATTTTTATTTTTTAT
    ATATACATGATCGTATC
    SEQ ID NO: 178 GATACTTTTTATTTTTGATGATA
    TATGTACTTTTTTATTTTTAGT
    ACATATATGATCGTATC
    SEQ ID NO: 179 GGATCTTTTTATTTTTTATAAAT
    ATATATATTTTTTATTTTTATA
    TATATATATATAGATCC
    SEQ ID NO: 180 GACACTTTTTATTTTTGATAAAT
    ATATATATTTTTTATTTTTATA
    TATATATATATCGTGTC
    SEQ ID NO: 181 GACACTTTTTATTTTTGATAAAT
    GTATATATTTTTTATTTTTATA
    TATACATATATCGTGTC
    SEQ ID NO: 182 GACACTTTTTATTTTTGATGATG
    TATATATATTTTTATTTTTTAT
    ATATACATGATCGTGTC
    SEQ ID NO: 183 GACACTTTTTATTTTTGATGATA
    TATGTACTTTTTTATTTTTAGT
    ACATATATGATCGTGTC
    SEQ ID NO: 184 GGATCTTTTTATTTTTGATAAAT
    ATATATATTTTTTATTTTTATA
    TATATATATATCGATCC
    SEQ ID NO: 185 GGATCTTTTTATTTTTGATAAAT
    GTATATATTTTTTATTTTTATA
    TATACATATATCGATCC
    SEQ ID NO: 186 GGATCTTTTTATTTTTGATGATG
    TATATATATTTTTATTTTTTAT
    ATATACATGATCGATCC
    SEQ ID NO: 187 GGATCTTTTTATTTTTGATGATA
    TATGTACTTTTTTATTTTTAGT
    ACATATATGATCGATCC
    SEQ ID NO: 188 GCGTCTTTTTATTTTTTATAAAT
    ATATATATTTTTTATTTTTATA
    TATATATATATAGACGC
    SEQ ID NO: 189 GCGTCTTTTTATTTTTGATAAAT
    ATATATATTTTTTATTTTTATA
    TATATATATATCGACGC
    SEQ ID NO: 190 GCGTCTTTTTATTTTTGATAAAT
    GTATATATTTTTTATTTTTATA
    TATACATATATCGACGC
    SEQ ID NO: 191 GCGTCTTTTTATTTTTGATGATG
    TATATATATTTTTATTTTTTAT
    ATATACATGATCGACGC
    SEQ ID NO: 192 GCGTCTTTTTATTTTTGATGATA
    TATGTACTTTTTTATTTTTAGT
    ACATATATGATCGACGC
    SEQ ID NO: 193 GTATACTTTTTATTTTTGATAAA
    TATATATATTTTTATTTTTTAT
    ATATATATATCGTATAC
    SEQ ID NO: 194 GTATACTTTTTATTTTTGATAAA
    TGTATATATTTTTATTTTTTAT
    ATACATATATCGTATAC
    SEQ ID NO: 195 GTATACTTTTTATTTTTGATGAT
    GTATATATTTTTTATTTTTATA
    TATACATGATCGTATAC
    SEQ ID NO: 196 GTATACTTTTTATTTTTGATGAT
    ATATGTACTTTTTATTTTTGTA
    CATATATGATCGTATAC
    SEQ ID NO: 197 GTGATCTTTTTATTTTTGATAAA
    TATATATATTTTTATTTTTTAT
    ATATATATATCGATCAC
    SEQ ID NO: 198 GTGATCTTTTTATTTTTGATAAA
    TGTATATATTTTTATTTTTTAT
    ATACATATATCGATCAC
    SEQ ID NO: 199 GTGATCTTTTTATTTTTGATGAT
    GTATATATTTTTTATTTTTATA
    TATACATGATCGATCAC
    SEQ ID NO: 200 GTGATCTTTTTATTTTTGATGAT
    ATATGTACTTTTTATTTTTGTA
    CATATATGATCGATCAC
    SEQ ID NO: 201 GGATACTTTTTATTTTTGATAAA
    TATATATATTTTTATTTTTTAT
    ATATATATATCGTATCC
    SEQ ID NO: 202 GGATACTTTTTATTTTTGATAAA
    TGTATATATTTTTATTTTTTAT
    ATACATATATCGTATCC
    SEQ ID NO: 203 GGATACTTTTTATTTTTGATGAT
    GTATATATTTTTTATTTTTATA
    TATACATGATCGTATCC
    SEQ ID NO: 204 GGATACTTTTTATTTTTGATGAT
    ATATGTACTTTTTATTTTTGTA
    CATATATGATCGTATCC
    SEQ ID NO: 205 GCGATCTTTTTATTTTTGATAAA
    TATATATATTTTTATTTTTTAT
    ATATATATATCGATCGC
    SEQ ID NO: 206 GCGATCTTTTTATTTTTGATAAA
    TGTATATATTTTTATTTTTTAT
    ATACATATATCGATCGC
    SEQ ID NO: 207 GCGATCTTTTTATTTTTGATGAT
    GTATATATTTTTTATTTTTATA
    TATACATGATCGATCGC
    SEQ ID NO: 208 GCGATCTTTTTATTTTTGATGAT
    ATATGTACTTTTTATTTTTGTA
    CATATATGATCGATCGC
    SEQ ID NO: 209 GATATACTTTTTATTTTTTATAA
    ATATATATTTTTTATTTTTATA
    TATATATATAGTATATC
    SEQ ID NO: 210 GATATATTTTTTATTTTTGATAA
    ATGTATATTTTTTATTTTTATA
    TACATATATCATATATC
    SEQ ID NO: 211 GATATATTTTTTATTTTTGATGA
    TGTATATATTTTTATTTTTTAT
    ATACATGATCATATATC
    SEQ ID NO: 212 GATATATTTTTTATTTTTGATGA
    TATATGTATTTTTATTTTTTAC
    ATATATGATCATATATC
    SEQ ID NO: 213 GTGATACTTTTTATTTTTTATAA
    ATATATATTTTTTATTTTTATA
    TATATATATAGTATCAC
    SEQ ID NO: 214 GATATACTTTTTATTTTTGATAA
    ATATATATTTTTTATTTTTATA
    TATATATATCGTATATC
    SEQ ID NO: 215 GATATACTTTTTATTTTTGATGA
    TGTATATATTTTTATTTTTTAT
    ATACATGATCGTATATC
    SEQ ID NO: 216 GATATACTTTTTATTTTTGATGA
    TATATGTATTTTTATTTTTTAC
    ATATATGATCGTATATC
    SEQ ID NO: 217 GGTATACTTTTTATTTTTTATAA
    ATATATATTTTTTATTTTTATA
    TATATATATAGTATACC
    SEQ ID NO: 218 GTGATACTTTTTATTTTTGATAA
    ATATATATTTTTTATTTTTATA
    TATATATATCGTATCAC
    SEQ ID NO: 219 GTGATACTTTTTATTTTTGATAA
    ATGTATATTTTTTATTTTTATA
    TACATATATCGTATCAC
    SEQ ID NO: 220 GTGATACTTTTTATTTTTGATGA
    TGTATATATTTTTATTTTTTAT
    ATACATGATCGTATCAC
    SEQ ID NO: 221 GTGATACTTTTTATTTTTGATGA
    TATATGTATTTTTATTTTTTAC
    ATATATGATCGTATCAC
    SEQ ID NO: 222 GGTATACTTTTTATTTTTGATAA
    ATATATATTTTTTATTTTTATA
    TATATATATCGTATACC
    SEQ ID NO: 223 GGTATACTTTTTATTTTTGATAA
    ATGTATATTTTTTATTTTTATA
    TACATATATCGTATACC
    SEQ ID NO: 224 GGTATACTTTTTATTTTTGATGA
    TGTATATATTTTTATTTTTTAT
    ATACATGATCGTATACC
    SEQ ID NO: 225 GGTATACTTTTTATTTTTGATGA
    TATATGTATTTTTATTTTTTAC
    ATATATGATCGTATACC
    SEQ ID NO: 226 GGTGTACTTTTTATTTTTTATAA
    ATATATATTTTTTATTTTTATA
    TATATATATAGTACACC
    SEQ ID NO: 227 GGTGTACTTTTTATTTTTGATAA
    ATATATATTTTTTATTTTTATA
    TATATATATCGTACACC
    SEQ ID NO: 228 GGTGTACTTTTTATTTTTGATAA
    ATGTATATTTTTTATTTTTATA
    TACATATATCGTACACC
    SEQ ID NO: 229 GGTGTACTTTTTATTTTTGATGA
    TGTATATATTTTTATTTTTTAT
    ATACATGATCGTACACC
    SEQ ID NO: 230 GGTGTACTTTTTATTTTTGATGA
    TATATGTATTTTTATTTTTTAC
    ATATATGATCGTACACC
    SEQ ID NO: 231 GTATATACTTTTTATTTTTGATA
    AATATATATTTTTATTTTTTAT
    ATATATATCGTATATAC
    SEQ ID NO: 232 GTATATACTTTTTATTTTTGATA
    AATGTATATTTTTATTTTTTAT
    ACATATATCGTATATAC
    SEQ ID NO: 233 GTATATACTTTTTATTTTTGATG
    ATGTATATTTTTTATTTTTATA
    TACATGATCGTATATAC
    SEQ ID NO: 234 GTATATACTTTTTATTTTTGATG
    ATATATGTTTTTTATTTTTACA
    TATATGATCGTATATAC
    SEQ ID NO: 235 GGATATACTTTTTATTTTTGATA
    AATATATATTTTTATTTTTTAT
    ATATATATCGTATATCC
    SEQ ID NO: 236 GGATATACTTTTTATTTTTGATA
    AATGTATATTTTTATTTTTTAT
    ACATATATCGTATATCC
    SEQ ID NO: 237 GGATATACTTTTTATTTTTGATG
    ATGTATATTTTTTATTTTTATA
    TACATGATCGTATATCC
    SEQ ID NO: 238 GGATATACTTTTTATTTTTGATG
    ATATATGTTTTTTATTTTTACA
    TATATGATCGTATATCC
    SEQ ID NO: 239 GGTGATACTTTTTATTTTTGATA
    AATATATATTTTTATTTTTTAT
    ATATATATCGTATCACC
    SEQ ID NO: 240 GGTGATACTTTTTATTTTTGATA
    AATGTATATTTTTATTTTTTAT
    ACATATATCGTATCACC
    SEQ ID NO: 241 GGTGATACTTTTTATTTTTGATG
    ATGTATATTTTTTATTTTTATA
    TACATGATCGTATCACC
    SEQ ID NO: 242 GGTGATACTTTTTATTTTTGATG
    ATATATGTTTTTTATTTTTACA
    TATATGATCGTATCACC
    SEQ ID NO: 243 GGTGATCCTTTTTATTTTTGATA
    AATATATATTTTTATTTTTTAT
    ATATATATCGGATCACC
    SEQ ID NO: 244 GGTGATCCTTTTTATTTTTGATA
    AATGTATATTTTTATTTTTTAT
    ACATATATCGGATCACC
    SEQ ID NO: 245 GGTGATCCTTTTTATTTTTGATG
    ATGTATATTTTTTATTTTTATA
    TACATGATCGGATCACC
    SEQ ID NO: 246 GGTGATCCTTTTTATTTTTGATG
    ATATATGTTTTTTATTTTTACA
    TATATGATCGGATCACC
    SEQ ID NO: 247 GTATATACATTTTTTATTTTTGA
    TAAATATATTTTTATTTTTTAT
    ATATATCATGTATATAC
    SEQ ID NO: 248 GTATATACATTTTTTATTTTTGA
    TAAATGTATTTTTATTTTTTAC
    ATATATCATGTATATAC
    SEQ ID NO: 249 GTATATACATTTTTTATTTTTGA
    TGATGTATTTTTTATTTTTATA
    CATGATCATGTATATAC
    SEQ ID NO: 250 GTATATACATTTTTTATTTTTGA
    TGATATATTTTTTATTTTTATA
    TATGATCATGTATATAC
    SEQ ID NO: 251 GGATATACATTTTTTATTTTTGA
    TAAATATATTTTTATTTTTTAT
    ATATATCATGTATATCC
    SEQ ID NO: 252 GGATATACATTTTTTATTTTTGA
    TAAATGTATTTTTATTTTTTAC
    ATATATCATGTATATCC
    SEQ ID NO: 253 GGATATACATTTTTTATTTTTGA
    TGATGTATTTTTTATTTTTATA
    CATGATCATGTATATCC
    SEQ ID NO: 254 GGATATACATTTTTTATTTTTGA
    TGATATATTTTTTATTTTTATA
    TATGATCATGTATATCC
    SEQ ID NO: 255 GGATATACACTTTTTATTTTTGA
    TAAATATATTTTTATTTTTTAT
    ATATATCGTGTATATCC
    SEQ ID NO: 256 GGATATACACTTTTTATTTTTGA
    TAAATGTATTTTTATTTTTTAC
    ATATATCGTGTATATCC
    SEQ ID NO: 257 GGATATACACTTTTTATTTTTGA
    TGATGTATTTTTTATTTTTATA
    CATGATCGTGTATATCC
    SEQ ID NO: 258 GGATATACACTTTTTATTTTTGA
    TGATATATTTTTTATTTTTATA
    TATGATCGTGTATATCC
    SEQ ID NO: 259 GGGTATATACTTTTTATTTTTGA
    TAAATATATTTTTATTTTTTAT
    ATATATCGTATATACCC
    SEQ ID NO: 260 GGGTATATACTTTTTATTTTTGA
    TAAATGTATTTTTATTTTTTAC
    ATATATCGTATATACCC
    SEQ ID NO: 261 GGGTATATACTTTTTATTTTTGA
    TGATGTATTTTTTATTTTTATA
    CATGATCGTATATACCC
    SEQ ID NO: 262 GGGTATATACTTTTTATTTTTGA
    TGATATATTTTTTATTTTTATA
    TATGATCGTATATACCC
    SEQ ID NO: 263 GGATGTACACTTTTTATTTTTGA
    TAAATATATTTTTATTTTTTAT
    ATATATCGTGTACATCC
    SEQ ID NO: 264 GGATGTACACTTTTTATTTTTGA
    TAAATGTATTTTTATTTTTTAC
    ATATATCGTGTACATCC
    SEQ ID NO: 265 GGATGTACACTTTTTATTTTTGA
    TGATGTATTTTTTATTTTTATA
    CATGATCGTGTACATCC
    SEQ ID NO: 266 GGATGTACACTTTTTATTTTTGA
    TGATATATTTTTTATTTTTATA
    TATGATCGTGTACATCC
    SEQ ID NO: 267 GTATATACTTTTTATTTTTTATA
    AATATATATATTTTTTATTTTT
    ATATATATATATATAGTATATAC
    SEQ ID NO: 268 GTATATACTTTTTATTTTTGATA
    AATATATATATTTTTTATTTTT
    ATATATATATATATCGTATATAC
    SEQ ID NO: 269 GTATATACTTTTTATTTTTGATA
    AATGTATATATTTTTTATTTTT
    ATATATACATATATCGTATATAC
    SEQ ID NO: 270 GTATATACTTTTTATTTTTGATG
    ATGTATATATATTTTTATTTTT
    TATATATACATGATCGTATATAC
    SEQ ID NO: 271 GTATATACTTTTTATTTTTGATG
    ATATATGTACTTTTTTATTTTT
    AGTACATATATGATCGTATATAC
    SEQ ID NO: 272 GGATATACTTTTTATTTTTTATA
    AATATATATATTTTTTATTTTT
    ATATATATATATATAGTATATCC
    SEQ ID NO: 273 GGATATACTTTTTATTTTTGATA
    AATATATATATTTTTTATTTTT
    ATATATATATATATCGTATATCC
    SEQ ID NO: 274 GGATATACTTTTTATTTTTGATA
    AATGTATATATTTTTTATTTTT
    ATATATACATATATCGTATATCC
    SEQ ID NO: 275 GGATATACTTTTTATTTTTGATG
    ATGTATATATATTTTTATTTTT
    TATATATACATGATCGTATATCC
    SEQ ID NO: 276 GGATATACTTTTTATTTTTGATG
    ATATATGTACTTTTTTATTTTT
    AGTACATATATGATCGTATATCC
    SEQ ID NO: 277 GGTGATACTTTTTATTTTTTATA
    AATATATATATTTTTTATTTTT
    ATATATATATATATAGTATCACC
    SEQ ID NO: 278 GGTGATACTTTTTATTTTTGATA
    AATATATATATTTTTTATTTTT
    ATATATATATATATCGTATCACC
    SEQ ID NO: 279 GGTGATACTTTTTATTTTTGATA
    AATGTATATATTTTTTATTTTT
    ATATATACATATATCGTATCACC
    SEQ ID NO: 280 GGTGATACTTTTTATTTTTGATG
    ATGTATATATATTTTTATTTTT
    TATATATACATGATCGTATCACC
    SEQ ID NO: 281 GGTGATACTTTTTATTTTTGATG
    ATATATGTACTTTTTTATTTTT
    AGTACATATATGATCGTATCACC
    SEQ ID NO: 282 GGTGATCCTTTTTATTTTTTATA
    AATATATATATTTTTTATTTTT
    ATATATATATATATAGGATCACC
    SEQ ID NO: 283 GGTGATCCTTTTTATTTTTGATA
    AATATATATATTTTTTATTTTT
    ATATATATATATATCGGATCACC
    SEQ ID NO: 284 GGTGATCCTTTTTATTTTTGATA
    AATGTATATATTTTTTATTTTT
    ATATATACATATATCGGATCACC
    SEQ ID NO: 285 GGTGATCCTTTTTATTTTTGATG
    ATGTATATATATTTTTATTTTT
    TATATATACATGATCGGATCACC
    SEQ ID NO: 286 GGTGATCCTTTTTATTTTTGATG
    ATATATGTACTTTTTTATTTTT
    AGTACATATATGATCGGATCACC
    SEQ ID NO: 287 GATATATCACTTTTTATTTTTTA
    TAAATATATATATTTTTTATTT
    TTATATATATATATATAGTGATA
    TATC
    SEQ ID NO: 288 GTATATACATTTTTTATTTTTGA
    TAAATATATATATTTTTTATTT
    TTATATATATATATATCATGTAT
    ATAC
    SEQ ID NO: 289 GTATATACATTTTTTATTTTTGA
    TAAATGTATATATTTTTTATTT
    TTATATATACATATATCATGTAT
    ATAC
    SEQ ID NO: 290 GTATATACATTTTTTATTTTTGA
    TGATGTATATATATTTTTATTT
    TTTATATATACATGATCATGTAT
    ATAC
    SEQ ID NO: 291 GTATATACATTTTTTATTTTTGA
    TGATATATGTACTTTTTTATTT
    TTAGTACATATATGATCATGTAT
    ATAC
    SEQ ID NO: 292 GGATATACACTTTTTATTTTTTA
    TAAATATATATATTTTTTATTT
    TTATATATATATATATAGTGTAT
    ATCC
    SEQ ID NO: 293 GGATATACATTTTTTATTTTTGA
    TAAATATATATATTTTTTATTT
    TTATATATATATATATCATGTAT
    ATCC
    SEQ ID NO: 294 GGATATACATTTTTTATTTTTGA
    TAAATGTATATATTTTTTATTT
    TTATATATACATATATCATGTAT
    ATCC
    SEQ ID NO: 295 GGATATACATTTTTTATTTTTGA
    TGATGTATATATATTTTTATTT
    TTTATATATACATGATCATGTAT
    ATCC
    SEQ ID NO: 296 GGATATACATTTTTTATTTTTGA
    TGATATATGTACTTTTTTATTT
    TTAGTACATATATGATCATGTAT
    ATCC
    SEQ ID NO: 297 GGGTATATACTTTTTATTTTTTA
    TAAATATATATATTTTTTATTT
    TTATATATATATATATAGTATAT
    ACCC
    SEQ ID NO: 298 GGATATACACTTTTTATTTTTGA
    TAAATATATATATTTTTTATT
    TTTATATATATATATATCGTGTA
    TATCC
    SEQ ID NO: 299 GGATATACACTTTTTATTTTTGA
    TAAATGTATATATTTTTTATT
    TTTATATATACATATATCGTGTA
    TATCC
    SEQ ID NO: 300 GGATATACACTTTTTATTTTTGA
    TGATGTATATATATTTTTATT
    TTTTATATATACATGATCGTGTA
    TATCC
    SEQ ID NO: 301 GGATATACACTTTTTATTTTTGA
    TGATATATGTACTTTTTTATTT
    TTAGTACATATATGATCGTGTAT
    ATCC
    SEQ ID NO: 302 GGGTATATACTTTTTATTTTTGA
    TAAATATATATATTTTTTATTT
    TTATATATATATATATCGTATAT
    ACCC
    SEQ ID NO: 303 GGGTATATACTTTTTATTTTTGA
    TAAATGTATATATTTTTTATTT
    TTATATATACATATATCGTATAT
    ACCC
    SEQ ID NO: 304 GGGTATATACTTTTTATTTTTGA
    TGATGTATATATATTTTTATTT
    TTTATATATACATGATCGTATAT
    ACCC
    SEQ ID NO: 305 GGGTATATACTTTTTATTTTTGA
    TGATATATGTACTTTTTTATTT
    TTAGTACATATATGATCGTATAT
    ACCC
    SEQ ID NO: 306 GTATATACTTTTTATTTTTGATA
    AATATATATATTTTTATTTTTT
    ATATATATATATCGTATATAC
    SEQ ID NO: 307 GTATATACTTTTTATTTTTGATA
    AATGTATATATTTTTATTTTTT
    ATATACATATATCGTATATAC
    SEQ ID NO: 308 GTATATACTTTTTATTTTTGATG
    ATGTATATATTTTTTATTTTTA
    TATATACATGATCGTATATAC
    SEQ ID NO: 309 GTATATACTTTTTATTTTTGATG
    ATATATGTACTTTTTATTTTTG
    TACATATATGATCGTATATAC
    SEQ ID NO: 310 GGATATACTTTTTATTTTTGATA
    AATATATATATTTTTATTTTTT
    ATATATATATATCGTATATCC
    SEQ ID NO: 311 GGATATACTTTTTATTTTTGATA
    AATGTATATATTTTTATTTTTT
    ATATACATATATCGTATATCC
    SEQ ID NO: 312 GGATATACTTTTTATTTTTGATG
    ATGTATATATTTTTTATTTTTA
    TATATACATGATCGTATATCC
    SEQ ID NO: 313 GGATATACTTTTTATTTTTGATG
    ATATATGTACTTTTTATTTTTG
    TACATATATGATCGTATATCC
    SEQ ID NO: 314 GGTGATACTTTTTATTTTTGATA
    AATATATATATTTTTATTTTTT
    ATATATATATATCGTATCACC
    SEQ ID NO: 315 GGTGATACTTTTTATTTTTGATA
    AATGTATATATTTTTATTTTTT
    ATATACATATATCGTATCACC
    SEQ ID NO: 316 GGTGATACTTTTTATTTTTGATG
    ATGTATATATTTTTTATTTTTA
    TATATACATGATCGTATCACC
    SEQ ID NO: 317 GGTGATACTTTTTATTTTTGATG
    ATATATGTACTTTTTATTTTTG
    TACATATATGATCGTATCACC
    SEQ ID NO: 318 GGTGATCCTTTTTATTTTTGATA
    AATATATATATTTTTATTTTTT
    ATATATATATATCGGATCACC
    SEQ ID NO: 319 GGTGATCCTTTTTATTTTTGATA
    AATGTATATATTTTTATTTTTT
    ATATACATATATCGGATCACC
    SEQ ID NO: 320 GGTGATCCTTTTTATTTTTGATG
    ATGTATATATTTTTTATTTTTA
    TATATACATGATCGGATCACC
    SEQ ID NO: 321 GGTGATCCTTTTTATTTTTGATG
    ATATATGTACTTTTTATTTTTG
    TACATATATGATCGGATCACC
    SEQ ID NO: 322 GTATATACATTTTTTATTTTTGA
    TAAATATATATATTTTTATTTT
    TTATATATATATATCATGTATAT
    AC
    SEQ ID NO: 323 GTATATACATTTTTTATTTTTGA
    TGATGTATATATTTTTTATTTT
    TATATATACATGATCATGTATAT
    AC
    SEQ ID NO: 324 GTATATACATTTTTTATTTTTGA
    TGATATATGTACTTTTTATTTT
    TGTACATATATGATCATGTATAT
    AC
    SEQ ID NO: 325 GGATATACATTTTTTATTTTTGA
    TAAATATATATATTTTTATTTT
    TTATATATATATATCATGTATAT
    CC
    SEQ ID NO: 326 GGATATACATTTTTTATTTTTGA
    TAAATGTATATATTTTTATTTT
    TTATATACATATATCATGTATAT
    CC
    SEQ ID NO: 327 GGATATACATTTTTTATTTTTGA
    TGATGTATATATTTTTTATTTT
    TATATATACATGATCATGTATAT
    CC
    SEQ ID NO: 328 GGATATACATTTTTTATTTTTGA
    TGATATATGTACTTTTTATTTT
    TGTACATATATGATCATGTATAT
    CC
    SEQ ID NO: 329 GGATATACACTTTTTATTTTTGA
    TAAATATATATATTTTTATTT
    TTTATATATATATATCGTGTATA
    TCC
    SEQ ID NO: 330 GGATATACACTTTTTATTTTTGA
    TAAATGTATATATTTTTATTT
    TTTATATACATATATCGTGTATA
    TCC
    SEQ ID NO: 331 GGATATACACTTTTTATTTTTGA
    TGATGTATATATTTTTTATTTT
    TATATATACATGATCGTGTATAT
    CC
    SEQ ID NO: 332 GGATATACACTTTTTATTTTTGA
    TGATATATGTACTTTTTATTTT
    TGTACATATATGATCGTGTATAT
    CC
    SEQ ID NO: 333 GGGTATATACTTTTTATTTTTGA
    TAAATATATATATTTTTATTTT
    TTATATATATATATCGTATATAC
    CC
    SEQ ID NO: 334 GGGTATATACTTTTTATTTTTGA
    TAAATGTATATATTTTTATTTT
    TTATATACATATATCGTATATAC
    CC
    SEQ ID NO: 335 GGGTATATACTTTTTATTTTTGA
    TGATGTATATATTTTTTATTTT
    TATATATACATGATCGTATATAC
    CC
    SEQ ID NO: 336 GGGTATATACTTTTTATTTTTGA
    TGATATATGTACTTTTTATTTT
    TGTACATATATGATCGTATATAC
    CC
    SEQ ID NO: 337 GATATATCACTTTTTATTTTTTA
    TAAATATATATTTTTTATTTTT
    ATATATATATATAGTGATATATC
    SEQ ID NO: 338 GTATATACATTTTTTATTTTTGA
    TAAATATATATTTTTTATTTTT
    ATATATATATATCATGTATATAC
    SEQ ID NO: 339 GTATATACATTTTTTATTTTTGA
    TGATGTATATATTTTTATTTTT
    TATATACATGATCATGTATATAC
    SEQ ID NO: 340 GTATATACATTTTTTATTTTTGA
    TGATATATGTATTTTTATTTTT
    TACATATATGATCATGTATATAC
    SEQ ID NO: 341 GGATATACACTTTTTATTTTTTA
    TAAATATATATTTTTTATTTTT
    ATATATATATATAGTGTATATCC
    SEQ ID NO: 342 GGATATACATTTTTTATTTTTGA
    TAAATATATATTTTTTATTTTT
    ATATATATATATCATGTATATCC
    SEQ ID NO: 343 GGATATACATTTTTTATTTTTGA
    TAAATGTATATTTTTTATTTTT
    ATATACATATATCATGTATATCC
    SEQ ID NO: 344 GGATATACATTTTTTATTTTTGA
    TGATGTATATATTTTTATTTTT
    TATATACATGATCATGTATATCC
    SEQ ID NO: 345 GGATATACATTTTTTATTTTTGA
    TGATATATGTATTTTTATTTTT
    TACATATATGATCATGTATATCC
    SEQ ID NO: 346 GGGTATATACTTTTTATTTTTTA
    TAAATATATATTTTTTATTTTT
    ATATATATATATAGTATATACCC
    SEQ ID NO: 347 GGATATACACTTTTTATTTTTGA
    TAAATATATATTTTTTATTTTT
    ATATATATATATCGTGTATATCC
    SEQ ID NO: 348 GGATATACACTTTTTATTTTTGA
    TAAATGTATATTTTTTATTTTT
    ATATACATATATCGTGTATATCC
    SEQ ID NO: 349 GGATATACACTTTTTATTTTTGA
    TGATGTATATATTTTTATTTTT
    TATATACATGATCGTGTATATCC
    SEQ ID NO: 350 GGATATACACTTTTTATTTTTGA
    TGATATATGTATTTTTATTTTT
    TACATATATGATCGTGTATATCC
    SEQ ID NO: 351 GGGTATATACTTTTTATTTTTGA
    TAAATATATATTTTTTATTTTT
    ATATATATATATCGTATATACCC
    SEQ ID NO: 352 GGGTATATACTTTTTATTTTTGA
    TAAATGTATATTTTTTATTTTT
    ATATACATATATCGTATATACCC
    SEQ ID NO: 353 GGGTATATACTTTTTATTTTTGA
    TGATGTATATATTTTTATTTTT
    TATATACATGATCGTATATACCC
    SEQ ID NO: 354 GGGTATATACTTTTTATTTTTGA
    TGATATATGTATTTTTATTTTT
    TACATATATGATCGTATATACCC
    SEQ ID NO: 355 GTATATACATTTTTTATTTTTGA
    TAAATATATATTTTTATTTTTT
    ATATATATATCATGTATATAC
    SEQ ID NO: 356 GTATATACATTTTTTATTTTTGA
    TGATGTATATTTTTTATTTTTA
    TATACATGATCATGTATATAC
    SEQ ID NO: 357 GTATATACATTTTTTATTTTTGA
    TGATATATGTTTTTTATTTTTA
    CATATATGATCATGTATATAC
    SEQ ID NO: 358 GGATATACATTTTTTATTTTTGA
    TAAATATATATTTTTATTTTTT
    ATATATATATCATGTATATCC
    SEQ ID NO: 359 GGATATACATTTTTTATTTTTGA
    TAAATGTATATTTTTATTTTTT
    ATACATATATCATGTATATCC
    SEQ ID NO: 360 GGATATACATTTTTTATTTTTGA
    TGATGTATATTTTTTATTTTTA
    TATACATGATCATGTATATCC
    SEQ ID NO: 361 GGATATACATTTTTTATTTTTGA
    TGATATATGTTTTTTATTTTTA
    CATATATGATCATGTATATCC
    SEQ ID NO: 362 GGATATACACTTTTTATTTTTGA
    TAAATATATATTTTTATTTTTT
    ATATATATATCGTGTATATCC
    SEQ ID NO: 363 GGATATACACTTTTTATTTTTGA
    TAAATGTATATTTTTATTTTTT
    ATACATATATCGTGTATATCC
    SEQ ID NO: 364 GGATATACACTTTTTATTTTTGA
    TGATGTATATTTTTTATTTTTA
    TATACATGATCGTGTATATCC
    SEQ ID NO: 365 GGATATACACTTTTTATTTTTGA
    TGATATATGTTTTTTATTTTTA
    CATATATGATCGTGTATATCC
    SEQ ID NO: 366 GGGTATATACTTTTTATTTTTGA
    TAAATATATATTTTTATTTTTT
    ATATATATATCGTATATACCC
    SEQ ID NO: 367 GGGTATATACTTTTTATTTTTGA
    TAAATGTATATTTTTATTTTTT
    ATACATATATCGTATATACCC
    SEQ ID NO: 368 GGGTATATACTTTTTATTTTTGA
    TGATGTATATTTTTTATTTTTA
    TATACATGATCGTATATACCC
    SEQ ID NO: 369 GGGTATATACTTTTTATTTTTGA
    TGATATATGTTTTTTATTTTTA
    CATATATGATCGTATATACCC
    SEQ ID NO: 370 GTACATATATTTTTTTATTTTTG
    ATAAATATATTTTTATTTTTTA
    TATATATCAATATATGTAC
    SEQ ID NO: 371 GTACATATATTTTTTTATTTTTG
    ATAAATGTATTTTTATTTTTTA
    CATATATCAATATATGTAC
    SEQ ID NO: 372 GTACATATATTTTTTTATTTTTG
    ATGATGTATTTTTTATTTTTAT
    ACATGATCAATATATGTAC
    SEQ ID NO: 373 GTACATATATTTTTTTATTTTTG
    ATGATATATTTTTTATTTTTAT
    ATATGATCAATATATGTAC
    SEQ ID NO: 374 GGTACATATATTTTTTATTTTTG
    ATAAATATATTTTTATTTTTTA
    TATATATCATATATGTACC
    SEQ ID NO: 375 GGTACATATATTTTTTATTTTTG
    ATAAATGTATTTTTATTTTTTA
    CATATATCATATATGTACC
    SEQ ID NO: 376 GGTACATATATTTTTTATTTTTG
    ATGATGTATTTTTTATTTTTAT
    ACATGATCATATATGTACC
    SEQ ID NO: 377 GGTACATATATTTTTTATTTTTG
    ATGATATATTTTTTATTTTTAT
    ATATGATCATATATGTACC
    SEQ ID NO: 378 CGATCATATATTTTTTTATTTTT
    GATAAATATATTTTTATTTTTT
    ATATATATCAATATATGATCG
    SEQ ID NO: 379 CGATCATATATTTTTTTATTTTT
    GATAAATGTATTTTTATTTTTT
    ACATATATCAATATATGATCG
    SEQ ID NO: 380 CGATCATATATTTTTTTATTTTT
    GATGATGTATTTTTTATTTTTA
    TACATGATCAATATATGATCG
    SEQ ID NO: 381 CGATCATATATTTTTTTATTTTT
    GATGATATATTTTTTATTTTTA
    TATATGATCAATATATGATCG
    SEQ ID NO: 382 GTATATACTTTTTATTTTTGATG
    ATGTAAATATATTTTTATTTTT
    TATATATACATGATCGTATATAC
    SEQ ID NO: 383 GTATATACTTTTTATTTTTGATG
    ATATAAGTACTTTTTTATTTTT
    AGTACATATATGATCGTATATAC
    SEQ ID NO: 384 GGATATACTTTTTATTTTTGATG
    ATGTAAATATATTTTTATTTTT
    TATATATACATGATCGTATATCC
    SEQ ID NO: 385 GGATATACTTTTTATTTTTGATG
    ATATAAGTACTTTTTTATTTTT
    AGTACATATATGATCGTATATCC
    SEQ ID NO: 386 GGTGATACTTTTTATTTTTGATG
    ATGTAAATATATTTTTATTTTT
    TATATATACATGATCGTATCACC
    SEQ ID NO: 387 GGTGATACTTTTTATTTTTGATG
    ATATAAGTACTTTTTTATTTTT
    AGTACATATATGATCGTATCACC
    SEQ ID NO: 388 GGTGATCCTTTTTATTTTTGATG
    ATGTAAATATATTTTTATTTTT
    TATATATACATGATCGGATCACC
    SEQ ID NO: 389 GGTGATCCTTTTTATTTTTGATG
    ATATAAGTACTTTTTTATTTTT
    AGTACATATATGATCGGATCACC
    SEQ ID NO: 390 GTATATACATTTTTTATTTTTGA
    TGATGTAAATATATTTTTATTT
    TTTATATATACATGATCATGTAT
    ATAC
    SEQ ID NO: 391 GTATATACATTTTTTATTTTTGA
    TGATATAAGTACTTTTTTATTT
    TTAGTACATATATGATCATGTAT
    ATAC
    SEQ ID NO: 392 GGATATACATTTTTTATTTTTGA
    TAAATGTAAATATTTTTTATT
    TTTATATATACATATATCATGTA
    TATCC
    SEQ ID NO: 393 GGATATACATTTTTTATTTTTGA
    TGATGTAAATATATTTTTATT
    TTTTATATATACATGATCATGTA
    TATCC
    SEQ ID NO: 394 GGATATACATTTTTTATTTTTGA
    TGATATAAGTACTTTTTTATT
    TTTAGTACATATATGATCATGTA
    TATCC
    SEQ ID NO: 395 GGATATACACTTTTTATTTTTGA
    TGATGTAAATATATTTTTATT
    TTTTATATATACATGATCGTGTA
    TATCC
    SEQ ID NO: 396 GGATATACACTTTTTATTTTTGA
    TGATATAAGTACTTTTTTATT
    TTTAGTACATATATGATCGTGTA
    TATCC
    SEQ ID NO: 397 GGGTATATACTTTTTATTTTTGA
    TGATGTAAATATATTTTTATT
    TTTTATATATACATGATCGTATA
    TACCC
    SEQ ID NO: 398 GGGTATATACTTTTTATTTTTGA
    TGATATAAGTACTTTTTTATT
    TTTAGTACATATATGATCGTATA
    TACCC
    SEQ ID NO: 399 GTATATACTTTTTATTTTTGATG
    ATGTAAATATTTTTTATTTTTA
    TATATACATGATCGTATATAC
    SEQ ID NO: 400 GTATATACTTTTTATTTTTGATG
    ATATAAGTACTTTTTATTTTTG
    TACATATATGATCGTATATAC
    SEQ ID NO: 401 GGATATACTTTTTATTTTTGATG
    ATGTAAATATTTTTTATTTTTA
    TATATACATGATCGTATATCC
    SEQ ID NO: 402 GGATATACTTTTTATTTTTGATG
    ATATAAGTACTTTTTATTTTT
    GTACATATATGATCGTATATCC
    SEQ ID NO: 403 GGTGATACTTTTTATTTTTGATG
    ATGTAAATATTTTTTATTTTTA
    TATATACATGATCGTATCACC
    SEQ ID NO: 404 GGTGATACTTTTTATTTTTGATG
    ATATAAGTACTTTTTATTTTT
    GTACATATATGATCGTATCACC
    SEQ ID NO: 405 GGTGATCCTTTTTATTTTTGATG
    ATGTAAATATTTTTTATTTTTA
    TATATACATGATCGGATCACC
    SEQ ID NO: 406 GGTGATCCTTTTTATTTTTGATG
    ATATAAGTACTTTTTATTTTTG
    TACATATATGATCGGATCACC
    SEQ ID NO: 407 GTATATACATTTTTTATTTTTGA
    TGATGTAAATATTTTTTATTTT
    TATATATACATGATCATGTATAT
    AC
    SEQ ID NO: 408 GTATATACATTTTTTATTTTTGA
    TGATATAAGTACTTTTTATTTT
    TGTACATATATGATCATGTATAT
    AC
    SEQ ID NO: 409 GGATATACATTTTTTATTTTTGA
    TGATGTAAATATTTTTTATTTT
    TATATATACATGATCATGTATAT
    CC
    SEQ ID NO: 410 GGATATACATTTTTTATTTTTGA
    TGATATAAGTACTTTTTATTT
    TTGTACATATATGATCATGTATA
    TCC
    SEQ ID NO: 411 GGATATACACTTTTTATTTTTGA
    TGATGTAAATATTTTTTATTT
    TTATATATACATGATCGTGTATA
    TCC
    SEQ ID NO: 412 GGATATACACTTTTTATTTTTGA
    TGATATAAGTACTTTTTATTT
    TTGTACATATATGATCGTGTATA
    TCC
    SEQ ID NO: 413 GGGTATATACTTTTTATTTTTGA
    TGATGTAAATATTTTTTATTTT
    TATATATACATGATCGTATATAC
    CC
    SEQ ID NO: 414 GGGTATATACTTTTTATTTTTGA
    TGATATAAGTACTTTTTATTT
    TTGTACATATATGATCGTATATA
    CCC
    SEQ ID NO: 415 GTATATACATTTTTTATTTTTGA
    TGATATAAGTATTTTTATTTTT
    TACATATATGATCATGTATATAC
    SEQ ID NO: 416 GGATATACATTTTTTATTTTTGA
    TAAATGAATATTTTTTATTTTT
    ATATACATATATCATGTATATCC
    SEQ ID NO: 417 GGATATACATTTTTTATTTTTGA
    TGATATAAGTATTTTTATTTTT
    TACATATATGATCATGTATATCC
    SEQ ID NO: 418 GGATATACACTTTTTATTTTTGA
    TAAATGAATATTTTTTATTTT
    TATATACATATATCGTGTATATC
    C
    SEQ ID NO: 419 GGATATACACTTTTTATTTTTGA
    TGATATAAGTATTTTTATTTT
    TTACATATATGATCGTGTATATC
    C
    SEQ ID NO: 420 GGGTATATACTTTTTATTTTTGA
    TAAATGAATATTTTTTATTTTT
    ATATACATATATCGTATATACCC
    SEQ ID NO: 421 GGGTATATACTTTTTATTTTTGA
    TGATATAAGTATTTTTATTTTT
    TACATATATGATCGTATATACCC
    SEQ ID NO: 422 GTATATACATTTTTTATTTTTGA
    TGATGAATATTTTTTATTTTTA
    TATACATGATCATGTATATAC
    SEQ ID NO: 423 GGATATACATTTTTTATTTTTGA
    TAAATGAATATTTTTATTTTTT
    ATACATATATCATGTATATCC
    SEQ ID NO: 424 GGATATACATTTTTTATTTTTGA
    TGATGAATATTTTTTATTTTTA
    TATACATGATCATGTATATCC
    SEQ ID NO: 425 GGATATACATTTTTTATTTTTGA
    TGATAAATGTTTTTTATTTTTA
    CATATATGATCATGTATATCC
    SEQ ID NO: 426 GGATATACACTTTTTATTTTTGA
    TGATGAATATTTTTTATTTTT
    ATATACATGATCGTGTATATCC
    SEQ ID NO: 427 GGGTATATACTTTTTATTTTTGA
    TGATGAATATTTTTTATTTTTA
    TATACATGATCGTATATACCC
    SEQ ID NO: 428 GATACTTTTTATTTTTGATGATG
    TAAATATATTTTTATTTTTTAT
    ATATACATGATCGTATC
    SEQ ID NO: 429 GATACTTTTTATTTTTGATGATA
    TAAGTACTTTTTTATTTTTAGT
    ACATATATGATCGTATC
    SEQ ID NO: 430 GACACTTTTTATTTTTGATGATG
    TAAATATATTTTTATTTTTTAT
    ATATACATGATCGTGTC
    SEQ ID NO: 431 GACACTTTTTATTTTTGATGATA
    TAAGTACTTTTTTATTTTTAGT
    ACATATATGATCGTGTC
    SEQ ID NO: 432 GGATCTTTTTATTTTTGATGATG
    TAAATATATTTTTATTTTTTAT
    ATATACATGATCGATCC
    SEQ ID NO: 433 GGATCTTTTTATTTTTGATGATA
    TAAGTACTTTTTTATTTTTAGT
    ACATATATGATCGATCC
    SEQ ID NO: 434 GCGTCTTTTTATTTTTGATGATG
    TAAATATATTTTTATTTTTTAT
    ATATACATGATCGACGC
    SEQ ID NO: 435 GCGTCTTTTTATTTTTGATGATA
    TAAGTACTTTTTTATTTTTAGT
    ACATATATGATCGACGC
    SEQ ID NO: 436 GTATACTTTTTATTTTTGATGAT
    GTAAATATTTTTTATTTTTATA
    TATACATGATCGTATAC
    SEQ ID NO: 437 GTATACTTTTTATTTTTGATGAT
    ATAAGTACTTTTTATTTTTGTA
    CATATATGATCGTATAC
    SEQ ID NO: 438 GTGATCTTTTTATTTTTGATGAT
    GTAAATATTTTTTATTTTTATA
    TATACATGATCGATCAC
    SEQ ID NO: 439 GTGATCTTTTTATTTTTGATGAT
    ATAAGTACTTTTTATTTTTGTA
    CATATATGATCGATCAC
    SEQ ID NO: 440 GGATACTTTTTATTTTTGATGAT
    GTAAATATTTTTTATTTTTATA
    TATACATGATCGTATCC
    SEQ ID NO: 441 GGATACTTTTTATTTTTGATGAT
    ATAAGTACTTTTTATTTTTGT
    ACATATATGATCGTATCC
    SEQ ID NO: 442 GCGATCTTTTTATTTTTGATGAT
    GTAAATATTTTTTATTTTTATA
    TATACATGATCGATCGC
    SEQ ID NO: 443 GCGATCTTTTTATTTTTGATGAT
    ATAAGTACTTTTTATTTTTGTA
    CATATATGATCGATCGC
    SEQ ID NO: 444 GATATATTTTTTATTTTTGATGA
    TATAAGTATTTTTATTTTTTAC
    ATATATGATCATATATC
    SEQ ID NO: 445 GATATACTTTTTATTTTTGATGA
    TATAAGTATTTTTATTTTTTAC
    ATATATGATCGTATATC
    SEQ ID NO: 446 GTGATACTTTTTATTTTTGATAA
    ATGAATATTTTTTATTTTTATA
    TACATATATCGTATCAC
    SEQ ID NO: 447 GTGATACTTTTTATTTTTGATGA
    TATAAGTATTTTTATTTTTTAC
    ATATATGATCGTATCAC
    SEQ ID NO: 448 GGTATACTTTTTATTTTTGATAA
    ATGAATATTTTTTATTTTTATA
    TACATATATCGTATACC
    SEQ ID NO: 449 GGTATACTTTTTATTTTTGATGA
    TATAAGTATTTTTATTTTTTAC
    ATATATGATCGTATACC
    SEQ ID NO: 450 GGTGTACTTTTTATTTTTGATAA
    ATGAATATTTTTTATTTTTATA
    TACATATATCGTACACC
    SEQ ID NO:451 GGTGTACTTTTTATTTTTGATGA
    TATAAGTATTTTTATTTTTTAC
    ATATATGATCGTACACC
    SEQ ID NO: 452 GTATATACTTTTTATTTTTGATG
    ATGAATATTTTTTATTTTTATA
    TACATGATCGTATATAC
    SEQ ID NO: 453 GTATATACTTTTTATTTTTGATG
    ATAAATGTTTTTTATTTTTACA
    TATATGATCGTATATAC
    SEQ ID NO: 454 GGATATACTTTTTATTTTTGATG
    ATGAATATTTTTTATTTTTATA
    TACATGATCGTATATCC
    SEQ ID NO: 455 GGTGATACTTTTTATTTTTGATG
    ATGAATATTTTTTATTTTTATA
    TACATGATCGTATCACC
    SEQ ID NO: 456 GGTGATACTTTTTATTTTTGATG
    ATAAATGTTTTTTATTTTTAC
    ATATATGATCGTATCACC
    SEQ ID NO: 457 GGTGATCCTTTTTATTTTTGATG
    ATGAATATTTTTTATTTTTATA
    TACATGATCGGATCACC
    SEQ ID NO: 458 GATACTTTTTATTTTTGATATAA
    ATATATAATTTTTATTTTTATA
    TATATATATATCGTATC
    SEQ ID NO: 459 GATACTTTTTATTTTTGATAAAT
    GAATATATTTTTTATTTTTATA
    TATACATATATCGTATC
    SEQ ID NO: 460 GACACTTTTTATTTTTGATATAA
    ATATATAATTTTTATTTTTAT
    ATATATATATATCGTGTC
    SEQ ID NO: 461 GACACTTTTTATTTTTGATAAAT
    GAATATATTTTTTATTTTTAT
    ATATACATATATCGTGTC
    SEQ ID NO: 462 GACACTTTTTATTTTTGATATAA
    GTAAATATTTTTTATTTTTAT
    ATATACATATATCGTGTC
    SEQ ID NO: 463 GGATCTTTTTATTTTTGATATAA
    ATATATAATTTTTATTTTTATA
    TATATATATATCGATCC
    SEQ ID NO: 464 GGATCTTTTTATTTTTGATAAAT
    GAATATATTTTTTATTTTTATA
    TATACATATATCGATCC
    SEQ ID NO: 465 GGATCTTTTTATTTTTGATATAA
    GTAAATATTTTTTATTTTTATA
    TATACATATATCGATCC
    SEQ ID NO: 466 GCGTCTTTTTATTTTTGATATAA
    ATATATAATTTTTATTTTTATA
    TATATATATATCGACGC
    SEQ ID NO: 467 GCGTCTTTTTATTTTTGATAAAT
    GAATATATTTTTTATTTTTATA
    TATACATATATCGACGC
    SEQ ID NO: 468 GCGTCTTTTTATTTTTGATATAA
    GTAAATATTTTTTATTTTTATA
    TATACATATATCGACGC
    SEQ ID NO: 469 GTATATACATTTTTTATTTTTGA
    TATAAATATATAATTTTTATTT
    TTATATATATATATATCATGTAT
    ATAC
    SEQ ID NO: 470 GTATATACATTTTTTATTTTTGA
    TAAATGAATATATTTTTTATTT
    TTATATATACATATATCATGTAT
    ATAC
    SEQ ID NO: 471 GTATATACATTTTTTATTTTTGA
    TATAAGTAAATATTTTTTATTT
    TTATATATACATATATCATGTAT
    ATAC
    SEQ ID NO: 472 GGATATACATTTTTTATTTTTGA
    TATAAATATATAATTTTTATT
    TTTATATATATATATATCATGTA
    TATCC
    SEQ ID NO: 473 GGATATACACTTTTTATTTTTGA
    TATAAATATATAATTTTTATT
    TTTATATATATATATATCGTGTA
    TATCC
    SEQ ID NO: 474 GGATATACACTTTTTATTTTTGA
    TAAATGAATATATTTTTTATT
    TTTATATATACATATATCGTGTA
    TATCC
    SEQ ID NO: 475 GGATATACACTTTTTATTTTTGA
    TATAAGTAAATATTTTTTATT
    TTTATATATACATATATCGTGTA
    TATCC
    SEQ ID NO: 476 GGGTATATACTTTTTATTTTTGA
    TATAAATATATAATTTTTATT
    TTTATATATATATATATCGTATA
    TACCC
    SEQ ID NO: 477 GGGTATATACTTTTTATTTTTGA
    TAAATGAATATATTTTTTATT
    TTTATATATACATATATCGTATA
    TACCC
    SEQ ID NO: 478 GGGTATATACTTTTTATTTTTGA
    TATAAGTAAATATTTTTTATT
    TTTATATATACATATATCGTATA
    TACCC
    SEQ ID NO: 479 GTATACTTTTTATTTTTTATAAA
    TATATATTTTTTTATTTTTTAT
    ATATATATATAGTATAC
    SEQ ID NO: 480 GTGATCTTTTTATTTTTTATAAA
    TATATATTTTTTTATTTTTTAT
    ATATATATATAGATCAC
    SEQ ID NO: 481 GTATACTTTTTATTTTTGATATA
    AATATATTTTTTTATTTTTTAT
    ATATATATATCGTATAC
    SEQ ID NO: 482 GTATACTTTTTATTTTTGATATA
    TAAATATTTTTTTATTTTTTAT
    ATATATATATCGTATAC
    SEQ ID NO: 483 GTATACTTTTTATTTTTGATAAA
    TGAATATATTTTTATTTTTTAT
    ATACATATATCGTATAC
    SEQ ID NO: 484 GGATACTTTTTATTTTTTATAAA
    TATATATTTTTTTATTTTTTAT
    ATATATATATAGTATCC
    SEQ ID NO: 485 GTGATCTTTTTATTTTTGATATA
    AATATATTTTTTTATTTTTTAT
    ATATATATATCGATCAC
    SEQ ID NO: 486 GTGATCTTTTTATTTTTGATATA
    TAAATATTTTTTTATTTTTTAT
    ATATATATATCGATCAC
    SEQ ID NO: 487 GTGATCTTTTTATTTTTGATAAA
    TGAATATATTTTTATTTTTTAT
    ATACATATATCGATCAC
    SEQ ID NO: 488 GGATACTTTTTATTTTTGATATA
    AATATATTTTTTTATTTTTTAT
    ATATATATATCGTATCC
    SEQ ID NO: 489 GGATACTTTTTATTTTTGATATA
    TAAATATTTTTTTATTTTTTAT
    ATATATATATCGTATCC
    SEQ ID NO: 490 GGATACTTTTTATTTTTGATAAA
    TGAATATATTTTTATTTTTTAT
    ATACATATATCGTATCC
    SEQ ID NO: 491 GCGATCTTTTTATTTTTTATAAA
    TATATATTTTTTTATTTTTTAT
    ATATATATATAGATCGC
    SEQ ID NO: 492 GCGATCTTTTTATTTTTGATATA
    AATATATTTTTTTATTTTTTAT
    ATATATATATCGATCGC
    SEQ ID NO: 493 GCGATCTTTTTATTTTTGATATA
    TAAATATTTTTTTATTTTTTAT
    ATATATATATCGATCGC
    SEQ ID NO: 494 GCGATCTTTTTATTTTTGATAAA
    TGAATATATTTTTATTTTTTAT
    ATACATATATCGATCGC
    SEQ ID NO: 495 GATATATCACTTTTTATTTTTTA
    TAAATATATATTTTTTTATTTT
    TTATATATATATATAGTGATATA
    TC
    SEQ ID NO: 496 GTATATACATTTTTTATTTTTGA
    TATAAATATATTTTTTTATTTT
    TTATATATATATATCATGTATAT
    AC
    SEQ ID NO: 497 GTATATACATTTTTTATTTTTGA
    TATATAAATATTTTTTTATTTT
    TTATATATATATATCATGTATAT
    AC
    SEQ ID NO: 498 GGATATACACTTTTTATTTTTTA
    TAAATATATATTTTTTTATTTT
    TTATATATATATATAGTGTATAT
    CC
    SEQ ID NO: 499 GGATATACATTTTTTATTTTTGA
    TATAAATATATTTTTTTATTTT
    TTATATATATATATCATGTATAT
    CC
    SEQ ID NO: 500 GGATATACATTTTTTATTTTTGA
    TATATAAATATTTTTTTATTTT
    TTATATATATATATCATGTATAT
    CC
    SEQ ID NO: 501 GGATATACATTTTTTATTTTTGA
    TAAATGAATATATTTTTATTT
    TTTATATACATATATCATGTATA
    TCC
    SEQ ID NO: 502 GGGTATATACTTTTTATTTTTTA
    TAAATATATATTTTTTTATTTT
    TTATATATATATATAGTATATAC
    CC
    SEQ ID NO: 503 GGATATACACTTTTTATTTTTGA
    TATAAATATATTTTTTTATTTT
    TTATATATATATATCGTGTATAT
    CC
    SEQ ID NO: 504 GGATATACACTTTTTATTTTTGA
    TATATAAATATTTTTTTATTTT
    TTATATATATATATCGTGTATAT
    CC
    SEQ ID NO: 505 GGATATACACTTTTTATTTTTGA
    TAAATGAATATATTTTTATTT
    TTTATATACATATATCGTGTATA
    TCC
    SEQ ID NO: 506 GGGTATATACTTTTTATTTTTGA
    TATAAATATATTTTTTTATTTT
    TTATATATATATATCGTATATAC
    CC
    SEQ ID NO: 507 GGGTATATACTTTTTATTTTTGA
    TATATAAATATTTTTTTATTTT
    TTATATATATATATCGTATATAC
    CC
    SEQ ID NO: 508 GGGTATATACTTTTTATTTTTGA
    TAAATGAATATATTTTTATTT
    TTTATATACATATATCGTATATA
    CCC
    SEQ ID NO: 509 GATATACTTTTTATTTTTGATAA
    ATATATAATTTTTATTTTTATA
    TATATATATCGTATATC
    SEQ ID NO: 510 GTGATACTTTTTATTTTTGATAA
    ATATATAATTTTTATTTTTATA
    TATATATATCGTATCAC
    SEQ ID NO: 511 GGTATACTTTTTATTTTTGATAA
    ATATATAATTTTTATTTTTATA
    TATATATATCGTATACC
    SEQ ID NO: 512 GGTGTACTTTTTATTTTTGATAA
    ATATATAATTTTTATTTTTATA
    TATATATATCGTACACC
    SEQ ID NO: 513 GTATATACATTTTTTATTTTTGA
    TAAATATATAATTTTTATTTTT
    ATATATATATATCATGTATATAC
    SEQ ID NO: 514 GGATATACATTTTTTATTTTTGA
    TAAATATATAATTTTTATTTTT
    ATATATATATATCATGTATATCC
    SEQ ID NO: 515 GGATATACACTTTTTATTTTTGA
    TAAATATATAATTTTTATTTT
    TATATATATATATCGTGTATATC
    C
    SEQ ID NO: 516 GGGTATATACTTTTTATTTTTGA
    TAAATATATAATTTTTATTTTT
    ATATATATATATCGTATATACCC
    SEQ ID NO: 517 GTATATACTTTTTATTTTTGATA
    AATATATTTTTTTATTTTTTAT
    ATATATATCGTATATAC
    SEQ ID NO: 518 GTATATACTTTTTATTTTTGATA
    AATGTATTTTTTTATTTTTTAT
    ACATATATCGTATATAC
    SEQ ID NO: 519 GGATATACTTTTTATTTTTGATA
    AATATATTTTTTTATTTTTTAT
    ATATATATCGTATATCC
    SEQ ID NO: 520 GGATATACTTTTTATTTTTGATA
    AATGTATTTTTTTATTTTTTAT
    ACATATATCGTATATCC
    SEQ ID NO: 521 GGATATACTTTTTATTTTTGATG
    ATAAATGTTTTTTATTTTTAC
    ATATATGATCGTATATCC
    SEQ ID NO: 522 GGTGATACTTTTTATTTTTGATA
    AATATATTTTTTTATTTTTTAT
    ATATATATCGTATCACC
    SEQ ID NO: 523 GGTGATACTTTTTATTTTTGATA
    AATGTATTTTTTTATTTTTTAT
    ACATATATCGTATCACC
    SEQ ID NO: 524 GGTGATCCTTTTTATTTTTGATA
    AATATATTTTTTTATTTTTTAT
    ATATATATCGGATCACC
    SEQ ID NO: 525 GGTGATCCTTTTTATTTTTGATA
    AATGTATTTTTTTATTTTTTAT
    ACATATATCGGATCACC
    SEQ ID NO: 526 GGTGATCCTTTTTATTTTTGATG
    ATAAATGTTTTTTATTTTTACA
    TATATGATCGGATCACC
    SEQ ID NO: 527 GTATATACATTTTTTATTTTTGA
    TAAATATATTTTTTTATTTTTT
    ATATATATATCATGTATATAC
    SEQ ID NO: 528 GTATATACATTTTTTATTTTTGA
    TAAATGTATTTTTTTATTTTTT
    ATACATATATCATGTATATAC
    SEQ ID NO: 529 GTATATACATTTTTTATTTTTGA
    TGATAAATGTTTTTTATTTTTA
    CATATATGATCATGTATATAC
    SEQ ID NO: 530 GGATATACATTTTTTATTTTTGA
    TAAATATATTTTTTTATTTTTT
    ATATATATATCATGTATATCC
    SEQ ID NO: 531 GGATATACACTTTTTATTTTTGA
    TAAATATATTTTTTTATTTTTT
    ATATATATATCGTGTATATCC
    SEQ ID NO: 532 GGATATACACTTTTTATTTTTGA
    TAAATGTATTTTTTTATTTTTT
    ATACATATATCGTGTATATCC
    SEQ ID NO: 533 GGATATACACTTTTTATTTTTGA
    TGATAAATGTTTTTTATTTTT
    ACATATATGATCGTGTATATCC
    SEQ ID NO: 534 GGGTATATACTTTTTATTTTTGA
    TAAATATATTTTTTTATTTTTT
    ATATATATATCGTATATACCC
    SEQ ID NO: 535 GGGTATATACTTTTTATTTTTGA
    TAAATGTATTTTTTTATTTTTT
    ATACATATATCGTATATACCC
    SEQ ID NO: 536 GGGTATATACTTTTTATTTTTGA
    TGATAAATGTTTTTTATTTTTA
    CATATATGATCGTATATACCC
    SEQ ID NO: 537 GTATATACATTTTTTATTTTTGA
    TAAATATTTTTTTATTTTTTAT
    ATATATCATGTATATAC
    SEQ ID NO: 538 GTATATACATTTTTTATTTTTGA
    TAAATGTTTTTTTATTTTTTAC
    ATATATCATGTATATAC
    SEQ ID NO: 539 GGATATACATTTTTTATTTTTGA
    TAAATATTTTTTTATTTTTTAT
    ATATATCATGTATATCC
    SEQ ID NO: 540 GGATATACATTTTTTATTTTTGA
    TAAATGTTTTTTTATTTTTTAC
    ATATATCATGTATATCC
    SEQ ID NO: 541 GGATATACATTTTTTATTTTTGA
    TGATGAATTTTTTATTTTTATA
    CATGATCATGTATATCC
    SEQ ID NO: 542 GGATATACACTTTTTATTTTTGA
    TAAATATTTTTTTATTTTTTAT
    ATATATCGTGTATATCC
    SEQ ID NO: 543 GGATATACACTTTTTATTTTTGA
    TAAATGTTTTTTTATTTTTTAC
    ATATATCGTGTATATCC
    SEQ ID NO: 544 GGGTATATACTTTTTATTTTTGA
    TAAATATTTTTTTATTTTTTAT
    ATATATCGTATATACCC
    SEQ ID NO: 545 GGGTATATACTTTTTATTTTTGA
    TAAATGTTTTTTTATTTTTTAC
    ATATATCGTATATACCC
    SEQ ID NO: 546 GGATGTACACTTTTTATTTTTGA
    TAAATATTTTTTTATTTTTTAT
    ATATATCGTGTACATCC
    SEQ ID NO: 547 GGATGTACACTTTTTATTTTTGA
    TAAATGTTTTTTTATTTTTTAC
    ATATATCGTGTACATCC
    SEQ ID NO: 548 GTACATATATTTTTTTATTTTTG
    ATAAATATTTTTTTATTTTTTA
    TATATATCAATATATGTAC
    SEQ ID NO: 549 GTACATATATTTTTTTATTTTTG
    ATAAATGTTTTTTTATTTTTTA
    CATATATCAATATATGTAC
    SEQ ID NO: 550 GGTACATATATTTTTTATTTTTG
    ATAAATATTTTTTTATTTTTTA
    TATATATCATATATGTACC
    SEQ ID NO: 551 GGTACATATATTTTTTATTTTTG
    ATAAATGTTTTTTTATTTTTTA
    CATATATCATATATGTACC
    SEQ ID NO: 552 CGATCATATATTTTTTTATTTTT
    GATAAATATTTTTTTATTTTTT
    ATATATATCAATATATGATCG
    SEQ ID NO: 553 CGATCATATATTTTTTTATTTTT
    GATAAATGTTTTTTTATTTTTT
    ACATATATCAATATATGATCG
    SEQ ID NO: 554 CGATCATATATTTTTTTATTTTT
    GATGATGAATTTTTTATTTTTA
    TACATGATCAATATATGATCG
    SEQ ID NO: 555 CGATCATATATTTTTTTATTTTT
    GATGATAAATTTTTTATTTTTA
    TATATGATCAATATATGATCG
    SEQ ID NO: 556 GTATATACTTTTTATTTTTGATA
    TAAATATATAATTTTTATTTTT
    ATATATATATATATCGTATATAC
    SEQ ID NO: 557 GTATATACTTTTTATTTTTGATA
    AATGAATATATTTTTTATTTTT
    ATATATACATATATCGTATATAC
    SEQ ID NO: 558 GGATATACTTTTTATTTTTGATA
    TAAATATATAATTTTTATTTTT
    ATATATATATATATCGTATATCC
    SEQ ID NO: 559 GGATATACTTTTTATTTTTGATA
    AATGAATATATTTTTTATTTTT
    ATATATACATATATCGTATATCC
    SEQ ID NO: 560 GGTGATACTTTTTATTTTTGATA
    TAAATATATAATTTTTATTTTT
    ATATATATATATATCGTATCACC
    SEQ ID NO: 561 GGTGATACTTTTTATTTTTGATA
    AATGAATATATTTTTTATTTTT
    ATATATACATATATCGTATCACC
    SEQ ID NO: 562 GGTGATCCTTTTTATTTTTGATA
    TAAATATATAATTTTTATTTTT
    ATATATATATATATCGGATCACC
    SEQ ID NO: 563 GGTGATCCTTTTTATTTTTGATA
    AATGAATATATTTTTTATTTTT
    ATATATACATATATCGGATCACC
    SEQ ID NO: 564 GTATATACTTTTTATTTTTGATA
    TAAGTAAATATTTTTTATTTTT
    ATATATACATATATCGTATATAC
    SEQ ID NO: 565 GGATATACTTTTTATTTTTGATA
    TAAGTAAATATTTTTTATTTTT
    ATATATACATATATCGTATATCC
    SEQ ID NO: 566 GGTGATACTTTTTATTTTTGATA
    TAAGTAAATATTTTTTATTTTT
    ATATATACATATATCGTATCACC
    SEQ ID NO: 567 GGTGATCCTTTTTATTTTTGATA
    TAAGTAAATATTTTTTATTTTT
    ATATATACATATATCGGATCACC
    SEQ ID NO: 568 GTATATACTTTTTATTTTTTATA
    AATATATATTTTTTTATTTTTT
    ATATATATATATAGTATATAC
    SEQ ID NO: 569 GTATATACTTTTTATTTTTGATA
    TAAATATATTTTTTTATTTTTT
    ATATATATATATCGTATATAC
    SEQ ID NO: 570 GTATATACTTTTTATTTTTGATA
    AATGAATATATTTTTATTTTTT
    ATATACATATATCGTATATAC
    SEQ ID NO: 571 GGATATACTTTTTATTTTTTATA
    AATATATATTTTTTTATTTTTT
    ATATATATATATAGTATATCC
    SEQ ID NO: 572 GGATATACTTTTTATTTTTGATA
    TAAATATATTTTTTTATTTTTT
    ATATATATATATCGTATATCC
    SEQ ID NO: 573 GGATATACTTTTTATTTTTGATA
    AATGAATATATTTTTATTTTTT
    ATATACATATATCGTATATCC
    SEQ ID NO: 574 GGTGATACTTTTTATTTTTTATA
    AATATATATTTTTTTATTTTTT
    ATATATATATATAGTATCACC
    SEQ ID NO: 575 GGTGATACTTTTTATTTTTGATA
    TAAATATATTTTTTTATTTTTT
    ATATATATATATCGTATCACC
    SEQ ID NO: 576 GGTGATACTTTTTATTTTTGATA
    AATGAATATATTTTTATTTTTT
    ATATACATATATCGTATCACC
    SEQ ID NO: 577 GGTGATCCTTTTTATTTTTTATA
    AATATATATTTTTTTATTTTTT
    ATATATATATATAGGATCACC
    SEQ ID NO: 578 GGTGATCCTTTTTATTTTTGATA
    TAAATATATTTTTTTATTTTTT
    ATATATATATATCGGATCACC
    SEQ ID NO: 579 GGTGATCCTTTTTATTTTTGATA
    AATGAATATATTTTTATTTTTT
    ATATACATATATCGGATCACC
    SEQ ID NO: 580 GTATATACTTTTTATTTTTGATA
    TATAAATATTTTTTTATTTTTT
    ATATATATATATCGTATATAC
    SEQ ID NO: 581 GGATATACTTTTTATTTTTGATA
    TATAAATATTTTTTTATTTTTT
    ATATATATATATCGTATATCC
    SEQ ID NO: 582 GGTGATACTTTTTATTTTTGATA
    TATAAATATTTTTTTATTTTTT
    ATATATATATATCGTATCACC
    SEQ ID NO: 583 GGTGATCCTTTTTATTTTTGATA
    TATAAATATTTTTTTATTTTTT
    ATATATATATATCGGATCACC
    SEQ ID NO: 584 GATACAAAAAAAAAAATATATAT
    ATATATATAAAAAAAAAAA
    ATATATATATATATAGTATC
    SEQ ID NO: 585 GACACAAAAAAAAAAAGATATAT
    ATATATATAAAAAAAAAAA
    ATATATATATATATCGTGTC
    SEQ ID NO: 586 GATATACAAAAAAAAAAATATAT
    ATATATATAAAAAAAAAAA
    ATATATATATATAGTATATC
    SEQ ID NO: 587 GATATATAAAAAAAAAAAGATAT
    ATGTATATAAAAAAAAAAA
    ATATACATATATCATATATC
    SEQ ID NO: 588 GATATACAAAAAAAAAAAGATAT
    ATATATATAAAAAAAAAAA
    ATATATATATATCGTATATC
    SEQ ID NO: 589 GGTATACAAAAAAAAAAATATAT
    ATATATATAAAAAAAAAAA
    ATATATATATATAGTATACC
    SEQ ID NO: 590 GATATATCACAAAAAAAAAAATA
    TATATATAAAAAAAAAAAA
    TATATATATAGTGATATATC
    SEQ ID NO: 591 GTATATACATAAAAAAAAAAAGA
    TATATGTAAAAAAAAAAAA
    TACATATATCATGTATATAC
    SEQ ID NO: 592 GGATATACATAAAAAAAAAAAGA
    TATATGTAAAAAAAAAAA
    ATACATATATCATGTATATCC
    SEQ ID NO: 593 GGATATACATAAAAAAAAAAAGA
    TCATGTATAAAAAAAAAAA
    ATACATGATCATGTATATCC
    SEQ ID NO: 594 GGGTATATACAAAAAAAAAAATA
    TATATATAAAAAAAAAAAA
    TATATATATAGTATATACCC
    SEQ ID NO: 595 GTATATACAAAAAAAAAAATATA
    TATATATATATAAAAAAAA
    AAAATATATATATATATAGTATA
    TAC
    SEQ ID NO: 596 GTATATACAAAAAAAAAAAGATA
    TATATATATATAAAAAAAA
    AAAATATATATATATATCGTATA
    TAC
    SEQ ID NO: 597 GGATATACAAAAAAAAAAATATA
    TATATATATATAAAAAAAA
    AAAATATATATATATATAGTATA
    TCC
    SEQ ID NO: 598 GGATATACAAAAAAAAAAAGATA
    TATATATATATAAAAAAAA
    AAAATATATATATATATCGTATA
    TCC
    SEQ ID NO: 599 GTATATACAAAAAAAAAAATATA
    TATATATATAAAAAAAAAA
    AATATATATATATATAGTATATA
    C
    SEQ ID NO: 600 GTATATACAAAAAAAAAAAGATA
    TATATATATAAAAAAAAAA
    AATATATATATATATCGTATATA
    C
    SEQ ID NO: 601 GGATATACAAAAAAAAAAATATA
    TATATATATAAAAAAAAAA
    AATATATATATATATAGTATATC
    C
    SEQ ID NO: 602 GGATATACAAAAAAAAAAAGATA
    TATATATATAAAAAAAAAA
    AATATATATATATATCGTATATC
    C
    SEQ ID NO: 603 GATATATCACAAAAAAAAAAATA
    TATATATATAAAAAAAAAA
    AATATATATATATAGTGATATAT
    C
    SEQ ID NO: 604 GGATATACATAAAAAAAAAAAGA
    TATATATATAAAAAAAAAA
    AATATATATATATCATGTATATC
    C
    SEQ ID NO: 605 GTACATATATTAAAAAAAAAAAG
    ATATATATAAAAAAAAAAA
    ATATATATATCAATATATGTAC
    SEQ ID NO: 606 GATGTATATACAAAAAAAAAAAT
    ATATATATAAAAAAAAAAA
    ATATATATATAGTATATACATC
    SEQ ID NO: 607 CGATCATATATTAAAAAAAAAAA
    GATATATATAAAAAAAAAA
    AATATATATATCAATATATGATC
    G
    SEQ ID NO: 608 CGATCATATATTAAAAAAAAAAA
    GATATATGTAAAAAAAAAA
    AATACATATATCAATATATGATC
    G
    SEQ ID NO: 609 GATACAAAAAAAAAAATATAAAT
    ATATATATAAAAAAAAAAA
    ATATATATATATATAGTATC
    SEQ ID NO: 610 GGATCAAAAAAAAAAATATAAAT
    ATATATATAAAAAAAAAAA
    ATATATATATATATAGATCC
    SEQ ID NO: 611 GACACAAAAAAAAAAAGATAAAT
    ATATATATAAAAAAAAAA
    AATATATATATATATCGTGTC
    SEQ ID NO: 612 GACACAAAAAAAAAAAGATGATG
    TATATATAAAAAAAAAAA
    ATATATATACATGATCGTGTC
    SEQ ID NO: 613 GCGTCAAAAAAAAAAAGATAAAT
    ATATATATAAAAAAAAAAA
    ATATATATATATATCGACGC
    SEQ ID NO: 614 GATATACAAAAAAAAAAATATAA
    ATATATATAAAAAAAAAAA
    ATATATATATATAGTATATC
    SEQ ID NO: 615 GTATATACATAAAAAAAAAAAGA
    TAAATGTAAAAAAAAAAA
    ATACATATATCATGTATATAC
    SEQ ID NO: 616 GTATATACATAAAAAAAAAAAGA
    TGATATATAAAAAAAAAAA
    ATATATGATCATGTATATAC
    SEQ ID NO: 617 GGATATACATAAAAAAAAAAAGA
    TAAATATAAAAAAAAAAA
    ATATATATATCATGTATATCC
    SEQ ID NO: 618 GGATATACATAAAAAAAAAAAGA
    TGATATATAAAAAAAAAA
    AATATATGATCATGTATATCC
    SEQ ID NO: 619 GTATATACAAAAAAAAAAATATA
    AATATATATATAAAAAAAA
    AAAATATATATATATATAGTATA
    TAC
    SEQ ID NO: 620 GTATATACAAAAAAAAAAAGATA
    AATATATATATAAAAAAAA
    AAAATATATATATATATCGTATA
    TAC
    SEQ ID NO: 621 GGATATACAAAAAAAAAAATATA
    AATATATATATAAAAAAAA
    AAAATATATATATATATAGTATA
    TCC
    SEQ ID NO: 622 GGATATACAAAAAAAAAAAGATA
    AATATATATATAAAAAAAA
    AAAATATATATATATATCGTATA
    TCC
    SEQ ID NO: 623 GTATATACAAAAAAAAAAAGATA
    AATGTATATAAAAAAAAAA
    AATATATACATATATCGTATATA
    C
    SEQ ID NO: 624 GGATATACAAAAAAAAAAAGATA
    AATGTATATAAAAAAAAA
    AAATATATACATATATCGTATAT
    CC
    SEQ ID NO: 625 GGTGATACAAAAAAAAAAAGATG
    ATGTATATATAAAAAAAAA
    AAATATATACATGATCGTATCAC
    C
    SEQ ID NO: 626 GATATATCACAAAAAAAAAAATA
    TAAATATATATAAAAAAAA
    AAAATATATATATATAGTGATAT
    ATC
    SEQ ID NO: 627 GTATATACATAAAAAAAAAAAGA
    TAAATATATAAAAAAAAAA
    AATATATATATATCATGTATATA
    C
    SEQ ID NO: 628 GTATATACATAAAAAAAAAAAGA
    TGATATATGTAAAAAAAAA
    AAACATATATGATCATGTATATA
    C
    SEQ ID NO: 629 GGATATACATAAAAAAAAAAAGA
    TAAATATATAAAAAAAAA
    AAATATATATATATCATGTATAT
    CC
    SEQ ID NO: 630 GTACATATATTAAAAAAAAAAAG
    ATAAATATAAAAAAAAAAA
    ATATATATATCAATATATGTAC
    SEQ ID NO: 631 GTACATATATTAAAAAAAAAAAG
    ATAAATGTAAAAAAAAAAA
    ATACATATATCAATATATGTAC
    SEQ ID NO: 632 GTACATATATTAAAAAAAAAAAG
    ATGATATATAAAAAAAAAA
    AATATATGATCAATATATGTAC
    SEQ ID NO: 633 GGATATACATAAAAAAAAAAAGA
    TGATGAATAAAAAAAAAA
    AATACATGATCATGTATATCC
    SEQ ID NO: 634 GTATATACATAAAAAAAAAAAGA
    TAAATGTTAAAAAAAAAAA
    TACATATATCATGTATATAC
    SEQ ID NO: 635 GATACAAAAAAAAAAAGATATAA
    ATATATAAAAAAAAAAAA
    AATATATATATATATCGTATC
    SEQ ID NO: 636 GATACAAAAAAAAAAAGATGATA
    TAAGTACTAAAAAAAAAA
    AAGTACATATATGATCGTATC
    SEQ ID NO: 637 GACACAAAAAAAAAAAGATAAAT
    GAATATATAAAAAAAAAA
    AATATATACATATATCGTGTC
    SEQ ID NO: 638 GGATATACAAAAAAAAAAAGATA
    TAAGTAAATATAAAAAAA
    AAAAATATATACATATATCGTAT
    ATCC
    SEQ ID NO: 639 GGATATACAAAAAAAAAAAGATG
    ATATAAGTACTAAAAAAAA
    AAAAGTACATATATGATCGTATA
    TCC
    SEQ ID NO: 640 GTATATACAAAAAAAAAAAGATA
    TAAGTAAATATAAAAAAAA
    AAAATATATACATATATCGTATA
    TAC
    SEQ ID NO: 641 GTATATACAAAAAAAAAAAGATG
    ATATAAGTACTAAAAAAAA
    AAAAGTACATATATGATCGTATA
    TAC
    SEQ ID NO: 642 GGATATACAAAAAAAAAAAGATA
    AATGAATATAAAAAAAAA
    AAATATATACATATATCGTATAT
    CC
    SEQ ID NO: 643 GTATATACAAAAAAAAAAAGATA
    AATGAATATAAAAAAAAA
    AAATATATACATATATCGTATAT
    AC
    SEQ ID NO: 644 GTATATACAAAAAAAAAAAGATG
    ATATAAGTACAAAAAAAAA
    AAGTACATATATGATCGTATATA
    C
    SEQ ID NO: 645 GTATATACAAAAAAAAAAATATA
    AATATATATTAAAAAAAAA
    AATATATATATATATAGTATATA
    C
    SEQ ID NO: 646 GTATATACATAAAAAAAAAAAGA
    TGATGTAAATATAAAAAAA
    AAAAATATATACATGATCATGTA
    TATAC
    SEQ ID NO: 647 GATATACAAAAAAAAAAAGATAA
    ATATATAAAAAAAAAAAA
    AATATATATATATCGTATATC
    SEQ ID NO: 648 GTGATACAAAAAAAAAAAGATAA
    ATATATAAAAAAAAAAAA
    AATATATATATATCGTATCAC
    SEQ ID NO: 649 GGTATACAAAAAAAAAAAGATAA
    ATATATAAAAAAAAAAAA
    AATATATATATATCGTATACC
    SEQ ID NO: 650 GGATATACATAAAAAAAAAAAGA
    TAAATGAATAAAAAAAAA
    AAATATACATATATCATGTATAT
    CC
    SEQ ID NO: 651 GTATATACATAAAAAAAAAAAGA
    TAAATGTATTAAAAAAAAA
    AATATACATATATCATGTATATA
    C
    SEQ ID NO: 652 GTATATACATAAAAAAAAAAAGA
    TGATAAATGTAAAAAAAAA
    AAACATATATGATCATGTATATA
    C
    SEQ ID NO: 653 GATACTTTTTATTTTTTATATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*A
    *G*T*A*T*C
    SEQ ID NO: 654 GACACTTTTTATTTTTTATATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*A
    *G*T*G*T*C
    SEQ ID NO: 655 GATACTTTTTATTTTTGATATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*C
    SEQ ID NO: 656 GGATCTTTTTATTTTTTATATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*A
    *G*A*T*C*C
    SEQ ID NO: 657 GACACTTTTTATTTTTGATATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*C
    *G*T*G*T*C
    SEQ ID NO: 658 GGATCTTTTTATTTTTGATATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*C
    *G*A*T*C*C
    SEQ ID NO: 659 GCGTCTTTTTATTTTTTATATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*A
    *G*A*C*G*C
    SEQ ID NO: 660 GCGTCTTTTTATTTTTGATATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*C
    *G*A*C*G*C
    SEQ ID NO: 661 GTATACTTTTTATTTTTTATATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*A*G
    *T*A*T*A*C
    SEQ ID NO: 662 GTGATCTTTTTATTTTTTATATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*A*G
    *A*T*C*A*C
    SEQ ID NO: 663 GTATACTTTTTATTTTTGATATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *T*A*T*A*C
    SEQ ID NO: 664 GTATACTTTTTATTTTTGATATA
    TGTATATATTTTTATTTTTTAT
    A*T*A*C*A*T*A*T*A*T*C*G
    *T*A*T*A*C
    SEQ ID NO: 665 GGATACTTTTTATTTTTTATATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*A*G
    *T*A*T*C*C
    SEQ ID NO: 666 GTGATCTTTTTATTTTTGATATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *A*T*C*A*C
    SEQ ID NO: 667 GTGATCTTTTTATTTTTGATATA
    TGTATATATTTTTATTTTTTAT
    A*T*A*C*A*T*A*T*A*T*C*G
    *A*T*C*A*C
    SEQ ID NO: 668 GGATACTTTTTATTTTTGATATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *T*A*T*C*C
    SEQ ID NO: 669 GGATACTTTTTATTTTTGATATA
    TGTATATATTTTTATTTTTTAT
    A*T*A*C*A*T*A*T*A*T*C*G
    *T*A*T*C*C
    SEQ ID NO: 670 GCGATCTTTTTATTTTTTATATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*A*G
    *A*T*C*G*C
    SEQ ID NO: 671 GCGATCTTTTTATTTTTGATATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *A*T*C*G*C
    SEQ ID NO: 672 GCGATCTTTTTATTTTTGATATA
    TGTATATATTTTTATTTTTTAT
    A*T*A*C*A*T*A*T*A*T*C*G
    *A*T*C*G*C
    SEQ ID NO: 673 GATATACTTTTTATTTTTTATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*G*T
    *A*T*A*T*C
    SEQ ID NO: 674 GATATATTTTTTATTTTTGATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*C*A*T
    *A*T*A*T*C
    SEQ ID NO: 675 GATATATTTTTTATTTTTGATAT
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*A*T*A*T*C*A*T
    *A*T*A*T*C
    SEQ ID NO: 676 GTGATACTTTTTATTTTTTATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*G*T
    *A*T*C*A*C
    SEQ ID NO: 677 GATATACTTTTTATTTTTGATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*C*G*T
    *A*T*A*T*C
    SEQ ID NO: 678 GATATACTTTTTATTTTTGATAT
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*A*T*A*T*C*G*T
    *A*T*A*T*C
    SEQ ID NO: 679 GGTATACTTTTTATTTTTTATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*G*T
    *A*T*A*C*C
    SEQ ID NO: 680 GTGATACTTTTTATTTTTGATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*C*G*T
    *A*T*C*A*C
    SEQ ID NO: 681 GTGATACTTTTTATTTTTGATAT
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*A*T*A*T*C*G*T
    *A*T*C*A*C
    SEQ ID NO: 682 GGTATACTTTTTATTTTTGATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*C*G*T
    *A*T*A*C*C
    SEQ ID NO: 683 GGTATACTTTTTATTTTTGATAT
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*A*T*A*T*C*G*T
    *A*T*A*C*C
    SEQ ID NO: 684 GGTGTACTTTTTATTTTTTATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*G*T
    *A*C*A*C*C
    SEQ ID NO: 685 GGTGTACTTTTTATTTTTGATAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*C*G*T
    *A*C*A*C*C
    SEQ ID NO: 686 GGTGTACTTTTTATTTTTGATAT
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*A*T*A*T*C*G*T
    *A*C*A*C*C
    SEQ ID NO: 687 GTATATACTTTTTATTTTTTATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 688 GTATATACTTTTTATTTTTGATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*C*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 689 GTATATACTTTTTATTTTTGATA
    TATGTATATTTTTATTTTTTAT
    A*C*A*T*A*T*A*T*C*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 690 GTATATACTTTTTATTTTTGATC
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*G*A*T*C*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 691 GTATATACTTTTTATTTTTGATC
    ATATATGTTTTTTATTTTTACA
    T*A*T*A*T*G*A*T*C*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 692 GGATATACTTTTTATTTTTTATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 693 GGATATACTTTTTATTTTTGATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*C*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 694 GGATATACTTTTTATTTTTGATA
    TATGTATATTTTTATTTTTTAT
    A*C*A*T*A*T*A*T*C*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 695 GGATATACTTTTTATTTTTGATC
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*G*A*T*C*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 696 GGATATACTTTTTATTTTTGATC
    ATATATGTTTTTTATTTTTACA
    T*A*T*A*T*G*A*T*C*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 697 GGTGATACTTTTTATTTTTTATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*G*T*A
    *T*C*A*C*C
    SEQ ID NO: 698 GGTGATACTTTTTATTTTTGATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*C*G*T*A
    *T*C*A*C*C
    SEQ ID NO: 699 GGTGATACTTTTTATTTTTGATA
    TATGTATATTTTTATTTTTTAT
    A*C*A*T*A*T*A*T*C*G*T*A
    *T*C*A*C*C
    SEQ ID NO: 700 GGTGATACTTTTTATTTTTGATC
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*G*A*T*C*G*T*A
    *T*C*A*C*C
    SEQ ID NO: 701 GGTGATACTTTTTATTTTTGATC
    ATATATGTTTTTTATTTTTACA
    T*A*T*A*T*G*A*T*C*G*T*A
    *T*C*A*C*C
    SEQ ID NO: 702 GGTGATCCTTTTTATTTTTTATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*G*G*A
    *T*C*A*C*C
    SEQ ID NO: 703 GGTGATCCTTTTTATTTTTGATA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*C*G*G*A
    *T*C*A*C*C
    SEQ ID NO: 704 GGTGATCCTTTTTATTTTTGATA
    TATGTATATTTTTATTTTTTAT
    A*C*A*T*A*T*A*T*C*G*G*A
    *T*C*A*C*C
    SEQ ID NO: 705 GGTGATCCTTTTTATTTTTGATC
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*G*A*T*C*G*G*A
    *T*C*A*C*C
    SEQ ID NO: 706 GGTGATCCTTTTTATTTTTGATC
    ATATATGTTTTTTATTTTTACA
    T*A*T*A*T*G*A*T*C*G*G*A
    *T*C*A*C*C
    SEQ ID NO: 707 GATATATCACTTTTTATTTTTTA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*G*T*G*A*T
    *A*T*A*T*C
    SEQ ID NO: 708 GTATATACATTTTTTATTTTTGA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*C*A*T*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 709 GTATATACATTTTTTATTTTTGA
    TATATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*C*A*T*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 710 GTATATACATTTTTTATTTTTGA
    TCATGTATTTTTTATTTTTATA
    C*A*T*G*A*T*C*A*T*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 711 GTATATACATTTTTTATTTTTGA
    TCATATATTTTTTATTTTTATA
    T*A*T*G*A*T*C*A*T*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 712 GGATATACACTTTTTATTTTTTA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*G*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 713 GGATATACATTTTTTATTTTTGA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*C*A*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 714 GGATATACATTTTTTATTTTTGA
    TATATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*C*A*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 715 GGATATACATTTTTTATTTTTGA
    TCATGTATTTTTTATTTTTATA
    C*A*T*G*A*T*C*A*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 716 GGATATACATTTTTTATTTTTGA
    TCATATATTTTTTATTTTTATA
    T*A*T*G*A*T*C*A*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 717 GGGTATATACTTTTTATTTTTTA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*G*T*A*T*A
    *T*A*C*C*C
    SEQ ID NO: 718 GGATATACACTTTTTATTTTTGA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*C*G*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 719 GGATATACACTTTTTATTTTTGA
    TATATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*C*G*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 720 GGATATACACTTTTTATTTTTGA
    TCATGTATTTTTTATTTTTATA
    C*A*T*G*A*T*C*G*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 721 GGATATACACTTTTTATTTTTGA
    TCATATATTTTTTATTTTTATA
    T*A*T*G*A*T*C*G*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 722 GGGTATATACTTTTTATTTTTGA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*C*G*T*A*T*A
    *T*A*C*C*C
    SEQ ID NO: 723 GGGTATATACTTTTTATTTTTGA
    TATATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*C*G*T*A*T*A
    *T*A*C*C*C
    SEQ ID NO: 724 GGGTATATACTTTTTATTTTTGA
    TCATGTATTTTTTATTTTTATA
    C*A*T*G*A*T*C*G*T*A*T*A
    *T*A*C*C*C
    SEQ ID NO: 725 GGGTATATACTTTTTATTTTTGA
    TCATATATTTTTTATTTTTATA
    T*A*T*G*A*T*C*G*T*A*T*A
    *T*A*C*C*C
    SEQ ID NO: 726 GGATGTACACTTTTTATTTTTTA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*G*T*G*T*A
    *C*A*T*C*C
    SEQ ID NO: 727 GGATGTACACTTTTTATTTTTGA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*C*G*T*G*T*A
    *C*A*T*C*C
    SEQ ID NO: 728 GGATGTACACTTTTTATTTTTGA
    TATATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*C*G*T*G*T*A
    *C*A*T*C*C
    SEQ ID NO: 729 GGATGTACACTTTTTATTTTTGA
    TCATGTATTTTTTATTTTTATA
    C*A*T*G*A*T*C*G*T*G*T*A
    *C*A*T*C*C
    SEQ ID NO: 730 GGATGTACACTTTTTATTTTTGA
    TCATATATTTTTTATTTTTATA
    T*A*T*G*A*T*C*G*T*G*T*A
    *C*A*T*C*C
    SEQ ID NO: 731 GTATATACTTTTTATTTTTTATA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*A*G*T*A*T*ATAC
    SEQ ID NO: 732 GTATATACTTTTTATTTTTGATA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*C*G*T*A*T*ATAC
    SEQ ID NO: 733 GGATATACTTTTTATTTTTTATA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*A*G*T*A*T*ATCC
    SEQ ID NO: 734 GGATATACTTTTTATTTTTGATA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*C*G*T*A*T*ATCC
    SEQ ID NO: 735 GGTGATACTTTTTATTTTTTATA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*A*G*T*A*T*CACC
    SEQ ID NO: 736 GGTGATACTTTTTATTTTTGATA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*C*G*T*A*T*CACC
    SEQ ID NO: 737 GGTGATCCTTTTTATTTTTTATA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*A*G*G*A*T*CACC
    SEQ ID NO: 738 GGTGATCCTTTTTATTTTTGATA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*C*G*G*A*T*CACC
    SEQ ID NO: 739 GATATATCACTTTTTATTTTTTA
    TATATATATATATTTTTTATTT
    TTATAT*A*T*A*T*A*T*A*T*
    A*T*A*G*T*G*A*TATATC
    SEQ ID NO: 740 GTATATACATTTTTTATTTTTGA
    TATATATATATATTTTTTATTT
    TTATAT*A*T*A*T*A*T*A*T*
    A*T*C*A*T*G*T*ATATAC
    SEQ ID NO: 741 GGATATACACTTTTTATTTTTTA
    TATATATATATATTTTTTATTT
    TTATAT*A*T*A*T*A*T*A*T*
    A*T*A*G*T*G*T*ATATCC
    SEQ ID NO: 742 GGATATACATTTTTTATTTTTGA
    TATATATATATATTTTTTATTT
    TTATAT*A*T*A*T*A*T*A*T*
    A*T*C*A*T*G*T*ATATCC
    SEQ ID NO: 743 GGGTATATACTTTTTATTTTTTA
    TATATATATATATTTTTTATTT
    TTATAT*A*T*A*T*A*T*A*T*
    A*T*A*G*T*A*T*ATACCC
    SEQ ID NO: 744 GGATATACACTTTTTATTTTTGA
    TATATATATATATTTTTTATTT
    TTATAT*A*T*A*T*A*T*A*T*
    A*T*C*G*T*G*T*ATATCC
    SEQ ID NO: 745 GGGTATATACTTTTTATTTTTGA
    TATATATATATATTTTTTATTT
    TTATAT*A*T*A*T*A*T*A*T*
    A*T*C*G*T*A*T*ATACCC
    SEQ ID NO: 746 GTATATACTTTTTATTTTTTATA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*A
    *G*T*A*T*A*TAC
    SEQ ID NO: 747 GTATATACTTTTTATTTTTGATA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*A*TAC
    SEQ ID NO: 748 GTATATACTTTTTATTTTTGATA
    TATGTATATATTTTTATTTTTT
    ATA*T*A*C*A*T*A*T*A*T*C
    *G*T*A*T*A*TAC
    SEQ ID NO: 749 GGATATACTTTTTATTTTTTATA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*A
    *G*T*A*T*A*TCC
    SEQ ID NO: 750 GGATATACTTTTTATTTTTGATA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*A*TCC
    SEQ ID NO: 751 GGATATACTTTTTATTTTTGATA
    TATGTATATATTTTTATTTTTT
    ATA*T*A*C*A*T*A*T*A*T*C
    *G*T*A*T*A*TCC
    SEQ ID NO: 752 GGTGATACTTTTTATTTTTTATA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*A
    *G*T*A*T*C*ACC
    SEQ ID NO: 753 GGTGATACTTTTTATTTTTGATA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*C*ACC
    SEQ ID NO: 754 GGTGATACTTTTTATTTTTGATA
    TATGTATATATTTTTATTTTTT
    ATA*T*A*C*A*T*A*T*A*T*C
    *G*T*A*T*C*ACC
    SEQ ID NO: 755 GGTGATCCTTTTTATTTTTTATA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*A
    *G*G*A*T*C*ACC
    SEQ ID NO: 756 GGTGATCCTTTTTATTTTTGATA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*G*A*T*C*ACC
    SEQ ID NO: 757 GGTGATCCTTTTTATTTTTGATA
    TATGTATATATTTTTATTTTTT
    ATA*T*A*C*A*T*A*T*A*T*C
    *G*G*A*T*C*ACC
    SEQ ID NO: 758 GATATATCACTTTTTATTTTTTA
    TATATATATATATTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *A*G*T*G*A*T*ATATC
    SEQ ID NO: 759 GTATATACATTTTTTATTTTTGA
    TATATATATATATTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*A*T*G*T*A*TATAC
    SEQ ID NO: 760 GTATATACATTTTTTATTTTTGA
    TATATGTATATATTTTTATTTT
    TTATA*T*A*C*A*T*A*T*A*T
    *C*A*T*G*T*A*TATAC
    SEQ ID NO: 761 GGATATACACTTTTTATTTTTTA
    TATATATATATATTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *A*G*T*G*T*A*TATCC
    SEQ ID NO: 762 GGATATACATTTTTTATTTTTGA
    TATATATATATATTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*A*T*G*T*A*TATCC
    SEQ ID NO: 763 GGATATACATTTTTTATTTTTGA
    TATATGTATATATTTTTATTTT
    TTATA*T*A*C*A*T*A*T*A*T
    *C*A*T*G*T*A*TATCC
    SEQ ID NO: 764 GGGTATATACTTTTTATTTTTTA
    TATATATATATATTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *A*G*T*A*T*A*TACCC
    SEQ ID NO: 765 GGATATACACTTTTTATTTTTGA
    TATATATATATATTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*G*T*G*T*A*TATCC
    SEQ ID NO: 766 GGATATACACTTTTTATTTTTGA
    TATATGTATATATTTTTATTTT
    TTATA*T*A*C*A*T*A*T*A*T
    *C*G*T*G*T*A*TATCC
    SEQ ID NO: 767 GGGTATATACTTTTTATTTTTGA
    TATATATATATATTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*G*T*A*T*A*TACCC
    SEQ ID NO: 768 GGGTATATACTTTTTATTTTTGA
    TATATGTATATATTTTTATTTT
    TTATA*T*A*C*A*T*A*T*A*T
    *C*G*T*A*T*A*TACCC
    SEQ ID NO: 769 GATATATCACTTTTTATTTTTTA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    G*T*G*A*T*A*TATC
    SEQ ID NO: 770 GTATATACATTTTTTATTTTTGA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*C*
    A*T*G*T*A*T*ATAC
    SEQ ID NO: 771 GTATATACATTTTTTATTTTTGA
    TATATGTATATTTTTTATTTTT
    ATAT*A*C*A*T*A*T*A*T*C*
    A*T*G*T*A*T*ATAC
    SEQ ID NO: 772 GGATATACACTTTTTATTTTTTA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    G*T*G*T*A*T*ATCC
    SEQ ID NO: 773 GGATATACATTTTTTATTTTTGA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*C*
    A*T*G*T*A*T*ATCC
    SEQ ID NO: 774 GGATATACATTTTTTATTTTTGA
    TATATGTATATTTTTTATTTTT
    ATAT*A*C*A*T*A*T*A*T*C*
    A*T*G*T*A*T*ATCC
    SEQ ID NO: 775 GGGTATATACTTTTTATTTTTTA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    G*T*A*T*A*T*ACCC
    SEQ ID NO: 776 GGATATACACTTTTTATTTTTGA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*C*
    G*T*G*T*A*T*ATCC
    SEQ ID NO: 777 GGATATACACTTTTTATTTTTGA
    TATATGTATATTTTTTATTTTT
    ATAT*A*C*A*T*A*T*A*T*C*
    G*T*G*T*A*T*ATCC
    SEQ ID NO: 778 GGGTATATACTTTTTATTTTTGA
    TATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*C*
    G*T*A*T*A*T*ACCC
    SEQ ID NO: 779 GGGTATATACTTTTTATTTTTGA
    TATATGTATATTTTTTATTTTT
    ATAT*A*C*A*T*A*T*A*T*C*
    G*T*A*T*A*T*ACCC
    SEQ ID NO: 780 GATATATCACTTTTTATTTTTTA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*G*T
    *G*A*T*A*T*ATC
    SEQ ID NO: 781 GTATATACATTTTTTATTTTTGA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*C*A*T
    *G*T*A*T*A*TAC
    SEQ ID NO: 782 GTATATACATTTTTTATTTTTGA
    TATATGTATATTTTTATTTTTT
    ATA*C*A*T*A*T*A*T*C*A*T
    *G*T*A*T*A*TAC
    SEQ ID NO: 783 GTATATACATTTTTTATTTTTGA
    TCATGTATATTTTTTATTTTTA
    TAT*A*C*A*T*G*A*T*C*A*T
    *G*T*A*T*A*TAC
    SEQ ID NO: 784 GTATATACATTTTTTATTTTTGA
    TCATATATGTTTTTTATTTTTA
    CAT*A*T*A*T*G*A*T*C*A*T
    *G*T*A*T*A*TAC
    SEQ ID NO: 785 GGATATACACTTTTTATTTTTTA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*G*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 786 GGATATACATTTTTTATTTTTGA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*C*A*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 787 GGATATACATTTTTTATTTTTGA
    TATATGTATATTTTTATTTTTT
    ATA*C*A*T*A*T*A*T*C*A*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 788 GGATATACATTTTTTATTTTTGA
    TCATGTATATTTTTTATTTTTA
    TAT*A*C*A*T*G*A*T*C*A*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 789 GGATATACATTTTTTATTTTTGA
    TCATATATGTTTTTTATTTTTA
    CAT*A*T*A*T*G*A*T*C*A*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 790 GGGTATATACTTTTTATTTTTTA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*G*T
    *A*T*A*T*A*CCC
    SEQ ID NO: 791 GGATATACACTTTTTATTTTTGA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*C*G*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 792 GGATATACACTTTTTATTTTTGA
    TATATGTATATTTTTATTTTTT
    ATA*C*A*T*A*T*A*T*C*G*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 793 GGATATACACTTTTTATTTTTGA
    TCATGTATATTTTTTATTTTTA
    TAT*A*C*A*T*G*A*T*C*G*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 794 GGATATACACTTTTTATTTTTGA
    TCATATATGTTTTTTATTTTTA
    CAT*A*T*A*T*G*A*T*C*G*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 795 GGGTATATACTTTTTATTTTTGA
    TATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*C*G*T
    *A*T*A*T*A*CCC
    SEQ ID NO: 796 GGGTATATACTTTTTATTTTTGA
    TATATGTATATTTTTATTTTTT
    ATA*C*A*T*A*T*A*T*C*G*T
    *A*T*A*T*A*CCC
    SEQ ID NO: 797 GGGTATATACTTTTTATTTTTGA
    TCATGTATATTTTTTATTTTTA
    TAT*A*C*A*T*G*A*T*C*G*T
    *A*T*A*T*A*CCC
    SEQ ID NO: 798 GGGTATATACTTTTTATTTTTGA
    TCATATATGTTTTTTATTTTTA
    CAT*A*T*A*T*G*A*T*C*G*T
    *A*T*A*T*A*CCC
    SEQ ID NO: 799 GTACATATATTTTTTTATTTTTG
    ATATATATATTTTTATTTTTTA
    TA*T*A*T*A*T*C*A*A*T*A*
    T*A*T*G*T*AC
    SEQ ID NO: 800 GTACATATATTTTTTTATTTTTG
    ATATATGTATTTTTATTTTTTA
    CA*T*A*T*A*T*C*A*A*T*A*
    T*A*T*G*T*AC
    SEQ ID NO: 801 GTACATATATTTTTTTATTTTTG
    ATCATGTATTTTTTATTTTTAT
    AC*A*T*G*A*T*C*A*A*T*A*
    T*A*T*G*T*AC
    SEQ ID NO: 802 GTACATATATTTTTTTATTTTTG
    ATCATATATTTTTTATTTTTAT
    AT*A*T*G*A*T*C*A*A*T*A*
    T*A*T*G*T*AC
    SEQ ID NO: 803 GATGTATATACTTTTTATTTTTT
    ATATATATATTTTTATTTTTTA
    TA*T*A*T*A*T*A*G*T*A*T*
    A*T*A*C*A*TC
    SEQ ID NO: 804 GGTACATATATTTTTTATTTTTG
    ATATATATATTTTTATTTTTTA
    TA*T*A*T*A*T*C*A*T*A*T*
    A*T*G*T*A*CC
    SEQ ID NO: 805 GGTACATATATTTTTTATTTTTG
    ATATATGTATTTTTATTTTTTA
    CA*T*A*T*A*T*C*A*T*A*T*
    A*T*G*T*A*CC
    SEQ ID NO: 806 GGTACATATATTTTTTATTTTTG
    ATCATGTATTTTTTATTTTTAT
    AC*A*T*G*A*T*C*A*T*A*T*
    A*T*G*T*A*CC
    SEQ ID NO: 807 GGTACATATATTTTTTATTTTTG
    ATCATATATTTTTTATTTTTAT
    AT*A*T*G*A*T*C*A*T*A*T*
    A*T*G*T*A*CC
    SEQ ID NO: 808 CGATCATATATTTTTTTATTTTT
    GATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*C*A*A*T*A
    *T*A*T*G*A*TCG
    SEQ ID NO: 809 CGATCATATATTTTTTTATTTTT
    GATATATGTATTTTTATTTTTT
    ACA*T*A*T*A*T*C*A*A*T*A
    *T*A*T*G*A*TCG
    SEQ ID NO: 810 CGATCATATATTTTTTTATTTTT
    GATCATGTATTTTTTATTTTTA
    TAC*A*T*G*A*T*C*A*A*T*A
    *T*A*T*G*A*TCG
    SEQ ID NO: 811 CGATCATATATTTTTTTATTTTT
    GATCATATATTTTTTATTTTTA
    TAT*A*T*G*A*T*C*A*A*T*A
    *T*A*T*G*A*TCG
    SEQ ID NO: 812 GATACTTTTTATTTTTTATAAAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*A
    *G*T*A*T*C
    SEQ ID NO: 813 GACACTTTTTATTTTTTATAAAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*A
    *G*T*G*T*C
    SEQ ID NO: 814 GATACTTTTTATTTTTGATAAAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*C
    SEQ ID NO: 815 GATACTTTTTATTTTTGATAAAT
    GTATATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*A*T*A*T*C
    *G*T*A*T*C
    SEQ ID NO: 816 GATACTTTTTATTTTTGATGATG
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*C*A*T*G*A*T*C
    *G*T*A*T*C
    SEQ ID NO: 817 GATACTTTTTATTTTTGATGATA
    TATGTACTTTTTTATTTTTAGT
    A*C*A*T*A*T*A*T*G*A*T*C
    *G*T*A*T*C
    SEQ ID NO: 818 GGATCTTTTTATTTTTTATAAAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*A
    *G*A*T*C*C
    SEQ ID NO: 819 GACACTTTTTATTTTTGATAAAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*C
    *G*T*G*T*C
    SEQ ID NO: 820 GACACTTTTTATTTTTGATAAAT
    GTATATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*A*T*A*T*C
    *G*T*G*T*C
    SEQ ID NO: 821 GACACTTTTTATTTTTGATGATG
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*C*A*T*G*A*T*C
    *G*T*G*T*C
    SEQ ID NO: 822 GACACTTTTTATTTTTGATGATA
    TATGTACTTTTTTATTTTTAGT
    A*C*A*T*A*T*A*T*G*A*T*C
    *G*T*G*T*C
    SEQ ID NO: 823 GGATCTTTTTATTTTTGATAAAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*C
    *G*A*T*C*C
    SEQ ID NO: 824 GGATCTTTTTATTTTTGATAAAT
    GTATATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*A*T*A*T*C
    *G*A*T*C*C
    SEQ ID NO: 825 GGATCTTTTTATTTTTGATGATG
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*C*A*T*G*A*T*C
    *G*A*T*C*C
    SEQ ID NO: 826 GGATCTTTTTATTTTTGATGATA
    TATGTACTTTTTTATTTTTAGT
    A*C*A*T*A*T*A*T*G*A*T*C
    *G*A*T*C*C
    SEQ ID NO: 827 GCGTCTTTTTATTTTTTATAAAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*A
    *G*A*C*G*C
    SEQ ID NO: 828 GCGTCTTTTTATTTTTGATAAAT
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*C
    *G*A*C*G*C
    SEQ ID NO: 829 GCGTCTTTTTATTTTTGATAAAT
    GTATATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*A*T*A*T*C
    *G*A*C*G*C
    SEQ ID NO: 830 GCGTCTTTTTATTTTTGATGATG
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*C*A*T*G*A*T*C
    *G*A*C*G*C
    SEQ ID NO: 831 GCGTCTTTTTATTTTTGATGATA
    TATGTACTTTTTTATTTTTAGT
    A*C*A*T*A*T*A*T*G*A*T*C
    *G*A*C*G*C
    SEQ ID NO: 832 GTATACTTTTTATTTTTGATAAA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *T*A*T*A*C
    SEQ ID NO: 833 GTATACTTTTTATTTTTGATAAA
    TGTATATATTTTTATTTTTTAT
    A*T*A*C*A*T*A*T*A*T*C*G
    *T*A*T*A*C
    SEQ ID NO: 834 GTATACTTTTTATTTTTGATGAT
    GTATATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*G*A*T*C*G
    *T*A*T*A*C
    SEQ ID NO: 835 GTATACTTTTTATTTTTGATGAT
    ATATGTACTTTTTATTTTTGTA
    C*A*T*A*T*A*T*G*A*T*C*G
    *T*A*T*A*C
    SEQ ID NO: 836 GTGATCTTTTTATTTTTGATAAA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *A*T*C*A*C
    SEQ ID NO: 837 GTGATCTTTTTATTTTTGATAAA
    TGTATATATTTTTATTTTTTAT
    A*T*A*C*A*T*A*T*A*T*C*G
    *A*T*C*A*C
    SEQ ID NO: 838 GTGATCTTTTTATTTTTGATGAT
    GTATATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*G*A*T*C*G
    *A*T*C*A*C
    SEQ ID NO: 839 GTGATCTTTTTATTTTTGATGAT
    ATATGTACTTTTTATTTTTGTA
    C*A*T*A*T*A*T*G*A*T*C*G
    *A*T*C*A*C
    SEQ ID NO: 840 GGATACTTTTTATTTTTGATAAA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *T*A*T*C*C
    SEQ ID NO: 841 GGATACTTTTTATTTTTGATAAA
    TGTATATATTTTTATTTTTTAT
    A*T*A*C*A*T*A*T*A*T*C*G
    *T*A*T*C*C
    SEQ ID NO: 842 GGATACTTTTTATTTTTGATGAT
    GTATATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*G*A*T*C*G
    *T*A*T*C*C
    SEQ ID NO: 843 GGATACTTTTTATTTTTGATGAT
    ATATGTACTTTTTATTTTTGTA
    C*A*T*A*T*A*T*G*A*T*C*G
    *T*A*T*C*C
    SEQ ID NO: 844 GCGATCTTTTTATTTTTGATAAA
    TATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *A*T*C*G*C
    SEQ ID NO: 845 GCGATCTTTTTATTTTTGATAAA
    TGTATATATTTTTATTTTTTAT
    A*T*A*C*A*T*A*T*A*T*C*G
    *A*T*C*G*C
    SEQ ID NO: 846 GCGATCTTTTTATTTTTGATGAT
    GTATATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*G*A*T*C*G
    *A*T*C*G*C
    SEQ ID NO: 847 GCGATCTTTTTATTTTTGATGAT
    ATATGTACTTTTTATTTTTGTA
    C*A*T*A*T*A*T*G*A*T*C*G
    *A*T*C*G*C
    SEQ ID NO: 848 GATATACTTTTTATTTTTTATAA
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*G*T
    *A*T*A*T*C
    SEQ ID NO: 849 GATATATTTTTTATTTTTGATAA
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*A*T*A*T*C*A*T
    *A*T*A*T*C
    SEQ ID NO: 850 GATATATTTTTTATTTTTGATGA
    TGTATATATTTTTATTTTTTAT
    A*T*A*C*A*T*G*A*T*C*A*T
    *A*T*A*T*C
    SEQ ID NO: 851 GATATATTTTTTATTTTTGATGA
    TATATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*G*A*T*C*A*T
    *A*T*A*T*C
    SEQ ID NO: 852 GTGATACTTTTTATTTTTTATAA
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*G*T
    *A*T*C*A*C
    SEQ ID NO: 853 GATATACTTTTTATTTTTGATAA
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*C*G*T
    *A*T*A*T*C
    SEQ ID NO: 854 GATATACTTTTTATTTTTGATGA
    TGTATATATTTTTATTTTTTAT
    A*T*A*C*A*T*G*A*T*C*G*T
    *A*T*A*T*C
    SEQ ID NO: 855 GATATACTTTTTATTTTTGATGA
    TATATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*G*A*T*C*G*T
    *A*T*A*T*C
    SEQ ID NO: 856 GGTATACTTTTTATTTTTTATAA
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*G*T
    *A*T*A*C*C
    SEQ ID NO: 857 GTGATACTTTTTATTTTTGATAA
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*C*G*T
    *A*T*C*A*C
    SEQ ID NO: 858 GTGATACTTTTTATTTTTGATAA
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*A*T*A*T*C*G*T
    *A*T*C*A*C
    SEQ ID NO: 859 GTGATACTTTTTATTTTTGATGA
    TGTATATATTTTTATTTTTTAT
    A*T*A*C*A*T*G*A*T*C*G*T
    *A*T*C*A*C
    SEQ ID NO: 860 GTGATACTTTTTATTTTTGATGA
    TATATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*G*A*T*C*G*T
    *A*T*C*A*C
    SEQ ID NO: 861 GGTATACTTTTTATTTTTGATAA
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*C*G*T
    *A*T*A*C*C
    SEQ ID NO: 862 GGTATACTTTTTATTTTTGATAA
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*A*T*A*T*C*G*T
    *A*T*A*C*C
    SEQ ID NO: 863 GGTATACTTTTTATTTTTGATGA
    TGTATATATTTTTATTTTTTAT
    A*T*A*C*A*T*G*A*T*C*G*T
    *A*T*A*C*C
    SEQ ID NO: 864 GGTATACTTTTTATTTTTGATGA
    TATATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*G*A*T*C*G*T
    *A*T*A*C*C
    SEQ ID NO: 865 GGTGTACTTTTTATTTTTTATAA
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*G*T
    *A*C*A*C*C
    SEQ ID NO: 866 GGTGTACTTTTTATTTTTGATAA
    ATATATATTTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*C*G*T
    *A*C*A*C*C
    SEQ ID NO: 867 GGTGTACTTTTTATTTTTGATAA
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*A*T*A*T*C*G*T
    *A*C*A*C*C
    SEQ ID NO: 868 GGTGTACTTTTTATTTTTGATGA
    TGTATATATTTTTATTTTTTAT
    A*T*A*C*A*T*G*A*T*C*G*T
    *A*C*A*C*C
    SEQ ID NO: 869 GGTGTACTTTTTATTTTTGATGA
    TATATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*G*A*T*C*G*T
    *A*C*A*C*C
    SEQ ID NO: 870 GTATATACTTTTTATTTTTGATA
    AATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*C*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 871 GTATATACTTTTTATTTTTGATA
    AATGTATATTTTTATTTTTTAT
    A*C*A*T*A*T*A*T*C*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 872 GTATATACTTTTTATTTTTGATG
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*G*A*T*C*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 873 GTATATACTTTTTATTTTTGATG
    ATATATGTTTTTTATTTTTACA
    T*A*T*A*T*G*A*T*C*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 874 GGATATACTTTTTATTTTTGATA
    AATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*C*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 875 GGATATACTTTTTATTTTTGATA
    AATGTATATTTTTATTTTTTAT
    A*C*A*T*A*T*A*T*C*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 876 GGATATACTTTTTATTTTTGATG
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*G*A*T*C*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 877 GGATATACTTTTTATTTTTGATG
    ATATATGTTTTTTATTTTTACA
    T*A*T*A*T*G*A*T*C*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 878 GGTGATACTTTTTATTTTTGATA
    AATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*C*G*T*A
    *T*C*A*C*C
    SEQ ID NO: 879 GGTGATACTTTTTATTTTTGATA
    AATGTATATTTTTATTTTTTAT
    A*C*A*T*A*T*A*T*C*G*T*A
    *T*C*A*C*C
    SEQ ID NO: 880 GGTGATACTTTTTATTTTTGATG
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*G*A*T*C*G*T*A
    *T*C*A*C*C
    SEQ ID NO: 881 GGTGATACTTTTTATTTTTGATG
    ATATATGTTTTTTATTTTTACA
    T*A*T*A*T*G*A*T*C*G*T*A
    *T*C*A*C*C
    SEQ ID NO: 882 GGTGATCCTTTTTATTTTTGATA
    AATATATATTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*C*G*G*A
    *T*C*A*C*C
    SEQ ID NO: 883 GGTGATCCTTTTTATTTTTGATA
    AATGTATATTTTTATTTTTTAT
    A*C*A*T*A*T*A*T*C*G*G*A
    *T*C*A*C*C
    SEQ ID NO: 884 GGTGATCCTTTTTATTTTTGATG
    ATGTATATTTTTTATTTTTATA
    T*A*C*A*T*G*A*T*C*G*G*A
    *T*C*A*C*C
    SEQ ID NO: 885 GGTGATCCTTTTTATTTTTGATG
    ATATATGTTTTTTATTTTTACA
    T*A*T*A*T*G*A*T*C*G*G*A
    *T*C*A*C*C
    SEQ ID NO: 886 GTATATACATTTTTTATTTTTGA
    TAAATATATTTTTATTTTTTAT
    A*T*A*T*A*T*C*A*T*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 887 GTATATACATTTTTTATTTTTGA
    TAAATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*C*A*T*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 888 GTATATACATTTTTTATTTTTGA
    TGATGTATTTTTTATTTTTATA
    C*A*T*G*A*T*C*A*T*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 889 GTATATACATTTTTTATTTTTGA
    TGATATATTTTTTATTTTTATA
    T*A*T*G*A*T*C*A*T*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 890 GGATATACATTTTTTATTTTTGA
    TAAATATATTTTTATTTTTTAT
    A*T*A*T*A*T*C*A*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 891 GGATATACATTTTTTATTTTTGA
    TAAATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*C*A*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 892 GGATATACATTTTTTATTTTTGA
    TGATGTATTTTTTATTTTTATA
    C*A*T*G*A*T*C*A*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 893 GGATATACATTTTTTATTTTTGA
    TGATATATTTTTTATTTTTATA
    T*A*T*G*A*T*C*A*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 894 GGATATACACTTTTTATTTTTGA
    TAAATATATTTTTATTTTTTAT
    A*T*A*T*A*T*C*G*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 895 GGATATACACTTTTTATTTTTGA
    TAAATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*C*G*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 896 GGATATACACTTTTTATTTTTGA
    TGATGTATTTTTTATTTTTATA
    C*A*T*G*A*T*C*G*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 897 GGATATACACTTTTTATTTTTGA
    TGATATATTTTTTATTTTTATA
    T*A*T*G*A*T*C*G*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 898 GGGTATATACTTTTTATTTTTGA
    TAAATATATTTTTATTTTTTAT
    A*T*A*T*A*T*C*G*T*A*T*A
    *T*A*C*C*C
    SEQ ID NO: 899 GGGTATATACTTTTTATTTTTGA
    TAAATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*C*G*T*A*T*A
    *T*A*C*C*C
    SEQ ID NO: 900 GGGTATATACTTTTTATTTTTGA
    TGATGTATTTTTTATTTTTATA
    C*A*T*G*A*T*C*G*T*A*T*A
    *T*A*C*C*C
    SEQ ID NO: 901 GGGTATATACTTTTTATTTTTGA
    TGATATATTTTTTATTTTTATA
    T*A*T*G*A*T*C*G*T*A*T*A
    *T*A*C*C*C
    SEQ ID NO: 902 GGATGTACACTTTTTATTTTTGA
    TAAATATATTTTTATTTTTTAT
    A*T*A*T*A*T*C*G*T*G*T*A
    *C*A*T*C*C
    SEQ ID NO: 903 GGATGTACACTTTTTATTTTTGA
    TAAATGTATTTTTATTTTTTAC
    A*T*A*T*A*T*C*G*T*G*T*A
    *C*A*T*C*C
    SEQ ID NO: 904 GGATGTACACTTTTTATTTTTGA
    TGATGTATTTTTTATTTTTATA
    C*A*T*G*A*T*C*G*T*G*T*A
    *C*A*T*C*C
    SEQ ID NO: 905 GGATGTACACTTTTTATTTTTGA
    TGATATATTTTTTATTTTTATA
    T*A*T*G*A*T*C*G*T*G*T*A
    *C*A*T*C*C
    SEQ ID NO: 906 GTATATACTTTTTATTTTTTATA
    AATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*A*G*T*A*T*ATAC
    SEQ ID NO: 907 GTATATACTTTTTATTTTTGATA
    AATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*C*G*T*A*T*ATAC
    SEQ ID NO: 908 GTATATACTTTTTATTTTTGATA
    AATGTATATATTTTTTATTTTT
    ATAT*A*T*A*C*A*T*A*T*A*
    T*C*G*T*A*T*ATAC
    SEQ ID NO: 909 GTATATACTTTTTATTTTTGATG
    ATGTATATATATTTTTATTTTT
    TATA*T*A*T*A*C*A*T*G*A*
    T*C*G*T*A*T*ATAC
    SEQ ID NO: 910 GTATATACTTTTTATTTTTGATG
    ATATATGTACTTTTTTATTTTT
    AGTA*C*A*T*A*T*A*T*G*A*
    T*C*G*T*A*T*ATAC
    SEQ ID NO: 911 GGATATACTTTTTATTTTTTATA
    AATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*A*G*T*A*T*ATCC
    SEQ ID NO: 912 GGATATACTTTTTATTTTTGATA
    AATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*C*G*T*A*T*ATCC
    SEQ ID NO: 913 GGATATACTTTTTATTTTTGATA
    AATGTATATATTTTTTATTTTT
    ATAT*A*T*A*C*A*T*A*T*A*
    T*C*G*T*A*T*ATCC
    SEQ ID NO: 914 GGATATACTTTTTATTTTTGATG
    ATGTATATATATTTTTATTTTT
    TATA*T*A*T*A*C*A*T*G*A*
    T*C*G*T*A*T*ATCC
    SEQ ID NO: 915 GGATATACTTTTTATTTTTGATG
    ATATATGTACTTTTTTATTTTT
    AGTA*C*A*T*A*T*A*T*G*A*
    T*C*G*T*A*T*ATCC
    SEQ ID NO: 916 GGTGATACTTTTTATTTTTTATA
    AATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*A*G*T*A*T*CACC
    SEQ ID NO: 917 GGTGATACTTTTTATTTTTGATA
    AATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*C*G*T*A*T*CACC
    SEQ ID NO: 918 GGTGATACTTTTTATTTTTGATA
    AATGTATATATTTTTTATTTTT
    ATAT*A*T*A*C*A*T*A*T*A*
    T*C*G*T*A*T*CACC
    SEQ ID NO: 919 GGTGATACTTTTTATTTTTGATG
    ATGTATATATATTTTTATTTTT
    TATA*T*A*T*A*C*A*T*G*A*
    T*C*G*T*A*T*CACC
    SEQ ID NO: 920 GGTGATACTTTTTATTTTTGATG
    ATATATGTACTTTTTTATTTTT
    AGTA*C*A*T*A*T*A*T*G*A*
    T*C*G*T*A*T*CACC
    SEQ ID NO: 921 GGTGATCCTTTTTATTTTTTATA
    AATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*A*G*G*A*T*CACC
    SEQ ID NO: 922 GGTGATCCTTTTTATTTTTGATA
    AATATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*C*G*G*A*T*CACC
    SEQ ID NO: 923 GGTGATCCTTTTTATTTTTGATA
    AATGTATATATTTTTTATTTTT
    ATAT*A*T*A*C*A*T*A*T*A*
    T*C*G*G*A*T*CACC
    SEQ ID NO: 924 GGTGATCCTTTTTATTTTTGATG
    ATGTATATATATTTTTATTTTT
    TATA*T*A*T*A*C*A*T*G*A*
    T*C*G*G*A*T*CACC
    SEQ ID NO: 925 GGTGATCCTTTTTATTTTTGATG
    ATATATGTACTTTTTTATTTTT
    AGTA*C*A*T*A*T*A*T*G*A*
    T*C*G*G*A*T*CACC
    SEQ ID NO: 926 GATATATCACTTTTTATTTTTTA
    TAAATATATATATTTTTTATTT
    TTATAT*A*T*A*T*A*T*A*T*
    A*T*A*G*T*G*A*TATATC
    SEQ ID NO: 927 GTATATACATTTTTTATTTTTGA
    TAAATATATATATTTTTTATTT
    TTATAT*A*T*A*T*A*T*A*T*
    A*T*C*A*T*G*T*ATATAC
    SEQ ID NO: 928 GTATATACATTTTTTATTTTTGA
    TAAATGTATATATTTTTTATTT
    TTATAT*A*T*A*C*A*T*A*T*
    A*T*C*A*T*G*T*ATATAC
    SEQ ID NO: 929 GTATATACATTTTTTATTTTTGA
    TGATGTATATATATTTTTATTT
    TTTATA*T*A*T*A*C*A*T*G*
    A*T*C*A*T*G*T*ATATAC
    SEQ ID NO: 930 GTATATACATTTTTTATTTTTGA
    TGATATATGTACTTTTTTATTT
    TTAGTA*C*A*T*A*T*A*T*G*
    A*T*C*A*T*G*T*ATATAC
    SEQ ID NO: 931 GGATATACACTTTTTATTTTTTA
    TAAATATATATATTTTTTATTT
    TTATAT*A*T*A*T*A*T*A*T*
    A*T*A*G*T*G*T*ATATCC
    SEQ ID NO: 932 GGATATACATTTTTTATTTTTGA
    TAAATATATATATTTTTTATTT
    TTATAT*A*T*A*T*A*T*A*T*
    A*T*C*A*T*G*T*ATATCC
    SEQ ID NO: 933 GGATATACATTTTTTATTTTTGA
    TAAATGTATATATTTTTTATTT
    TTATAT*A*T*A*C*A*T*A*T*
    A*T*C*A*T*G*T*ATATCC
    SEQ ID NO: 934 GGATATACATTTTTTATTTTTGA
    TGATGTATATATATTTTTATTT
    TTTATA*T*A*T*A*C*A*T*G*
    A*T*C*A*T*G*T*ATATCC
    SEQ ID NO: 935 GGATATACATTTTTTATTTTTGA
    TGATATATGTACTTTTTTATTT
    TTAGTA*C*A*T*A*T*A*T*G*
    A*T*C*A*T*G*T*ATATCC
    SEQ ID NO: 936 GGGTATATACTTTTTATTTTTTA
    TAAATATATATATTTTTTATTT
    TTATAT*A*T*A*T*A*T*A*T*
    A*T*A*G*T*A*T*ATACCC
    SEQ ID NO: 937 GGATATACACTTTTTATTTTTGA
    TAAATATATATATTTTTTATT
    TTTATAT*A*T*A*T*A*T*A*T
    *A*T*C*G*T*G*T*ATATCC
    SEQ ID NO: 938 GGATATACACTTTTTATTTTTGA
    TAAATGTATATATTTTTTATT
    TTTATAT*A*T*A*C*A*T*A*T
    *A*T*C*G*T*G*T*ATATCC
    SEQ ID NO: 939 GGATATACACTTTTTATTTTTGA
    TGATGTATATATATTTTTATT
    TTTTATA*T*A*T*A*C*A*T*G
    *A*T*C*G*T*G*T*ATATCC
    SEQ ID NO: 940 GGATATACACTTTTTATTTTTGA
    TGATATATGTACTTTTTTATTT
    TTAGTA*C*A*T*A*T*A*T*G*
    A*T*C*G*T*G*T*ATATCC
    SEQ ID NO: 941 GGGTATATACTTTTTATTTTTGA
    TAAATATATATATTTTTTATTT
    TTATAT*A*T*A*T*A*T*A*T*
    A*T*C*G*T*A*T*ATACCC
    SEQ ID NO: 942 GGGTATATACTTTTTATTTTTGA
    TAAATGTATATATTTTTTATTT
    TTATAT*A*T*A*C*A*T*A*T*
    A*T*C*G*T*A*T*ATACCC
    SEQ ID NO: 943 GGGTATATACTTTTTATTTTTGA
    TGATGTATATATATTTTTATTT
    TTTATA*T*A*T*A*C*A*T*G*
    A*T*C*G*T*A*T*ATACCC
    SEQ ID NO: 944 GGGTATATACTTTTTATTTTTGA
    TGATATATGTACTTTTTTATTT
    TTAGTA*C*A*T*A*T*A*T*G*
    A*T*C*G*T*A*T*ATACCC
    SEQ ID NO: 945 GTATATACTTTTTATTTTTGATA
    AATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*A*TAC
    SEQ ID NO: 946 GTATATACTTTTTATTTTTGATA
    AATGTATATATTTTTATTTTTT
    ATA*T*A*C*A*T*A*T*A*T*C
    *G*T*A*T*A*TAC
    SEQ ID NO: 947 GTATATACTTTTTATTTTTGATG
    ATGTATATATTTTTTATTTTTA
    TAT*A*T*A*C*A*T*G*A*T*C
    *G*T*A*T*A*TAC
    SEQ ID NO: 948 GTATATACTTTTTATTTTTGATG
    ATATATGTACTTTTTATTTTTG
    TAC*A*T*A*T*A*T*G*A*T*C
    *G*T*A*T*A*TAC
    SEQ ID NO: 949 GGATATACTTTTTATTTTTGATA
    AATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*A*TCC
    SEQ ID NO: 950 GGATATACTTTTTATTTTTGATA
    AATGTATATATTTTTATTTTTT
    ATA*T*A*C*A*T*A*T*A*T*C
    *G*T*A*T*A*TCC
    SEQ ID NO: 951 GGATATACTTTTTATTTTTGATG
    ATGTATATATTTTTTATTTTTA
    TAT*A*T*A*C*A*T*G*A*T*C
    *G*T*A*T*A*TCC
    SEQ ID NO: 952 GGATATACTTTTTATTTTTGATG
    ATATATGTACTTTTTATTTTTG
    TAC*A*T*A*T*A*T*G*A*T*C
    *G*T*A*T*A*TCC
    SEQ ID NO: 953 GGTGATACTTTTTATTTTTGATA
    AATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*C*ACC
    SEQ ID NO: 954 GGTGATACTTTTTATTTTTGATA
    AATGTATATATTTTTATTTTTT
    ATA*T*A*C*A*T*A*T*A*T*C
    *G*T*A*T*C*ACC
    SEQ ID NO: 955 GGTGATACTTTTTATTTTTGATG
    ATGTATATATTTTTTATTTTTA
    TAT*A*T*A*C*A*T*G*A*T*C
    *G*T*A*T*C*ACC
    SEQ ID NO: 956 GGTGATACTTTTTATTTTTGATG
    ATATATGTACTTTTTATTTTTG
    TAC*A*T*A*T*A*T*G*A*T*C
    *G*T*A*T*C*ACC
    SEQ ID NO: 957 GGTGATCCTTTTTATTTTTGATA
    AATATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*G*A*T*C*ACC
    SEQ ID NO: 958 GGTGATCCTTTTTATTTTTGATA
    AATGTATATATTTTTATTTTTT
    ATA*T*A*C*A*T*A*T*A*T*C
    *G*G*A*T*C*ACC
    SEQ ID NO: 959 GGTGATCCTTTTTATTTTTGATG
    ATGTATATATTTTTTATTTTTA
    TAT*A*T*A*C*A*T*G*A*T*C
    *G*G*A*T*C*ACC
    SEQ ID NO: 960 GGTGATCCTTTTTATTTTTGATG
    ATATATGTACTTTTTATTTTTG
    TAC*A*T*A*T*A*T*G*A*T*C
    *G*G*A*T*C*ACC
    SEQ ID NO: 961 GTATATACATTTTTTATTTTTGA
    TAAATATATATATTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*A*T*G*T*A*TATAC
    SEQ ID NO: 962 GTATATACATTTTTTATTTTTGA
    TGATGTATATATTTTTTATTTT
    TATAT*A*T*A*C*A*T*G*A*T
    *C*A*T*G*T*A*TATAC
    SEQ ID NO: 963 GTATATACATTTTTTATTTTTGA
    TGATATATGTACTTTTTATTTT
    TGTAC*A*T*A*T*A*T*G*A*T
    *C*A*T*G*T*A*TATAC
    SEQ ID NO: 964 GGATATACATTTTTTATTTTTGA
    TAAATATATATATTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*A*T*G*T*A*TATCC
    SEQ ID NO: 965 GGATATACATTTTTTATTTTTGA
    TAAATGTATATATTTTTATTTT
    TTATA*T*A*C*A*T*A*T*A*T
    *C*A*T*G*T*A*TATCC
    SEQ ID NO: 966 GGATATACATTTTTTATTTTTGA
    TGATGTATATATTTTTTATTTT
    TATAT*A*T*A*C*A*T*G*A*T
    *C*A*T*G*T*A*TATCC
    SEQ ID NO: 967 GGATATACATTTTTTATTTTTGA
    TGATATATGTACTTTTTATTTT
    TGTAC*A*T*A*T*A*T*G*A*T
    *C*A*T*G*T*A*TATCC
    SEQ ID NO: 968 GGATATACACTTTTTATTTTTGA
    TAAATATATATATTTTTATTT
    TTTATA*T*A*T*A*T*A*T*A*
    T*C*G*T*G*T*A*TATCC
    SEQ ID NO: 969 GGATATACACTTTTTATTTTTGA
    TAAATGTATATATTTTTATTT
    TTTATA*T*A*C*A*T*A*T*A*
    T*C*G*T*G*T*A*TATCC
    SEQ ID NO: 970 GGATATACACTTTTTATTTTTGA
    TGATGTATATATTTTTTATTTT
    TATAT*A*T*A*C*A*T*G*A*T
    *C*G*T*G*T*A*TATCC
    SEQ ID NO: 971 GGATATACACTTTTTATTTTTGA
    TGATATATGTACTTTTTATTTT
    TGTAC*A*T*A*T*A*T*G*A*T
    *C*G*T*G*T*A*TATCC
    SEQ ID NO: 972 GGGTATATACTTTTTATTTTTGA
    TAAATATATATATTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*G*T*A*T*A*TACCC
    SEQ ID NO: 973 GGGTATATACTTTTTATTTTTGA
    TAAATGTATATATTTTTATTTT
    TTATA*T*A*C*A*T*A*T*A*T
    *C*G*T*A*T*A*TACCC
    SEQ ID NO: 974 GGGTATATACTTTTTATTTTTGA
    TGATGTATATATTTTTTATTTT
    TATAT*A*T*A*C*A*T*G*A*T
    *C*G*T*A*T*A*TACCC
    SEQ ID NO: 975 GGGTATATACTTTTTATTTTTGA
    TGATATATGTACTTTTTATTTT
    TGTAC*A*T*A*T*A*T*G*A*T
    *C*G*T*A*T*A*TACCC
    SEQ ID NO: 976 GATATATCACTTTTTATTTTTTA
    TAAATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    G*T*G*A*T*A*TATC
    SEQ ID NO: 977 GTATATACATTTTTTATTTTTGA
    TAAATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*C*
    A*T*G*T*A*T*ATAC
    SEQ ID NO: 978 GTATATACATTTTTTATTTTTGA
    TGATGTATATATTTTTATTTTT
    TATA*T*A*C*A*T*G*A*T*C*
    A*T*G*T*A*T*ATAC
    SEQ ID NO: 979 GTATATACATTTTTTATTTTTGA
    TGATATATGTATTTTTATTTTT
    TACA*T*A*T*A*T*G*A*T*C*
    A*T*G*T*A*T*ATAC
    SEQ ID NO: 980 GGATATACACTTTTTATTTTTTA
    TAAATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    G*T*G*T*A*T*ATCC
    SEQ ID NO: 981 GGATATACATTTTTTATTTTTGA
    TAAATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*C*
    A*T*G*T*A*T*ATCC
    SEQ ID NO: 982 GGATATACATTTTTTATTTTTGA
    TAAATGTATATTTTTTATTTTT
    ATAT*A*C*A*T*A*T*A*T*C*
    A*T*G*T*A*T*ATCC
    SEQ ID NO: 983 GGATATACATTTTTTATTTTTGA
    TGATGTATATATTTTTATTTTT
    TATA*T*A*C*A*T*G*A*T*C*
    A*T*G*T*A*T*ATCC
    SEQ ID NO: 984 GGATATACATTTTTTATTTTTGA
    TGATATATGTATTTTTATTTTT
    TACA*T*A*T*A*T*G*A*T*C*
    A*T*G*T*A*T*ATCC
    SEQ ID NO: 985 GGGTATATACTTTTTATTTTTTA
    TAAATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    G*T*A*T*A*T*ACCC
    SEQ ID NO: 986 GGATATACACTTTTTATTTTTGA
    TAAATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*C*
    G*T*G*T*A*T*ATCC
    SEQ ID NO: 987 GGATATACACTTTTTATTTTTGA
    TAAATGTATATTTTTTATTTTT
    ATAT*A*C*A*T*A*T*A*T*C*
    G*T*G*T*A*T*ATCC
    SEQ ID NO: 988 GGATATACACTTTTTATTTTTGA
    TGATGTATATATTTTTATTTTT
    TATA*T*A*C*A*T*G*A*T*C*
    G*T*G*T*A*T*ATCC
    SEQ ID NO: 989 GGATATACACTTTTTATTTTTGA
    TGATATATGTATTTTTATTTTT
    TACA*T*A*T*A*T*G*A*T*C*
    G*T*G*T*A*T*ATCC
    SEQ ID NO: 990 GGGTATATACTTTTTATTTTTGA
    TAAATATATATTTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*C*
    G*T*A*T*A*T*ACCC
    SEQ ID NO: 991 GGGTATATACTTTTTATTTTTGA
    TAAATGTATATTTTTTATTTTT
    ATAT*A*C*A*T*A*T*A*T*C*
    G*T*A*T*A*T*ACCC
    SEQ ID NO: 992 GGGTATATACTTTTTATTTTTGA
    TGATGTATATATTTTTATTTTT
    TATA*T*A*C*A*T*G*A*T*C*
    G*T*A*T*A*T*ACCC
    SEQ ID NO: 993 GGGTATATACTTTTTATTTTTGA
    TGATATATGTATTTTTATTTTT
    TACA*T*A*T*A*T*G*A*T*C*
    G*T*A*T*A*T*ACCC
    SEQ ID NO: 994 GTATATACATTTTTTATTTTTGA
    TAAATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*C*A*T
    *G*T*A*T*A*TAC
    SEQ ID NO: 995 GTATATACATTTTTTATTTTTGA
    TGATGTATATTTTTTATTTTTA
    TAT*A*C*A*T*G*A*T*C*A*T
    *G*T*A*T*A*TAC
    SEQ ID NO: 996 GTATATACATTTTTTATTTTTGA
    TGATATATGTTTTTTATTTTTA
    CAT*A*T*A*T*G*A*T*C*A*T
    *G*T*A*T*A*TAC
    SEQ ID NO: 997 GGATATACATTTTTTATTTTTGA
    TAAATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*C*A*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 998 GGATATACATTTTTTATTTTTGA
    TAAATGTATATTTTTATTTTTT
    ATA*C*A*T*A*T*A*T*C*A*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 999 GGATATACATTTTTTATTTTTGA
    TGATGTATATTTTTTATTTTTA
    TAT*A*C*A*T*G*A*T*C*A*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 1000 GGATATACATTTTTTATTTTTGA
    TGATATATGTTTTTTATTTTTA
    CAT*A*T*A*T*G*A*T*C*A*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 1001 GGATATACACTTTTTATTTTTGA
    TAAATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*C*G*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 1002 GGATATACACTTTTTATTTTTGA
    TAAATGTATATTTTTATTTTTT
    ATA*C*A*T*A*T*A*T*C*G*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 1003 GGATATACACTTTTTATTTTTGA
    TGATGTATATTTTTTATTTTTA
    TAT*A*C*A*T*G*A*T*C*G*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 1004 GGATATACACTTTTTATTTTTGA
    TGATATATGTTTTTTATTTTTA
    CAT*A*T*A*T*G*A*T*C*G*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 1005 GGGTATATACTTTTTATTTTTGA
    TAAATATATATTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*C*G*T
    *A*T*A*T*A*CCC
    SEQ ID NO: 1006 GGGTATATACTTTTTATTTTTGA
    TAAATGTATATTTTTATTTTTT
    ATA*C*A*T*A*T*A*T*C*G*T
    *A*T*A*T*A*CCC
    SEQ ID NO: 1007 GGGTATATACTTTTTATTTTTGA
    TGATGTATATTTTTTATTTTTA
    TAT*A*C*A*T*G*A*T*C*G*T
    *A*T*A*T*A*CCC
    SEQ ID NO: 1008 GGGTATATACTTTTTATTTTTGA
    TGATATATGTTTTTTATTTTTA
    CAT*A*T*A*T*G*A*T*C*G*T
    *A*T*A*T*A*CCC
    SEQ ID NO: 1009 GTACATATATTTTTTTATTTTTG
    ATAAATATATTTTTATTTTTTA
    TA*T*A*T*A*T*C*A*A*T*A*
    T*A*T*G*T*AC
    SEQ ID NO: 1010 GTACATATATTTTTTTATTTTTG
    ATAAATGTATTTTTATTTTTTA
    CA*T*A*T*A*T*C*A*A*T*A*
    T*A*T*G*T*AC
    SEQ ID NO: 1011 GTACATATATTTTTTTATTTTTG
    ATGATGTATTTTTTATTTTTAT
    AC*A*T*G*A*T*C*A*A*T*A*
    T*A*T*G*T*AC
    SEQ ID NO: 1012 GTACATATATTTTTTTATTTTTG
    ATGATATATTTTTTATTTTTAT
    AT*A*T*G*A*T*C*A*A*T*A*
    T*A*T*G*T*AC
    SEQ ID NO: 1013 GGTACATATATTTTTTATTTTTG
    ATAAATATATTTTTATTTTTTA
    TA*T*A*T*A*T*C*A*T*A*T*
    A*T*G*T*A*CC
    SEQ ID NO: 1014 GGTACATATATTTTTTATTTTTG
    ATAAATGTATTTTTATTTTTTA
    CA*T*A*T*A*T*C*A*T*A*T*
    A*T*G*T*A*CC
    SEQ ID NO: 1015 GGTACATATATTTTTTATTTTTG
    ATGATGTATTTTTTATTTTTAT
    AC*A*T*G*A*T*C*A*T*A*T*
    A*T*G*T*A*CC
    SEQ ID NO: 1016 GGTACATATATTTTTTATTTTTG
    ATGATATATTTTTTATTTTTAT
    AT*A*T*G*A*T*C*A*T*A*T*
    A*T*G*T*A*CC
    SEQ ID NO: 1017 CGATCATATATTTTTTTATTTTT
    GATAAATATATTTTTATTTTTT
    ATA*T*A*T*A*T*C*A*A*T*A
    *T*A*T*G*A*TCG
    SEQ ID NO: 1018 CGATCATATATTTTTTTATTTTT
    GATAAATGTATTTTTATTTTTT
    ACA*T*A*T*A*T*C*A*A*T*A
    *T*A*T*G*A*TCG
    SEQ ID NO: 1019 CGATCATATATTTTTTTATTTTT
    GATGATGTATTTTTTATTTTTA
    TAC*A*T*G*A*T*C*A*A*T*A
    *T*A*T*G*A*TCG
    SEQ ID NO: 1020 CGATCATATATTTTTTTATTTTT
    GATGATATATTTTTTATTTTTA
    TAT*A*T*G*A*T*C*A*A*T*A
    *T*A*T*G*A*TCG
    SEQ ID NO: 1021 GTATATACTTTTTATTTTTGATG
    ATGTAAATATATTTTTATTTTT
    TATA*T*A*T*A*C*A*T*G*A*
    T*C*G*T*A*T*ATAC
    SEQ ID NO: 1022 GTATATACTTTTTATTTTTGATG
    ATATAAGTACTTTTTTATTTTT
    AGTA*C*A*T*A*T*A*T*G*A*
    T*C*G*T*A*T*ATAC
    SEQ ID NO: 1023 GGATATACTTTTTATTTTTGATG
    ATGTAAATATATTTTTATTTTT
    TATA*T*A*T*A*C*A*T*G*A*
    T*C*G*T*A*T*ATCC
    SEQ ID NO: 1024 GGATATACTTTTTATTTTTGATG
    ATATAAGTACTTTTTTATTTTT
    AGTA*C*A*T*A*T*A*T*G*A*
    T*C*G*T*A*T*ATCC
    SEQ ID NO: 1025 GGTGATACTTTTTATTTTTGATG
    ATGTAAATATATTTTTATTTTT
    TATA*T*A*T*A*C*A*T*G*A*
    T*C*G*T*A*T*CACC
    SEQ ID NO: 1026 GGTGATACTTTTTATTTTTGATG
    ATATAAGTACTTTTTTATTTTT
    AGTA*C*A*T*A*T*A*T*G*A*
    T*C*G*T*A*T*CACC
    SEQ ID NO: 1027 GGTGATCCTTTTTATTTTTGATG
    ATGTAAATATATTTTTATTTTT
    TATA*T*A*T*A*C*A*T*G*A*
    T*C*G*G*A*T*CACC
    SEQ ID NO: 1028 GGTGATCCTTTTTATTTTTGATG
    ATATAAGTACTTTTTTATTTTT
    AGTA*C*A*T*A*T*A*T*G*A*
    T*C*G*G*A*T*CACC
    SEQ ID NO: 1029 GTATATACATTTTTTATTTTTGA
    TGATGTAAATATATTTTTATTT
    TTTATA*T*A*T*A*C*A*T*G*
    A*T*C*A*T*G*T*ATATAC
    SEQ ID NO: 1030 GTATATACATTTTTTATTTTTGA
    TGATATAAGTACTTTTTTATTT
    TTAGTA*C*A*T*A*T*A*T*G*
    A*T*C*A*T*G*T*ATATAC
    SEQ ID NO: 1031 GGATATACATTTTTTATTTTTGA
    TAAATGTAAATATTTTTTATT
    TTTATAT*A*T*A*C*A*T*A*T
    *A*T*C*A*T*G*T*ATATCC
    SEQ ID NO: 1032 GGATATACATTTTTTATTTTTGA
    TGATGTAAATATATTTTTATT
    TTTTATA*T*A*T*A*C*A*T*G
    *A*T*C*A*T*G*T*ATATCC
    SEQ ID NO: 1033 GGATATACATTTTTTATTTTTGA
    TGATATAAGTACTTTTTTATT
    TTTAGTA*C*A*T*A*T*A*T*G
    *A*T*C*A*T*G*T*ATATCC
    SEQ ID NO: 1034 GGATATACACTTTTTATTTTTGA
    TGATGTAAATATATTTTTATT
    TTTTATA*T*A*T*A*C*A*T*G
    *A*T*C*G*T*G*T*ATATCC
    SEQ ID NO: 1035 GGATATACACTTTTTATTTTTGA
    TGATATAAGTACTTTTTTATT
    TTTAGTA*C*A*T*A*T*A*T*G
    *A*T*C*G*T*G*T*ATATCC
    SEQ ID NO: 1036 GGGTATATACTTTTTATTTTTGA
    TGATGTAAATATATTTTTATT
    TTTTATA*T*A*T*A*C*A*T*G
    *A*T*C*G*T*A*T*ATACCC
    SEQ ID NO: 1037 GGGTATATACTTTTTATTTTTGA
    TGATATAAGTACTTTTTTATT
    TTTAGTA*C*A*T*A*T*A*T*G
    *A*T*C*G*T*A*T*ATACCC
    SEQ ID NO: 1038 GTATATACTTTTTATTTTTGATG
    ATGTAAATATTTTTTATTTTTA
    TAT*A*T*A*C*A*T*G*A*T*C
    *G*T*A*T*A*TAC
    SEQ ID NO: 1039 GTATATACTTTTTATTTTTGATG
    ATATAAGTACTTTTTATTTTTG
    TAC*A*T*A*T*A*T*G*A*T*C
    *G*T*A*T*A*TAC
    SEQ ID NO: 1040 GGATATACTTTTTATTTTTGATG
    ATGTAAATATTTTTTATTTTTA
    TAT*A*T*A*C*A*T*G*A*T*C
    *G*T*A*T*A*TCC
    SEQ ID NO: 1041 GGATATACTTTTTATTTTTGATG
    ATATAAGTACTTTTTATTTTT
    GTAC*A*T*A*T*A*T*G*A*T*
    C*G*T*A*T*A*TCC
    SEQ ID NO: 1042 GGTGATACTTTTTATTTTTGATG
    ATGTAAATATTTTTTATTTTTA
    TAT*A*T*A*C*A*T*G*A*T*C
    *G*T*A*T*C*ACC
    SEQ ID NO: 1043 GGTGATACTTTTTATTTTTGATG
    ATATAAGTACTTTTTATTTTT
    GTAC*A*T*A*T*A*T*G*A*T*
    C*G*T*A*T*C*ACC
    SEQ ID NO: 1044 GGTGATCCTTTTTATTTTTGATG
    ATGTAAATATTTTTTATTTTTA
    TAT*A*T*A*C*A*T*G*A*T*C
    *G*G*A*T*C*ACC
    SEQ ID NO: 1045 GGTGATCCTTTTTATTTTTGATG
    ATATAAGTACTTTTTATTTTTG
    TAC*A*T*A*T*A*T*G*A*T*C
    *G*G*A*T*C*ACC
    SEQ ID NO: 1046 GTATATACATTTTTTATTTTTGA
    TGATGTAAATATTTTTTATTTT
    TATAT*A*T*A*C*A*T*G*A*T
    *C*A*T*G*T*A*TATAC
    SEQ ID NO: 1047 GTATATACATTTTTTATTTTTGA
    TGATATAAGTACTTTTTATTTT
    TGTAC*A*T*A*T*A*T*G*A*T
    *C*A*T*G*T*A*TATAC
    SEQ ID NO: 1048 GGATATACATTTTTTATTTTTGA
    TGATGTAAATATTTTTTATTTT
    TATAT*A*T*A*C*A*T*G*A*T
    *C*A*T*G*T*A*TATCC
    SEQ ID NO: 1049 GGATATACATTTTTTATTTTTGA
    TGATATAAGTACTTTTTATTT
    TTGTAC*A*T*A*T*A*T*G*A*
    T*C*A*T*G*T*A*TATCC
    SEQ ID NO: 1050 GGATATACACTTTTTATTTTTGA
    TGATGTAAATATTTTTTATTT
    TTATAT*A*T*A*C*A*T*G*A*
    T*C*G*T*G*T*A*TATCC
    SEQ ID NO: 1051 GGATATACACTTTTTATTTTTGA
    TGATATAAGTACTTTTTATTT
    TTGTAC*A*T*A*T*A*T*G*A*
    T*C*G*T*G*T*A*TATCC
    SEQ ID NO: 1052 GGGTATATACTTTTTATTTTTGA
    TGATGTAAATATTTTTTATTTT
    TATAT*A*T*A*C*A*T*G*A*T
    *C*G*T*A*T*A*TACCC
    SEQ ID NO: 1053 GGGTATATACTTTTTATTTTTGA
    TGATATAAGTACTTTTTATTT
    TTGTAC*A*T*A*T*A*T*G*A*
    T*C*G*T*A*T*A*TACCC
    SEQ ID NO: 1054 GTATATACATTTTTTATTTTTGA
    TGATATAAGTATTTTTATTTTT
    TACA*T*A*T*A*T*G*A*T*C*
    A*T*G*T*A*T*ATAC
    SEQ ID NO: 1055 GGATATACATTTTTTATTTTTGA
    TAAATGAATATTTTTTATTTTT
    ATAT*A*C*A*T*A*T*A*T*C*
    A*T*G*T*A*T*ATCC
    SEQ ID NO: 1056 GGATATACATTTTTTATTTTTGA
    TGATATAAGTATTTTTATTTTT
    TACA*T*A*T*A*T*G*A*T*C*
    A*T*G*T*A*T*ATCC
    SEQ ID NO: 1057 GGATATACACTTTTTATTTTTGA
    TAAATGAATATTTTTTATTTT
    TATAT*A*C*A*T*A*T*A*T*C
    *G*T*G*T*A*T*ATCC
    SEQ ID NO: 1058 GGATATACACTTTTTATTTTTGA
    TGATATAAGTATTTTTATTTT
    TTACA*T*A*T*A*T*G*A*T*C
    *G*T*G*T*A*T*ATCC
    SEQ ID NO: 1059 GGGTATATACTTTTTATTTTTGA
    TAAATGAATATTTTTTATTTTT
    ATAT*A*C*A*T*A*T*A*T*C*
    G*T*A*T*A*T*ACCC
    SEQ ID NO: 1060 GGGTATATACTTTTTATTTTTGA
    TGATATAAGTATTTTTATTTTT
    TACA*T*A*T*A*T*G*A*T*C*
    G*T*A*T*A*T*ACCC
    SEQ ID NO: 1061 GTATATACATTTTTTATTTTTGA
    TGATGAATATTTTTTATTTTTA
    TAT*A*C*A*T*G*A*T*C*A*T
    *G*T*A*T*A*TAC
    SEQ ID NO: 1062 GGATATACATTTTTTATTTTTGA
    TAAATGAATATTTTTATTTTTT
    ATA*C*A*T*A*T*A*T*C*A*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 1063 GGATATACATTTTTTATTTTTGA
    TGATGAATATTTTTTATTTTTA
    TAT*A*C*A*T*G*A*T*C*A*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 1064 GGATATACATTTTTTATTTTTGA
    TGATAAATGTTTTTTATTTTTA
    CAT*A*T*A*T*G*A*T*C*A*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 1065 GGATATACACTTTTTATTTTTGA
    TGATGAATATTTTTTATTTTT
    ATAT*A*C*A*T*G*A*T*C*G*
    T*G*T*A*T*A*TCC
    SEQ ID NO: 1066 GGGTATATACTTTTTATTTTTGA
    TGATGAATATTTTTTATTTTTA
    TAT*A*C*A*T*G*A*T*C*G*T
    *A*T*A*T*A*CCC
    SEQ ID NO: 1067 GATACTTTTTATTTTTGATGATG
    TAAATATATTTTTATTTTTTAT
    A*T*A*T*A*C*A*T*G*A*T*C
    *G*T*A*T*C
    SEQ ID NO: 1068 GATACTTTTTATTTTTGATGATA
    TAAGTACTTTTTTATTTTTAGT
    A*C*A*T*A*T*A*T*G*A*T*C
    *G*T*A*T*C
    SEQ ID NO: 1069 GACACTTTTTATTTTTGATGATG
    TAAATATATTTTTATTTTTTAT
    A*T*A*T*A*C*A*T*G*A*T*C
    *G*T*G*T*C
    SEQ ID NO: 1070 GACACTTTTTATTTTTGATGATA
    TAAGTACTTTTTTATTTTTAGT
    A*C*A*T*A*T*A*T*G*A*T*C
    *G*T*G*T*C
    SEQ ID NO: 1071 GGATCTTTTTATTTTTGATGATG
    TAAATATATTTTTATTTTTTAT
    A*T*A*T*A*C*A*T*G*A*T*C
    *G*A*T*C*C
    SEQ ID NO: 1072 GGATCTTTTTATTTTTGATGATA
    TAAGTACTTTTTTATTTTTAGT
    A*C*A*T*A*T*A*T*G*A*T*C
    *G*A*T*C*C
    SEQ ID NO: 1073 GCGTCTTTTTATTTTTGATGATG
    TAAATATATTTTTATTTTTTAT
    A*T*A*T*A*C*A*T*G*A*T*C
    *G*A*C*G*C
    SEQ ID NO: 1074 GCGTCTTTTTATTTTTGATGATA
    TAAGTACTTTTTTATTTTTAGT
    A*C*A*T*A*T*A*T*G*A*T*C
    *G*A*C*G*C
    SEQ ID NO: 1075 GTATACTTTTTATTTTTGATGAT
    GTAAATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*G*A*T*C*G
    *T*A*T*A*C
    SEQ ID NO: 1076 GTATACTTTTTATTTTTGATGAT
    ATAAGTACTTTTTATTTTTGTA
    C*A*T*A*T*A*T*G*A*T*C*G
    *T*A*T*A*C
    SEQ ID NO: 1077 GTGATCTTTTTATTTTTGATGAT
    GTAAATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*G*A*T*C*G
    *A*T*C*A*C
    SEQ ID NO: 1078 GTGATCTTTTTATTTTTGATGAT
    ATAAGTACTTTTTATTTTTGTA
    C*A*T*A*T*A*T*G*A*T*C*G
    *A*T*C*A*C
    SEQ ID NO: 1079 GGATACTTTTTATTTTTGATGAT
    GTAAATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*G*A*T*C*G
    *T*A*T*C*C
    SEQ ID NO: 1080 GGATACTTTTTATTTTTGATGAT
    ATAAGTACTTTTTATTTTTGT
    AC*A*T*A*T*A*T*G*A*T*C*
    G*T*A*T*C*C
    SEQ ID NO: 1081 GCGATCTTTTTATTTTTGATGAT
    GTAAATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*G*A*T*C*G
    *A*T*C*G*C
    SEQ ID NO: 1082 GCGATCTTTTTATTTTTGATGAT
    ATAAGTACTTTTTATTTTTGTA
    C*A*T*A*T*A*T*G*A*T*C*G
    *A*T*C*G*C
    SEQ ID NO: 1083 GATATATTTTTTATTTTTGATGA
    TATAAGTATTTTTATTTTTTAC
    A*T*A*T*A*T*G*A*T*C*A*T
    *A*T*A*T*C
    SEQ ID NO: 1084 GATATACTTTTTATTTTTGATGA
    TATAAGTATTTTTATTTTTTAC
    A*T*A*T*A*T*G*A*T*C*G*T
    *A*T*A*T*C
    SEQ ID NO: 1085 GTGATACTTTTTATTTTTGATAA
    ATGAATATTTTTTATTTTTATA
    T*A*C*A*T*A*T*A*T*C*G*T
    *A*T*C*A*C
    SEQ ID NO: 1086 GTGATACTTTTTATTTTTGATGA
    TATAAGTATTTTTATTTTTTAC
    A*T*A*T*A*T*G*A*T*C*G*T
    *A*T*C*A*C
    SEQ ID NO: 1087 GGTATACTTTTTATTTTTGATAA
    ATGAATATTTTTTATTTTTATA
    T*A*C*A*T*A*T*A*T*C*G*T
    *A*T*A*C*C
    SEQ ID NO: 1088 GGTATACTTTTTATTTTTGATGA
    TATAAGTATTTTTATTTTTTAC
    A*T*A*T*A*T*G*A*T*C*G*T
    *A*T*A*C*C
    SEQ ID NO: 1089 GGTGTACTTTTTATTTTTGATAA
    ATGAATATTTTTTATTTTTATA
    T*A*C*A*T*A*T*A*T*C*G*T
    *A*C*A*C*C
    SEQ ID NO: 1090 GGTGTACTTTTTATTTTTGATGA
    TATAAGTATTTTTATTTTTTAC
    A*T*A*T*A*T*G*A*T*C*G*T
    *A*C*A*C*C
    SEQ ID NO: 1091 GTATATACTTTTTATTTTTGATG
    ATGAATATTTTTTATTTTTATA
    T*A*C*A*T*G*A*T*C*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 1092 GTATATACTTTTTATTTTTGATG
    ATAAATGTTTTTTATTTTTACA
    T*A*T*A*T*G*A*T*C*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 1093 GGATATACTTTTTATTTTTGATG
    ATGAATATTTTTTATTTTTATA
    T*A*C*A*T*G*A*T*C*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 1094 GGTGATACTTTTTATTTTTGATG
    ATGAATATTTTTTATTTTTATA
    T*A*C*A*T*G*A*T*C*G*T*A
    *T*C*A*C*C
    SEQ ID NO: 1095 GGTGATACTTTTTATTTTTGATG
    ATAAATGTTTTTTATTTTTAC
    AT*A*T*A*T*G*A*T*C*G*T*
    A*T*C*A*C*C
    SEQ ID NO: 1096 GGTGATCCTTTTTATTTTTGATG
    ATGAATATTTTTTATTTTTATA
    T*A*C*A*T*G*A*T*C*G*G*A
    *T*C*A*C*C
    SEQ ID NO: 1097 GATACTTTTTATTTTTGATATAA
    ATATATAATTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*C
    SEQ ID NO: 1098 GATACTTTTTATTTTTGATAAAT
    GAATATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*A*T*A*T*C
    *G*T*A*T*C
    SEQ ID NO: 1099 GACACTTTTTATTTTTGATATAA
    ATATATAATTTTTATTTTTAT
    AT*A*T*A*T*A*T*A*T*A*T*
    C*G*T*G*T*C
    SEQ ID NO: 1100 GACACTTTTTATTTTTGATAAAT
    GAATATATTTTTTATTTTTAT
    AT*A*T*A*C*A*T*A*T*A*T*
    C*G*T*G*T*C
    SEQ ID NO: 1101 GACACTTTTTATTTTTGATATAA
    GTAAATATTTTTTATTTTTAT
    AT*A*T*A*C*A*T*A*T*A*T*
    C*G*T*G*T*C
    SEQ ID NO: 1102 GGATCTTTTTATTTTTGATATAA
    ATATATAATTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*C
    *G*A*T*C*C
    SEQ ID NO: 1103 GGATCTTTTTATTTTTGATAAAT
    GAATATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*A*T*A*T*C
    *G*A*T*C*C
    SEQ ID NO: 1104 GGATCTTTTTATTTTTGATATAA
    GTAAATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*A*T*A*T*C
    *G*A*T*C*C
    SEQ ID NO: 1105 GCGTCTTTTTATTTTTGATATAA
    ATATATAATTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*A*T*C
    *G*A*C*G*C
    SEQ ID NO: 1106 GCGTCTTTTTATTTTTGATAAAT
    GAATATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*A*T*A*T*C
    *G*A*C*G*C
    SEQ ID NO: 1107 GCGTCTTTTTATTTTTGATATAA
    GTAAATATTTTTTATTTTTATA
    T*A*T*A*C*A*T*A*T*A*T*C
    *G*A*C*G*C
    SEQ ID NO: 1108 GTATATACATTTTTTATTTTTGA
    TATAAATATATAATTTTTATTT
    TTATAT*A*T*A*T*A*T*A*T*
    A*T*C*A*T*G*T*ATATAC
    SEQ ID NO: 1109 GTATATACATTTTTTATTTTTGA
    TAAATGAATATATTTTTTATTT
    TTATAT*A*T*A*C*A*T*A*T*
    A*T*C*A*T*G*T*ATATAC
    SEQ ID NO: 1110 GTATATACATTTTTTATTTTTGA
    TATAAGTAAATATTTTTTATTT
    TTATAT*A*T*A*C*A*T*A*T*
    A*T*C*A*T*G*T*ATATAC
    SEQ ID NO: 1111 GGATATACATTTTTTATTTTTGA
    TATAAATATATAATTTTTATT
    TTTATAT*A*T*A*T*A*T*A*T
    *A*T*C*A*T*G*T*ATATCC
    SEQ ID NO: 1112 GGATATACACTTTTTATTTTTGA
    TATAAATATATAATTTTTATT
    TTTATAT*A*T*A*T*A*T*A*T
    *A*T*C*G*T*G*T*ATATCC
    SEQ ID NO: 1113 GGATATACACTTTTTATTTTTGA
    TAAATGAATATATTTTTTATT
    TTTATAT*A*T*A*C*A*T*A*T
    *A*T*C*G*T*G*T*ATATCC
    SEQ ID NO: 1114 GGATATACACTTTTTATTTTTGA
    TATAAGTAAATATTTTTTATT
    TTTATAT*A*T*A*C*A*T*A*T
    *A*T*C*G*T*G*T*ATATCC
    SEQ ID NO: 1115 GGGTATATACTTTTTATTTTTGA
    TATAAATATATAATTTTTATT
    TTTATAT*A*T*A*T*A*T*A*T
    *A*T*C*G*T*A*T*ATACCC
    SEQ ID NO: 1116 GGGTATATACTTTTTATTTTTGA
    TAAATGAATATATTTTTTATT
    TTTATAT*A*T*A*C*A*T*A*T
    *A*T*C*G*T*A*T*ATACCC
    SEQ ID NO: 1117 GGGTATATACTTTTTATTTTTGA
    TATAAGTAAATATTTTTTATT
    TTTATAT*A*T*A*C*A*T*A*T
    *A*T*C*G*T*A*T*ATACCC
    SEQ ID NO: 1118 GTATACTTTTTATTTTTTATAAA
    TATATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*A*G
    *T*A*T*A*C
    SEQ ID NO: 1119 GTGATCTTTTTATTTTTTATAAA
    TATATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*A*G
    *A*T*C*A*C
    SEQ ID NO: 1120 GTATACTTTTTATTTTTGATATA
    AATATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *T*A*T*A*C
    SEQ ID NO: 1121 GTATACTTTTTATTTTTGATATA
    TAAATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *T*A*T*A*C
    SEQ ID NO: 1122 GTATACTTTTTATTTTTGATAAA
    TGAATATATTTTTATTTTTTAT
    A*T*A*C*A*T*A*T*A*T*C*G
    *T*A*T*A*C
    SEQ ID NO: 1123 GGATACTTTTTATTTTTTATAAA
    TATATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*A*G
    *T*A*T*C*C
    SEQ ID NO: 1124 GTGATCTTTTTATTTTTGATATA
    AATATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *A*T*C*A*C
    SEQ ID NO: 1125 GTGATCTTTTTATTTTTGATATA
    TAAATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *A*T*C*A*C
    SEQ ID NO: 1126 GTGATCTTTTTATTTTTGATAAA
    TGAATATATTTTTATTTTTTAT
    A*T*A*C*A*T*A*T*A*T*C*G
    *A*T*C*A*C
    SEQ ID NO: 1127 GGATACTTTTTATTTTTGATATA
    AATATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *T*A*T*C*C
    SEQ ID NO: 1128 GGATACTTTTTATTTTTGATATA
    TAAATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *T*A*T*C*C
    SEQ ID NO: 1129 GGATACTTTTTATTTTTGATAAA
    TGAATATATTTTTATTTTTTAT
    A*T*A*C*A*T*A*T*A*T*C*G
    *T*A*T*C*C
    SEQ ID NO: 1130 GCGATCTTTTTATTTTTTATAAA
    TATATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*A*G
    *A*T*C*G*C
    SEQ ID NO: 1131 GCGATCTTTTTATTTTTGATATA
    AATATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *A*T*C*G*C
    SEQ ID NO: 1132 GCGATCTTTTTATTTTTGATATA
    TAAATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*A*T*C*G
    *A*T*C*G*C
    SEQ ID NO: 1133 GCGATCTTTTTATTTTTGATAAA
    TGAATATATTTTTATTTTTTAT
    A*T*A*C*A*T*A*T*A*T*C*G
    *A*T*C*G*C
    SEQ ID NO: 1134 GATATATCACTTTTTATTTTTTA
    TAAATATATATTTTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *A*G*T*G*A*T*ATATC
    SEQ ID NO: 1135 GTATATACATTTTTTATTTTTGA
    TATAAATATATTTTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*A*T*G*T*A*TATAC
    SEQ ID NO: 1136 GTATATACATTTTTTATTTTTGA
    TATATAAATATTTTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*A*T*G*T*A*TATAC
    SEQ ID NO: 1137 GGATATACACTTTTTATTTTTTA
    TAAATATATATTTTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *A*G*T*G*T*A*TATCC
    SEQ ID NO: 1138 GGATATACATTTTTTATTTTTGA
    TATAAATATATTTTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*A*T*G*T*A*TATCC
    SEQ ID NO: 1139 GGATATACATTTTTTATTTTTGA
    TATATAAATATTTTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*A*T*G*T*A*TATCC
    SEQ ID NO: 1140 GGATATACATTTTTTATTTTTGA
    TAAATGAATATATTTTTATTT
    TTTATA*T*A*C*A*T*A*T*A*
    T*C*A*T*G*T*A*TATCC
    SEQ ID NO: 1141 GGGTATATACTTTTTATTTTTTA
    TAAATATATATTTTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *A*G*T*A*T*A*TACCC
    SEQ ID NO: 1142 GGATATACACTTTTTATTTTTGA
    TATAAATATATTTTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*G*T*G*T*A*TATCC
    SEQ ID NO: 1143 GGATATACACTTTTTATTTTTGA
    TATATAAATATTTTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*G*T*G*T*A*TATCC
    SEQ ID NO: 1144 GGATATACACTTTTTATTTTTGA
    TAAATGAATATATTTTTATTT
    TTTATA*T*A*C*A*T*A*T*A*
    T*C*G*T*G*T*A*TATCC
    SEQ ID NO: 1145 GGGTATATACTTTTTATTTTTGA
    TATAAATATATTTTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*G*T*A*T*A*TACCC
    SEQ ID NO: 1146 GGGTATATACTTTTTATTTTTGA
    TATATAAATATTTTTTTATTTT
    TTATA*T*A*T*A*T*A*T*A*T
    *C*G*T*A*T*A*TACCC
    SEQ ID NO: 1147 GGGTATATACTTTTTATTTTTGA
    TAAATGAATATATTTTTATTT
    TTTATA*T*A*C*A*T*A*T*A*
    T*C*G*T*A*T*A*TACCC
    SEQ ID NO: 1148 GATATACTTTTTATTTTTGATAA
    ATATATAATTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*C*G*T
    *A*T*A*T*C
    SEQ ID NO: 1149 GTGATACTTTTTATTTTTGATAA
    ATATATAATTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*C*G*T
    *A*T*C*A*C
    SEQ ID NO: 1150 GGTATACTTTTTATTTTTGATAA
    ATATATAATTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*C*G*T
    *A*T*A*C*C
    SEQ ID NO: 1151 GGTGTACTTTTTATTTTTGATAA
    ATATATAATTTTTATTTTTATA
    T*A*T*A*T*A*T*A*T*C*G*T
    *A*C*A*C*C
    SEQ ID NO: 1152 GTATATACATTTTTTATTTTTGA
    TAAATATATAATTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*C*
    A*T*G*T*A*T*ATAC
    SEQ ID NO: 1153 GGATATACATTTTTTATTTTTGA
    TAAATATATAATTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*C*
    A*T*G*T*A*T*ATCC
    SEQ ID NO: 1154 GGATATACACTTTTTATTTTTGA
    TAAATATATAATTTTTATTTT
    TATAT*A*T*A*T*A*T*A*T*C
    *G*T*G*T*A*T*ATCC
    SEQ ID NO: 1155 GGGTATATACTTTTTATTTTTGA
    TAAATATATAATTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*C*
    G*T*A*T*A*T*ACCC
    SEQ ID NO: 1156 GTATATACTTTTTATTTTTGATA
    AATATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*C*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 1157 GTATATACTTTTTATTTTTGATA
    AATGTATTTTTTTATTTTTTAT
    A*C*A*T*A*T*A*T*C*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 1158 GGATATACTTTTTATTTTTGATA
    AATATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*C*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 1159 GGATATACTTTTTATTTTTGATA
    AATGTATTTTTTTATTTTTTAT
    A*C*A*T*A*T*A*T*C*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 1160 GGATATACTTTTTATTTTTGATG
    ATAAATGTTTTTTATTTTTAC
    AT*A*T*A*T*G*A*T*C*G*T*
    A*T*A*T*C*C
    SEQ ID NO: 1161 GGTGATACTTTTTATTTTTGATA
    AATATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*C*G*T*A
    *T*C*A*C*C
    SEQ ID NO: 1162 GGTGATACTTTTTATTTTTGATA
    AATGTATTTTTTTATTTTTTAT
    A*C*A*T*A*T*A*T*C*G*T*A
    *T*C*A*C*C
    SEQ ID NO: 1163 GGTGATCCTTTTTATTTTTGATA
    AATATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*A*T*C*G*G*A
    *T*C*A*C*C
    SEQ ID NO: 1164 GGTGATCCTTTTTATTTTTGATA
    AATGTATTTTTTTATTTTTTAT
    A*C*A*T*A*T*A*T*C*G*G*A
    *T*C*A*C*C
    SEQ ID NO: 1165 GGTGATCCTTTTTATTTTTGATG
    ATAAATGTTTTTTATTTTTACA
    T*A*T*A*T*G*A*T*C*G*G*A
    *T*C*A*C*C
    SEQ ID NO: 1166 GTATATACATTTTTTATTTTTGA
    TAAATATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*C*A*T
    *G*T*A*T*A*TAC
    SEQ ID NO: 1167 GTATATACATTTTTTATTTTTGA
    TAAATGTATTTTTTTATTTTTT
    ATA*C*A*T*A*T*A*T*C*A*T
    *G*T*A*T*A*TAC
    SEQ ID NO: 1168 GTATATACATTTTTTATTTTTGA
    TGATAAATGTTTTTTATTTTTA
    CAT*A*T*A*T*G*A*T*C*A*T
    *G*T*A*T*A*TAC
    SEQ ID NO: 1169 GGATATACATTTTTTATTTTTGA
    TAAATATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*C*A*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 1170 GGATATACACTTTTTATTTTTGA
    TAAATATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*C*G*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 1171 GGATATACACTTTTTATTTTTGA
    TAAATGTATTTTTTTATTTTTT
    ATA*C*A*T*A*T*A*T*C*G*T
    *G*T*A*T*A*TCC
    SEQ ID NO: 1172 GGATATACACTTTTTATTTTTGA
    TGATAAATGTTTTTTATTTTT
    ACAT*A*T*A*T*G*A*T*C*G*
    T*G*T*A*T*A*TCC
    SEQ ID NO: 1173 GGGTATATACTTTTTATTTTTGA
    TAAATATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*C*G*T
    *A*T*A*T*A*CCC
    SEQ ID NO: 1174 GGGTATATACTTTTTATTTTTGA
    TAAATGTATTTTTTTATTTTTT
    ATA*C*A*T*A*T*A*T*C*G*T
    *A*T*A*T*A*CCC
    SEQ ID NO: 1175 GGGTATATACTTTTTATTTTTGA
    TGATAAATGTTTTTTATTTTTA
    CAT*A*T*A*T*G*A*T*C*G*T
    *A*T*A*T*A*CCC
    SEQ ID NO: 1176 GTATATACATTTTTTATTTTTGA
    TAAATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*C*A*T*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 1177 GTATATACATTTTTTATTTTTGA
    TAAATGTTTTTTTATTTTTTAC
    A*T*A*T*A*T*C*A*T*G*T*A
    *T*A*T*A*C
    SEQ ID NO: 1178 GGATATACATTTTTTATTTTTGA
    TAAATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*C*A*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 1179 GGATATACATTTTTTATTTTTGA
    TAAATGTTTTTTTATTTTTTAC
    A*T*A*T*A*T*C*A*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 1180 GGATATACATTTTTTATTTTTGA
    TGATGAATTTTTTATTTTTATA
    C*A*T*G*A*T*C*A*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 1181 GGATATACACTTTTTATTTTTGA
    TAAATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*C*G*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 1182 GGATATACACTTTTTATTTTTGA
    TAAATGTTTTTTTATTTTTTAC
    A*T*A*T*A*T*C*G*T*G*T*A
    *T*A*T*C*C
    SEQ ID NO: 1183 GGGTATATACTTTTTATTTTTGA
    TAAATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*C*G*T*A*T*A
    *T*A*C*C*C
    SEQ ID NO: 1184 GGGTATATACTTTTTATTTTTGA
    TAAATGTTTTTTTATTTTTTAC
    A*T*A*T*A*T*C*G*T*A*T*A
    *T*A*C*C*C
    SEQ ID NO: 1185 GGATGTACACTTTTTATTTTTGA
    TAAATATTTTTTTATTTTTTAT
    A*T*A*T*A*T*C*G*T*G*T*A
    *C*A*T*C*C
    SEQ ID NO: 1186 GGATGTACACTTTTTATTTTTGA
    TAAATGTTTTTTTATTTTTTAC
    A*T*A*T*A*T*C*G*T*G*T*A
    *C*A*T*C*C
    SEQ ID NO: 1187 GTACATATATTTTTTTATTTTTG
    ATAAATATTTTTTTATTTTTTA
    TA*T*A*T*A*T*C*A*A*T*A*
    T*A*T*G*T*AC
    SEQ ID NO: 1188 GTACATATATTTTTTTATTTTTG
    ATAAATGTTTTTTTATTTTTTA
    CA*T*A*T*A*T*C*A*A*T*A*
    T*A*T*G*T*AC
    SEQ ID NO: 1189 GGTACATATATTTTTTATTTTTG
    ATAAATATTTTTTTATTTTTTA
    TA*T*A*T*A*T*C*A*T*A*T*
    A*T*G*T*A*CC
    SEQ ID NO: 1190 GGTACATATATTTTTTATTTTTG
    ATAAATGTTTTTTTATTTTTTA
    CA*T*A*T*A*T*C*A*T*A*T*
    A*T*G*T*A*CC
    SEQ ID NO: 1191 CGATCATATATTTTTTTATTTTT
    GATAAATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*C*A*A*T*A
    *T*A*T*G*A*TCG
    SEQ ID NO: 1192 CGATCATATATTTTTTTATTTTT
    GATAAATGTTTTTTTATTTTTT
    ACA*T*A*T*A*T*C*A*A*T*A
    *T*A*T*G*A*TCG
    SEQ ID NO: 1193 CGATCATATATTTTTTTATTTTT
    GATGATGAATTTTTTATTTTTA
    TAC*A*T*G*A*T*C*A*A*T*A
    *T*A*T*G*A*TCG
    SEQ ID NO: 1194 CGATCATATATTTTTTTATTTTT
    GATGATAAATTTTTTATTTTTA
    TAT*A*T*G*A*T*C*A*A*T*A
    *T*A*T*G*A*TCG
    SEQ ID NO: 1195 GTATATACTTTTTATTTTTGATA
    TAAATATATAATTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*C*G*T*A*T*ATAC
    SEQ ID NO: 1196 GTATATACTTTTTATTTTTGATA
    AATGAATATATTTTTTATTTTT
    ATAT*A*T*A*C*A*T*A*T*A*
    T*C*G*T*A*T*ATAC
    SEQ ID NO: 1197 GGATATACTTTTTATTTTTGATA
    TAAATATATAATTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*C*G*T*A*T*ATCC
    SEQ ID NO: 1198 GGATATACTTTTTATTTTTGATA
    AATGAATATATTTTTTATTTTT
    ATAT*A*T*A*C*A*T*A*T*A*
    T*C*G*T*A*T*ATCC
    SEQ ID NO: 1199 GGTGATACTTTTTATTTTTGATA
    TAAATATATAATTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*C*G*T*A*T*CACC
    SEQ ID NO: 1200 GGTGATACTTTTTATTTTTGATA
    AATGAATATATTTTTTATTTTT
    ATAT*A*T*A*C*A*T*A*T*A*
    T*C*G*T*A*T*CACC
    SEQ ID NO: 1201 GGTGATCCTTTTTATTTTTGATA
    TAAATATATAATTTTTATTTTT
    ATAT*A*T*A*T*A*T*A*T*A*
    T*C*G*G*A*T*CACC
    SEQ ID NO: 1202 GGTGATCCTTTTTATTTTTGATA
    AATGAATATATTTTTTATTTTT
    ATAT*A*T*A*C*A*T*A*T*A*
    T*C*G*G*A*T*CACC
    SEQ ID NO: 1203 GTATATACTTTTTATTTTTGATA
    TAAGTAAATATTTTTTATTTTT
    ATAT*A*T*A*C*A*T*A*T*A*
    T*C*G*T*A*T*ATAC
    SEQ ID NO: 1204 GGATATACTTTTTATTTTTGATA
    TAAGTAAATATTTTTTATTTTT
    ATAT*A*T*A*C*A*T*A*T*A*
    T*C*G*T*A*T*ATCC
    SEQ ID NO: 1205 GGTGATACTTTTTATTTTTGATA
    TAAGTAAATATTTTTTATTTTT
    ATAT*A*T*A*C*A*T*A*T*A*
    T*C*G*T*A*T*CACC
    SEQ ID NO: 1206 GGTGATCCTTTTTATTTTTGATA
    TAAGTAAATATTTTTTATTTTT
    ATAT*A*T*A*C*A*T*A*T*A*
    T*C*G*G*A*T*CACC
    SEQ ID NO: 1207 GTATATACTTTTTATTTTTTATA
    AATATATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*A
    *G*T*A*T*A*TAC
    SEQ ID NO: 1208 GTATATACTTTTTATTTTTGATA
    TAAATATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*A*TAC
    SEQ ID NO: 1209 GTATATACTTTTTATTTTTGATA
    AATGAATATATTTTTATTTTTT
    ATA*T*A*C*A*T*A*T*A*T*C
    *G*T*A*T*A*TAC
    SEQ ID NO: 1210 GGATATACTTTTTATTTTTTATA
    AATATATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*A
    *G*T*A*T*A*TCC
    SEQ ID NO: 1211 GGATATACTTTTTATTTTTGATA
    TAAATATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*A*TCC
    SEQ ID NO: 1212 GGATATACTTTTTATTTTTGATA
    AATGAATATATTTTTATTTTTT
    ATA*T*A*C*A*T*A*T*A*T*C
    *G*T*A*T*A*TCC
    SEQ ID NO: 1213 GGTGATACTTTTTATTTTTTATA
    AATATATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*A
    *G*T*A*T*C*ACC
    SEQ ID NO: 1214 GGTGATACTTTTTATTTTTGATA
    TAAATATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*C*ACC
    SEQ ID NO: 1215 GGTGATACTTTTTATTTTTGATA
    AATGAATATATTTTTATTTTTT
    ATA*T*A*C*A*T*A*T*A*T*C
    *G*T*A*T*C*ACC
    SEQ ID NO: 1216 GGTGATCCTTTTTATTTTTTATA
    AATATATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*A
    *G*G*A*T*C*ACC
    SEQ ID NO: 1217 GGTGATCCTTTTTATTTTTGATA
    TAAATATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*G*A*T*C*ACC
    SEQ ID NO: 1218 GGTGATCCTTTTTATTTTTGATA
    AATGAATATATTTTTATTTTTT
    ATA*T*A*C*A*T*A*T*A*T*C
    *G*G*A*T*C*ACC
    SEQ ID NO: 1219 GTATATACTTTTTATTTTTGATA
    TATAAATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*A*TAC
    SEQ ID NO: 1220 GGATATACTTTTTATTTTTGATA
    TATAAATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*A*TCC
    SEQ ID NO: 1221 GGTGATACTTTTTATTTTTGATA
    TATAAATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*T*A*T*C*ACC
    SEQ ID NO: 1222 GGTGATCCTTTTTATTTTTGATA
    TATAAATATTTTTTTATTTTTT
    ATA*T*A*T*A*T*A*T*A*T*C
    *G*G*A*T*C*ACC
    SEQ ID NO: 1223 GATACAAAAAAAAAAATATATAT
    ATATATATAAAAAAAAAAA
    ATAT*A*T*A*T*A*T*A*T*A*
    T*A*G*T*A*T*C
    SEQ ID NO: 1224 GACACAAAAAAAAAAAGATATAT
    ATATATATAAAAAAAAAAA
    ATAT*A*T*A*T*A*T*A*T*A*
    T*C*G*T*G*T*C
    SEQ ID NO: 1225 GATATACAAAAAAAAAAATATAT
    ATATATATAAAAAAAAAAA
    ATAT*A*T*A*T*A*T*A*T*A*
    G*T*A*T*A*T*C
    SEQ ID NO: 1226 GATATATAAAAAAAAAAAGATAT
    ATGTATATAAAAAAAAAAA
    ATAT*A*C*A*T*A*T*A*T*C*
    A*T*A*T*A*T*C
    SEQ ID NO: 1227 GATATACAAAAAAAAAAAGATAT
    ATATATATAAAAAAAAAAA
    ATAT*A*T*A*T*A*T*A*T*C*
    G*T*A*T*A*T*C
    SEQ ID NO: 1228 GGTATACAAAAAAAAAAATATAT
    ATATATATAAAAAAAAAAA
    ATAT*A*T*A*T*A*T*A*T*A*
    G*T*A*T*A*C*C
    SEQ ID NO: 1229 GATATATCACAAAAAAAAAAATA
    TATATATAAAAAAAAAAAA
    TATA*T*A*T*A*T*A*G*T*G*
    A*T*A*T*A*T*C
    SEQ ID NO: 1230 GTATATACATAAAAAAAAAAAGA
    TATATGTAAAAAAAAAAAA
    TACA*T*A*T*A*T*C*A*T*G*
    T*A*T*A*T*A*C
    SEQ ID NO: 1231 GGATATACATAAAAAAAAAAAGA
    TATATGTAAAAAAAAAAA
    ATACA*T*A*T*A*T*C*A*T*G
    *T*A*T*A*T*C*C
    SEQ ID NO: 1232 GGATATACATAAAAAAAAAAAGA
    TCATGTATAAAAAAAAAAA
    ATAC*A*T*G*A*T*C*A*T*G*
    T*A*T*A*T*C*C
    SEQ ID NO: 1233 GGGTATATACAAAAAAAAAAATA
    TATATATAAAAAAAAAAAA
    TATA*T*A*T*A*T*A*G*T*A*
    T*A*T*A*C*C*C
    SEQ ID NO: 1234 GTATATACAAAAAAAAAAATATA
    TATATATATATAAAAAAAA
    AAAATAT*A*T*A*T*A*T*A*T
    *A*T*A*G*T*A*T*ATAC
    SEQ ID NO: 1235 GTATATACAAAAAAAAAAAGATA
    TATATATATATAAAAAAAA
    AAAATAT*A*T*A*T*A*T*A*T
    *A*T*C*G*T*A*T*ATAC
    SEQ ID NO: 1236 GGATATACAAAAAAAAAAATATA
    TATATATATATAAAAAAAA
    AAAATAT*A*T*A*T*A*T*A*T
    *A*T*A*G*T*A*T*ATCC
    SEQ ID NO: 1237 GGATATACAAAAAAAAAAAGATA
    TATATATATATAAAAAAAA
    AAAATAT*A*T*A*T*A*T*A*T
    *A*T*C*G*T*A*T*ATCC
    SEQ ID NO: 1238 GTATATACAAAAAAAAAAATATA
    TATATATATAAAAAAAAAA
    AATATA*T*A*T*A*T*A*T*A*
    T*A*G*T*A*T*A*TAC
    SEQ ID NO: 1239 GTATATACAAAAAAAAAAAGATA
    TATATATATAAAAAAAAAA
    AATATA*T*A*T*A*T*A*T*A*
    T*C*G*T*A*T*A*TAC
    SEQ ID NO: 1240 GGATATACAAAAAAAAAAATATA
    TATATATATAAAAAAAAAA
    AATATA*T*A*T*A*T*A*T*A*
    T*A*G*T*A*T*A*TCC
    SEQ ID NO: 1241 GGATATACAAAAAAAAAAAGATA
    TATATATATAAAAAAAAAA
    AATATA*T*A*T*A*T*A*T*A*
    T*C*G*T*A*T*A*TCC
    SEQ ID NO: 1242 GATATATCACAAAAAAAAAAATA
    TATATATATAAAAAAAAAA
    AATATA*T*A*T*A*T*A*T*A*
    G*T*G*A*T*A*T*ATC
    SEQ ID NO: 1243 GGATATACATAAAAAAAAAAAGA
    TATATATATAAAAAAAAAA
    AATATA*T*A*T*A*T*A*T*C*
    A*T*G*T*A*T*A*TCC
    SEQ ID NO: 1244 GTACATATATTAAAAAAAAAAAG
    ATATATATAAAAAAAAAAA
    ATATA*T*A*T*A*T*C*A*A*T
    *A*T*A*T*G*T*AC
    SEQ ID NO: 1245 GATGTATATACAAAAAAAAAAAT
    ATATATATAAAAAAAAAAA
    ATATA*T*A*T*A*T*A*G*T*A
    *T*A*T*A*C*A*TC
    SEQ ID NO: 1246 CGATCATATATTAAAAAAAAAAA
    GATATATATAAAAAAAAAA
    AATATA*T*A*T*A*T*C*A*A*
    T*A*T*A*T*G*A*TCG
    SEQ ID NO: 1247 CGATCATATATTAAAAAAAAAAA
    GATATATGTAAAAAAAAAA
    AATACA*T*A*T*A*T*C*A*A*
    T*A*T*A*T*G*A*TCG
    SEQ ID NO: 1248 GATACAAAAAAAAAAATATAAAT
    ATATATATAAAAAAAAAAA
    ATAT*A*T*A*T*A*T*A*T*A*
    T*A*G*T*A*T*C
    SEQ ID NO: 1249 GGATCAAAAAAAAAAATATAAAT
    ATATATATAAAAAAAAAAA
    ATAT*A*T*A*T*A*T*A*T*A*
    T*A*G*A*T*C*C
    SEQ ID NO: 1250 GACACAAAAAAAAAAAGATAAAT
    ATATATATAAAAAAAAAA
    AATAT*A*T*A*T*A*T*A*T*A
    *T*C*G*T*G*T*C
    SEQ ID NO: 1251 GACACAAAAAAAAAAAGATGATG
    TATATATAAAAAAAAAAA
    ATATA*T*A*T*A*C*A*T*G*A
    *T*C*G*T*G*T*C
    SEQ ID NO: 1252 GCGTCAAAAAAAAAAAGATAAAT
    ATATATATAAAAAAAAAAA
    ATAT*A*T*A*T*A*T*A*T*A*
    T*C*G*A*C*G*C
    SEQ ID NO: 1253 GATATACAAAAAAAAAAATATAA
    ATATATATAAAAAAAAAAA
    ATAT*A*T*A*T*A*T*A*T*A*
    G*T*A*T*A*T*C
    SEQ ID NO: 1254 GTATATACATAAAAAAAAAAAGA
    TAAATGTAAAAAAAAAAA
    ATACA*T*A*T*A*T*C*A*T*G
    *T*A*T*A*T*A*C
    SEQ ID NO: 1255 GTATATACATAAAAAAAAAAAGA
    TGATATATAAAAAAAAAAA
    ATAT*A*T*G*A*T*C*A*T*G*
    T*A*T*A*T*A*C
    SEQ ID NO: 1256 GGATATACATAAAAAAAAAAAGA
    TAAATATAAAAAAAAAAA
    ATATA*T*A*T*A*T*C*A*T*G
    *T*A*T*A*T*C*C
    SEQ ID NO: 1257 GGATATACATAAAAAAAAAAAGA
    TGATATATAAAAAAAAAA
    AATAT*A*T*G*A*T*C*A*T*G
    *T*A*T*A*T*C*C
    SEQ ID NO: 1258 GTATATACAAAAAAAAAAATATA
    AATATATATATAAAAAAAA
    AAAATAT*A*T*A*T*A*T*A*T
    *A*T*A*G*T*A*T*ATAC
    SEQ ID NO: 1259 GTATATACAAAAAAAAAAAGATA
    AATATATATATAAAAAAAA
    AAAATAT*A*T*A*T*A*T*A*T
    *A*T*C*G*T*A*T*ATAC
    SEQ ID NO: 1260 GGATATACAAAAAAAAAAATATA
    AATATATATATAAAAAAAA
    AAAATAT*A*T*A*T*A*T*A*T
    *A*T*A*G*T*A*T*ATCC
    SEQ ID NO: 1261 GGATATACAAAAAAAAAAAGATA
    AATATATATATAAAAAAAA
    AAAATAT*A*T*A*T*A*T*A*T
    *A*T*C*G*T*A*T*ATCC
    SEQ ID NO: 1262 GTATATACAAAAAAAAAAAGATA
    AATGTATATAAAAAAAAAA
    AATATA*T*A*C*A*T*A*T*A*
    T*C*G*T*A*T*A*TAC
    SEQ ID NO: 1263 GGATATACAAAAAAAAAAAGATA
    AATGTATATAAAAAAAAA
    AAATATA*T*A*C*A*T*A*T*A
    *T*C*G*T*A*T*A*TCC
    SEQ ID NO: 1264 GGTGATACAAAAAAAAAAAGATG
    ATGTATATATAAAAAAAAA
    AAATAT*A*T*A*C*A*T*G*A*
    T*C*G*T*A*T*C*ACC
    SEQ ID NO: 1265 GATATATCACAAAAAAAAAAATA
    TAAATATATATAAAAAAAA
    AAAATAT*A*T*A*T*A*T*A*T
    *A*G*T*G*A*T*A*TATC
    SEQ ID NO: 1266 GTATATACATAAAAAAAAAAAGA
    TAAATATATAAAAAAAAAA
    AATATA*T*A*T*A*T*A*T*C*
    A*T*G*T*A*T*A*TAC
    SEQ ID NO: 1267 GTATATACATAAAAAAAAAAAGA
    TGATATATGTAAAAAAAAA
    AAACAT*A*T*A*T*G*A*T*C*
    A*T*G*T*A*T*A*TAC
    SEQ ID NO: 1268 GGATATACATAAAAAAAAAAAGA
    TAAATATATAAAAAAAAA
    AAATATA*T*A*T*A*T*A*T*C
    *A*T*G*T*A*T*A*TCC
    SEQ ID NO: 1269 GTACATATATTAAAAAAAAAAAG
    ATAAATATAAAAAAAAAAA
    ATATA*T*A*T*A*T*C*A*A*T
    *A*T*A*T*G*T*AC
    SEQ ID NO: 1270 GTACATATATTAAAAAAAAAAAG
    ATAAATGTAAAAAAAAAAA
    ATACA*T*A*T*A*T*C*A*A*T
    *A*T*A*T*G*T*AC
    SEQ ID NO: 1271 GTACATATATTAAAAAAAAAAAG
    ATGATATATAAAAAAAAAA
    AATAT*A*T*G*A*T*C*A*A*T
    *A*T*A*T*G*T*AC
    SEQ ID NO: 1272 GGATATACATAAAAAAAAAAAGA
    TGATGAATAAAAAAAAAA
    AATAC*A*T*G*A*T*C*A*T*G
    *T*A*T*A*T*C*C
    SEQ ID NO: 1273 GTATATACATAAAAAAAAAAAGA
    TAAATGTTAAAAAAAAAAA
    TACA*T*A*T*A*T*C*A*T*G*
    T*A*T*A*T*A*C
    SEQ ID NO: 1274 GATACAAAAAAAAAAAGATATAA
    ATATATAAAAAAAAAAAA
    AATAT*A*T*A*T*A*T*A*T*A
    *T*C*G*T*A*T*C
    SEQ ID NO: 1275 GATACAAAAAAAAAAAGATGATA
    TAAGTACTAAAAAAAAAA
    AAGTA*C*A*T*A*T*A*T*G*A
    *T*C*G*T*A*T*C
    SEQ ID NO: 1276 GACACAAAAAAAAAAAGATAAAT
    GAATATATAAAAAAAAAA
    AATAT*A*T*A*C*A*T*A*T*A
    *T*C*G*T*G*T*C
    SEQ ID NO: 1277 GGATATACAAAAAAAAAAAGATA
    TAAGTAAATATAAAAAAA
    AAAAATAT*A*T*A*C*A*T*A*
    T*A*T*C*G*T*A*T*ATCC
    SEQ ID NO: 1278 GGATATACAAAAAAAAAAAGATG
    ATATAAGTACTAAAAAAAA
    AAAAGTA*C*A*T*A*T*A*T*G
    *A*T*C*G*T*A*T*ATCC
    SEQ ID NO: 1279 GTATATACAAAAAAAAAAAGATA
    TAAGTAAATATAAAAAAAA
    AAAATAT*A*T*A*C*A*T*A*T
    *A*T*C*G*T*A*T*ATAC
    SEQ ID NO: 1280 GTATATACAAAAAAAAAAAGATG
    ATATAAGTACTAAAAAAAA
    AAAAGTA*C*A*T*A*T*A*T*G
    *A*T*C*G*T*A*T*ATAC
    SEQ ID NO: 1281 GGATATACAAAAAAAAAAAGATA
    AATGAATATAAAAAAAAA
    AAATATA*T*A*C*A*T*A*T*A
    *T*C*G*T*A*T*A*TCC
    SEQ ID NO: 1282 GTATATACAAAAAAAAAAAGATA
    AATGAATATAAAAAAAAA
    AAATATA*T*A*C*A*T*A*T*A
    *T*C*G*T*A*T*A*TAC
    SEQ ID NO: 1283 GTATATACAAAAAAAAAAAGATG
    ATATAAGTACAAAAAAAAA
    AAGTAC*A*T*A*T*A*T*G*A*
    T*C*G*T*A*T*A*TAC
    SEQ ID NO: 1284 GTATATACAAAAAAAAAAATATA
    AATATATATTAAAAAAAAA
    AATATA*T*A*T*A*T*A*T*A*
    T*A*G*T*A*T*A*TAC
    SEQ ID NO: 1285 GTATATACATAAAAAAAAAAAGA
    TGATGTAAATATAAAAAAA
    AAAAATAT*A*T*A*C*A*T*G*
    A*T*C*A*T*G*T*A*TATAC
    SEQ ID NO: 1286 GATATACAAAAAAAAAAAGATAA
    ATATATAAAAAAAAAAAA
    AATAT*A*T*A*T*A*T*A*T*C
    *G*T*A*T*A*T*C
    SEQ ID NO: 1287 GTGATACAAAAAAAAAAAGATAA
    ATATATAAAAAAAAAAAA
    AATAT*A*T*A*T*A*T*A*T*C
    *G*T*A*T*C*A*C
    SEQ ID NO: 1288 GGTATACAAAAAAAAAAAGATAA
    ATATATAAAAAAAAAAAA
    AATAT*A*T*A*T*A*T*A*T*C
    *G*T*A*T*A*C*C
    SEQ ID NO: 1289 GGATATACATAAAAAAAAAAAGA
    TAAATGAATAAAAAAAAA
    AAATATA*C*A*T*A*T*A*T*C
    *A*T*G*T*A*T*A*TCC
    SEQ ID NO: 1290 GTATATACATAAAAAAAAAAAGA
    TAAATGTATTAAAAAAAAA
    AATATA*C*A*T*A*T*A*T*C*
    A*T*G*T*A*T*A*TAC
    SEQ ID NO: 1291 GTATATACATAAAAAAAAAAAGA
    TGATAAATGTAAAAAAAAA
    AAACAT*A*T*A*T*G*A*T*C*
    A*T*G*T*A*T*A*TAC
    SEQ ID NO: 1292 TATATATTATTTTATTTTAATCG
    AGTCTTTTTGACTCGATATAC
    AATATATA
    SEQ ID NO: 1293 GATATATTATTTTATTTTAATCG
    AGTCTTTTTGACTCGATATAC
    AATATATC
    SEQ ID NO: 1294 GATATATCATTTTATTTTAATCG
    AGTCTTTTTGACTCGATATAC
    GATATATC
    SEQ ID NO: 1295 GATATGTCATTTTATTTTAATCG
    AGTCTTTTTGACTCGATATAC
    GACATATC
    SEQ ID NO: 1296 GTGATGTCATTTTATTTTAATCG
    AGTCTTTTTGACTCGATATAC
    GACATCAC
    SEQ ID NO: 1297 TATATATTATTTTATTTTATGCG
    AGTCTTTTTGACTCGCAGCCC
    AATATATA
    SEQ ID NO: 1298 GATATATTATTTTATTTTATGCG
    AGTCTTTTTGACTCGCAGCCC
    AATATATC
    SEQ ID NO: 1299 GATATATCATTTTATTTTATGCG
    AGTCTTTTTGACTCGCAGCCC
    GATATATC
    SEQ ID NO: 1300 GATATGTCATTTTATTTTATGCG
    AGTCTTTTTGACTCGCAGCCC
    GACATATC
    SEQ ID NO: 1301 GTGATGTCATTTTATTTTATGCG
    AGTCTTTTTGACTCGCAGCCC
    GACATCAC
    SEQ ID NO: 1302 TATATATTATTTTATTTTAGTAT
    ATCGGACTCGATATACAATAT
    ATA
    SEQ ID NO: 1303 GATATATTATTTTATTTTAGTAT
    ATCGGACTCGATATACAATAT
    ATC
    SEQ ID NO: 1304 GATATATCATTTTATTTTAGTAT
    ATCGGACTCGATATACGATAT
    ATC
    SEQ ID NO: 1305 GATATGTCATTTTATTTTAGTAT
    ATCGGACTCGATATACGACAT
    ATC
    SEQ ID NO: 1306 GTGATGTCATTTTATTTTAGTAT
    ATCGGACTCGATATACGACAT
    CAC
    SEQ ID NO: 1307 TATATATTATTTTATTTTAGGGC
    TGCGGACTCGCAGCCCAATAT
    ATA
    SEQ ID NO: 1308 GATATATTATTTTATTTTAGGGC
    TGCGGACTCGCAGCCCAATA
    TATC
    SEQ ID NO: 1309 GATATATCATTTTATTTTAGGGC
    TGCGGACTCGCAGCCCGATA
    TATC
    SEQ ID NO: 1310 GATATGTCATTTTATTTTAGGGC
    TGCGGACTCGCAGCCCGACA
    TATC
    SEQ ID NO: 1311 GTGATGTCATTTTATTTTAGGGC
    TGCGGACTCGCAGCCCGACA
    TCAC
    SEQ ID NO: 1312 TATATATATTATTACTATATGGA
    CTCGCATATAGATATATA
    SEQ ID NO: 1313 GATATATATTATTACTATATGGA
    CTCGCATATAGATATATC
    SEQ ID NO: 1314 GATATACATTATTACTATATGGA
    CTCGCATATAGGTATATC
    SEQ ID NO: 1315 GATATCCATTATTACTATATGGA
    CTCGCATATAGGGATATC
    SEQ ID NO: 1316 GTGATACATTATTACTATATGGA
    CTCGCATATAGGTATCAC
    SEQ ID NO: 1317 TATATATTTTATTTCGGGCTGGA
    CTCGCAGCCCGATATATA
    SEQ ID NO: 1318 GATATATATTATTACGGGCTGGA
    CTCGCAGCCCGATATATC
    SEQ ID NO: 1319 GATATACATTATTACGGGCTGGA
    CTCGCAGCCCGGTATATC
    SEQ ID NO: 1320 GATATCCATTATTACGGGCTGGA
    CTCGCAGCCCGGGATATC
    SEQ ID NO: 1321 GTGATACATTATTACGGGCTGGA
    CTCGCAGCCCGGTATCAC
    SEQ ID NO: 1322 TATATATTTTATTTCTATATGTT
    TATTTCGAGTCTTTTGACTCGC
    ATATAGATATATA
    SEQ ID NO: 1323 GATATATATTATTACTATATGAT
    TATTACGAGTCTTTTGACTCG
    CATATAGATATATC
    SEQ ID NO: 1324 GATATACATTATTACTATATGAT
    TATTACGAGTCTTTTGACTCG
    CATATAGGTATATC
    SEQ ID NO: 1325 GATATCCATTATTACTATATGAT
    TATTACGAGTCTTTTGACTCG
    CATATAGGGATATC
    SEQ ID NO: 1326 GTGATACATTATTACTATATGAT
    TATTACGAGTCTTTTGACTCG
    CATATAGGTATCAC
    SEQ ID NO: 1327 TATATATATTATTACGGGCTGAT
    TATTACGAGTCTTTTGACTCG
    CAGCCCGATATATA
    SEQ ID NO: 1328 GATATATATTATTACGGGCTGAT
    TATTACGAGTCTTTTGACTCG
    CAGCCCGATATATC
    SEQ ID NO: 1329 GATATACATTATTACGGGCTGAT
    TATTACGAGTCTTTTGACTC
    GCAGCCCGGTATATC
    SEQ ID NO: 1330 GATATCCATTATTACGGGCTGAT
    TATTACGAGTCTTTTGACTCG
    CAGCCCGGGATATC
    SEQ ID NO: 1331 GTGATACATTATTACGGGCTGAT
    TATTACGAGTCTTTTGACTC
    GCAGCCCGGTATCAC
    SEQ ID NO: 1332 TATATATTTATTTCATATCGACT
    CGCAGATATGTATATA
    SEQ ID NO: 1333 GATATCATTATTACATATCGACT
    CGCAGATATGGATATC
    SEQ ID NO: 1334 GTGATCATTATTACATATCGACT
    CGCAGATATGGATCAC
    SEQ ID NO: 1335 GTGTGCATTATTACATATCGACT
    CGCAGATATGGCACAC
    SEQ ID NO: 1336 GATATCATTATTACCGGGCGACT
    CGCAGCCCGGGATATC
    SEQ ID NO: 1337 GTGATCATTATTACCGGGCGACT
    CGCAGCCCGGGATCAC
    SEQ ID NO: 1338 GTGTGCATTATTACCGGGCGACT
    CGCAGCCCGGGCACAC
    SEQ ID NO: 1339 TATATATTTATTTCATATCTTTA
    TTTTGCGAGTCTTTTGACTCGC
    AGATATGTATATA
    SEQ ID NO: 1340 GATATCATTATTACATATCATTA
    TTATGCGAGTCTTTTGACTCG
    CAGATATGGATATC
    SEQ ID NO: 1341 GTGATCATTATTACATATCATTA
    TTATGCGAGTCTTTTGACTCG
    CAGATATGGATCAC
    SEQ ID NO: 1342 GTGTGCATTATTACATATCATTA
    TTATGCGAGTCTTTTGACTCG
    CAGATATGGCACAC
    SEQ ID NO: 1343 GATATCATTATTACCGGGCATTA
    TTATGCGAGTCTTTTGACTCG
    CAGCCCGGGATATC
    SEQ ID NO: 1344 GTGATCATTATTACCGGGCATTA
    TTATGCGAGTCTTTTGACTCG
    CAGCCCGGGATCAC
    SEQ ID NO: 1345 GTGTGCATTATTACCGGGCATTA
    TTATGCGAGTCTTTTGACTCG
    CAGCCCGGGCACAC
    SEQ ID NO: 1346 GTATGATTATTACACAGGACTCG
    CAGCCTGTGCATAC
    SEQ ID NO: 1347 GTGTGATTATTACACAGGACTCG
    CAGCCTGTGCACAC
    SEQ ID NO: 1348 GTATGATTATTACCCGGGACTCG
    CAGCCCGGGCATAC
    SEQ ID NO: 1349 GTGTGATTATTACCCGGGACTCG
    CAGCCCGGGCACAC
    SEQ ID NO: 1350 GTATGATTATTACACAGATTATT
    AGCTGCATTATTAGAGTCTTT
    TGACTCGCAGCCTGTGCATAC
    SEQ ID NO: 1351 GTGTGATTATTACACAGATTATT
    AGCTGCATTATTAGAGTCTTT
    TGACTCGCAGCCTGTGCACAC
    SEQ ID NO: 1352 TATATATTATTACCCGGATTATT
    AGCTGCATTATTAGAGTCTTT
    TGACTCGCAGCCCGGGATATA
    SEQ ID NO: 1353 GATATATTATTACCCGGATTATT
    AGCTGCATTATTAGAGTCTTT
    TGACTCGCAGCCCGGGATATC
    SEQ ID NO: 1354 GTATGATTATTACCCGGATTATT
    AGCTGCATTATTAGAGTCTTT
    TGACTCGCAGCCCGGGCATAC
    SEQ ID NO: 1355 GTGTGATTATTACCCGGATTATT
    AGCTGCATTATTAGAGTCTTT
    TGACTCGCAGCCCGGGCACAC
    SEQ ID NO: 1356 GACTCGATATACAATATATAGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCTATATAATTATTATTGT
    ATAT
    SEQ ID NO: 1357 GACTCGATATACAATATATCGCG
    CGCGCAATAAGCGCGCATTA
    TTAGCGATATAATTATTATTGTA
    TAT
    SEQ ID NO: 1358 GACTCGATATACGATATATCGCG
    CGCGCAATAAGCGCGCATTA
    TTAGCGATATAATTATTATCGTA
    TAT
    SEQ ID NO: 1359 GACTCGATATACGACATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATGATTATTATCGT
    ATAT
    SEQ ID NO: 1360 GACTCGATATACGACATCACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGATGATTATTATCGT
    ATAT
    SEQ ID NO: 1361 GACTCGCAGCCCAATATATAGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCTATATAATTATTATTGG
    GCTG
    SEQ ID NO: 1362 GACTCGCAGCCCAATATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATAATTATTATTGG
    GCTG
    SEQ ID NO: 1363 GACTCGCAGCCCGATATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATAATTATTATCGG
    GCTG
    SEQ ID NO: 1364 GACTCGCAGCCCGACATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATGATTATTATCGG
    GCTG
    SEQ ID NO: 1365 GACTCGCAGCCCGACATCACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGATGATTATTATCGG
    GCTG
    SEQ ID NO: 1366 GACTCGATATACAATATATAGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCTATATAATTATTATTGT
    ATATTATTAATCGAGTC
    SEQ ID NO: 1367 GACTCGATATACAATATATCGCG
    CGCGCAATAAGCGCGCATTA
    TTAGCGATATAATTATTATTGTA
    TATTATTAATCGAGTC
    SEQ ID NO: 1368 GACTCGATATACGATATATCGCG
    CGCGCAATAAGCGCGCATTA
    TTAGCGATATAATTATTATCGTA
    TATTATTAATCGAGTC
    SEQ ID NO: 1369 GACTCGATATACGACATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATGATTATTATCGT
    ATATTATTAATCGAGTC
    SEQ ID NO: 1370 GACTCGATATACGACATCACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGATGATTATTATCGT
    ATATTATTAATCGAGTC
    SEQ ID NO: 1371 GACTCGCAGCCCAATATATAGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCTATATAATTATTATTGG
    GCATTATTATGCGAGTC
    SEQ ID NO: 1372 GACTCGCAGCCCAATATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATAATTATTATTGG
    GCATTATTATGCGAGTC
    SEQ ID NO: 1373 GACTCGCAGCCCGATATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATAATTATTATCGG
    GCATTATTATGCGAGTC
    SEQ ID NO: 1374 GACTCGCAGCCCGACATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATGATTATTATCGG
    GCATTATTATGCGAGTC
    SEQ ID NO: 1375 GACTCGCAGCCCGACATCACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGATGATTATTATCGG
    GCATTATTATGCGAGTC
    SEQ ID NO: 1376 GACTCGCATATAGATATATAGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCTATATATTATTAATCTA
    TA
    SEQ ID NO: 1377 GACTCGCATATAGATATATCGCG
    CGCGCAATAAGCGCGCATTA
    TTAGCGATATATTATTAATCTAT
    A
    SEQ ID NO: 1378 GACTCGCATATAGGTATATCGCG
    CGCGCAATAAGCGCGCATTA
    TTAGCGATATATTATTAACCTAT
    A
    SEQ ID NO: 1379 GACTCGCATATAGGGATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATATTATTACCCTA
    TA
    SEQ ID NO: 1380 GACTCGCATATAGGTATCACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGATATTATTAACCTA
    TA
    SEQ ID NO: 1381 GACTCGCAGCCCGATATATAGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCTATATATTATTAATCGG
    GC
    SEQ ID NO: 1382 GACTCGCAGCCCGATATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATATTATTAATCGG
    GC
    SEQ ID NO: 1383 GACTCGCAGCCCGGTATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATATTATTAACCGG
    GC
    SEQ ID NO: 1384 GACTCGCAGCCCGGGATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATATTATTACCCGG
    GC
    SEQ ID NO: 1385 GACTCGCAGCCCGGTATCACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGATATTATTAACCGG
    GC
    SEQ ID NO: 1386 GACTCGCATATAGATATATAGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCTATATATTATTAATCTA
    TAATTATTATGCGAGT
    SEQ ID NO: 1387 GACTCGCATATAGATATATCGCG
    CGCGCAATAAGCGCGCATTA
    TTAGCGATATATTATTAATCTAT
    AATTATTATGCGAGT
    SEQ ID NO: 1388 GACTCGCATATAGGTATATCGCG
    CGCGCAATAAGCGCGCATTA
    TTAGCGATATATTATTAACCTAT
    AATTATTATGCGAGT
    SEQ ID NO: 1389 GACTCGCATATAGGGATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATATTATTACCCTA
    TAATTATTATGCGAGT
    SEQ ID NO: 1390 GACTCGCATATAGGTATCACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGATATTATTAACCTA
    TAATTATTATGCGAGT
    SEQ ID NO: 1391 GACTCGCAGCCCGATATATAGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCTATATATTATTAATCGG
    GCATTATTATGCGAGT
    SEQ ID NO: 1392 GACTCGCAGCCCGATATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATATTATTAATCGG
    GCATTATTATGCGAGT
    SEQ ID NO: 1393 GACTCGCAGCCCGGTATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATATTATTAACCGG
    GCATTATTATGCGAGT
    SEQ ID NO: 1394 GACTCGCAGCCCGGGATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATATTATTACCCGG
    GCATTATTATGCGAGT
    SEQ ID NO: 1395 GACTCGCAGCCCGGTATCACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGATATTATTAACCGG
    GCATTATTATGCGAGT
    SEQ ID NO: 1396 GACTCGCAGATATGTATATAGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCTATAATTATTATACATA
    SEQ ID NO: 1397 GACTCGCAGATATGTATATCGCG
    CGCGCAATAAGCGCGCATTA
    TTAGCGATAATTATTATACATA
    SEQ ID NO: 1398 GACTCGCAGATATGGATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATAATTATTATCCATA
    SEQ ID NO: 1399 GACTCGCAGATATGGATCACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGAATTATTATCCATA
    SEQ ID NO: 1400 GACTCGCAGATATGGCACACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGTATTATTAGCCATA
    SEQ ID NO: 1401 GACTCGCAGCCCGGTATATAGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCTATAATTATTATACCGG
    SEQ ID NO: 1402 GACTCGCAGCCCGGTATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATAATTATTATACCGG
    SEQ ID NO: 1403 GACTCGCAGCCCGGGATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATAATTATTATCCCGG
    SEQ ID NO: 1404 GACTCGCAGCCCGGGATCACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGAATTATTATCCCGG
    SEQ ID NO: 1405 GACTCGCAGCCCGGGCACACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGTATTATTAGCCCGG
    SEQ ID NO: 1406 GACTCGCAGCCTGTGATATAGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCTATATTATTAATCAC
    SEQ ID NO: 1407 GACTCGCAGCCTGTGATATCGCG
    CGCGCAATAAGCGCGCATTA
    TTAGCGATATTATTAATCAC
    SEQ ID NO: 1408 GACTCGCAGCCTGTGCATACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTAATTATTATGCAC
    SEQ ID NO: 1409 GACTCGCAGCCTGTGCACACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGATTATTATGCAC
    SEQ ID NO: 1410 GACTCGCAGCCCGGGATATAGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCTATATTATTAATCCC
    SEQ ID NO: 1411 GACTCGCAGCCCGGGATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATTATTAATCCC
    SEQ ID NO: 1412 GACTCGCAGCCCGGGCATACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTAATTATTATGCCC
    SEQ ID NO: 1413 GACTCGCAGCCCGGGCACACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGATTATTATGCCC
    SEQ ID NO: 1414 GACTCGCAGCCTGTGATATAGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCTATATTATTAATCACAT
    TATTAAGGCTATTATTAGCG
    AG
    SEQ ID NO: 1415 GACTCGCAGCCTGTGATATCGCG
    CGCGCAATAAGCGCGCATTA
    TTAGCGATATTATTAATCACATT
    ATTAAGGCTATTATTAGCGA
    G
    SEQ ID NO: 1416 GACTCGCAGCCTGTGCATACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTAATTATTATGCACAT
    TATTAAGGCTATTATTAGCG
    AG
    SEQ ID NO: 1417 GACTCGCAGCCTGTGCACACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGATTATTATGCACAT
    TATTAAGGCTATTATTAGCG
    AG
    SEQ ID NO: 1418 GACTCGCAGCCCGGGATATAGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCTATATTATTAATCCCAT
    TATTAGGGCTATTATTAGCGA
    G
    SEQ ID NO: 1419 GACTCGCAGCCCGGGATATCGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGATATTATTAATCCCAT
    TATTAGGGCTATTATTAGCG
    AG
    SEQ ID NO: 1420 GACTCGCAGCCCGGGCATACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTAATTATTATGCCCAT
    TATTAGGGCTATTATTAGCG
    AG
    SEQ ID NO: 1421 GACTCGCAGCCCGGGCACACGCG
    CGCGCAATAAGCGCGCATT
    ATTAGCGTGATTATTATGCCCAT
    TATTAGGGCTATTATTAGCG
    AG
    *indicate the bonds that are phosphorothioate (PS) modified. These sequences may include nuclease resistant modifications such as PS modifications in all bases except the Loop sequences, where Loop sequences are the unhybridized bases. The number of modifications, e.g., PS, can vary from “0” to “max = total number of bases − number of bases in loops.
  • In any of the foregoing embodiments, the blocked nucleic acid molecules of the disclosure may further contain a reporter moiety attached thereto such that cleavage of the blocked nucleic acid releases a signal from the reporter moiety. (See FIG. 4 , mechanisms depicted at center and bottom.)
  • Also, in any of the foregoing embodiments, the blocked nucleic acid molecule may be a modified or non-naturally occurring nucleic acid molecule. In some embodiments, the blocked nucleic acid molecules of the disclosure may further contain a locked nucleic acid (LNA), a bridged nucleic acid (BNA), and/or a peptide nucleic acid (PNA). The blocked nucleic acid molecule may contain a modified or non-naturally occurring nucleoside, nucleotide, and/or internucleoside linkage, such as a 2′-O-methyl (2′—O-Me) modified nucleoside, a 2′-fluoro (2′-F) modified nucleoside, and a phosphorothioate (PS) bond, any other nucleic acid molecule modifications described above, and any combination thereof.
  • FIG. 2G at left shows an exemplary single-strand blocked nucleic acid molecule and how the configuration of this blocked nucleic acid molecule is able to block R-loop formation with an RNP complex, thereby blocking activation of the trans-cleavage activity of RNP2. The single-strand blocked nucleic acid molecule is self-hybridized and comprises: a target strand (TS) sequence complementary to the gRNA (e.g., crRNA) of RNP2; a cleavable non-target strand (NTS) sequence that is partially hybridized (e.g., it contains secondary loop structures) to the TS sequence; and a protospacer adjacent motif (PAM) sequence (e.g., 5′ NAAA 3′) that is specifically located at the 3′ end of the TS sequence. An RNP complex with 3′→+5′ diffusion (e.g., 1D diffusion) initiates R-loop formation upon PAM recognition. R-loop formation is completed upon a stabilizing ≥17 base hybridization of the TS to the gRNA of RNP2; however, because of the orientation of the PAM sequence relative to the secondary loop structure(s), the blocked nucleic acid molecule sterically prevents the TS sequence from hybridizing with the gRNA of RNP2, thereby blocking the stable R-loop formation required for the cascade reaction.
  • FIG. 2G at right shows the blocked nucleic acid molecule being unblocked via trans-cleavage (e.g., by RNP1) and subsequent dehybridization of the NTS's secondary loop structures, followed by binding of the TS sequence to the gRNA of RNP2, thereby completing stable R-loop formation and activating the trans-cleavage activity of the RNP2 complex.
  • In some embodiments, the blocked nucleic acid molecules provided herein are circular DNAs, RNAs or chimeric (DNA-RNA) molecules (FIG. 2H), and the blocked nucleic acid molecules may include different base compositions depending on the Cas enzyme used for RNP1 and RNP2. For the circular design of blocked nucleic acid molecules, the 5′ and 3′ ends are covalently linked together. This configuration makes internalization of the blocked nucleic acid molecule into RNP2—and subsequent RNP2 activation—sterically unfavorable, thereby blocking the progression of a CRISPR Cascade reaction. Thus, RNP2 activation (e.g., trans-cleavage activity) happens after cleavage of a portion of the blocked nucleic acid molecule followed by linearization and internalization of unblocked nucleic acid molecule into RNP2.
  • In some embodiments, the blocked nucleic acid molecules are topologically circular molecules with 5′ and 3′ portions hybridized to each other using DNA, RNA, LNA, BNA, or PNA bases which have a very high melting temperature (Tm). The high Tm causes the structure to effectively behave as a circular molecule even though the 5′ and 3′ ends are not covalently linked. The 5′ and 3′ ends can also have base non-naturally occurring modifications such as phosphorothioate bonds to provide increased stability.
  • In embodiments where the blocked nucleic acid molecules are circularized (e.g., circular or topologically circular), as illustrated in FIG. 2H, each blocked nucleic acid molecule includes a first region, which is a target sequence specific to the gRNA of RNP2, and a second region, which is a sequence that can be cleaved by nuclease enzymes of activated RNP1 and/or RNP2. The first region may include a nuclease-resistant nucleic acid sequence such as, for example, a phosphorothioate group or other non-naturally occurring nuclease-resistant base modifications, for protection from trans-endonuclease activity. In some embodiments, when the Cas enzyme in both RNP1 and RNP2 is Cas12a, the first region of the blocked nucleic acid molecule includes a nuclease-resistant DNA sequence, and the second region of the blocked nucleic acid molecule includes a cleavable DNA sequence. In other embodiments, when the Cas enzyme in RNP1 is Cas12a and the Cas enzyme in RNP2 is Cas13a, the first region of the blocked nucleic acid molecule includes a nuclease-resistant RNA sequence, and the second region of the blocked nucleic acid molecule includes a cleavable DNA sequence and a cleavable RNA sequence. In yet other embodiments, when the Cas enzyme in RNP1 is Cas13a and the Cas enzyme in RNP2 is Cas12a, the first region of the blocked nucleic acid molecule includes a nuclease-resistant DNA sequence, and the second region of the blocked nucleic acid molecule includes a cleavable DNA sequence and a cleavable RNA sequence. In some other embodiments, when the Cas enzyme in both RNP1 and RNP2 is Cas13a, the first region of the blocked nucleic acid molecule includes a nuclease-resistant RNA sequence, and the second region of the blocked nucleic acid molecule includes a cleavable RNA sequence.
  • The Cascade Assay Employing Blocked Primer Molecules
  • The blocked nucleic acids described above may also be blocked primer molecules. Blocked primer molecules include a sequence complementary to a primer binding domain (PBD) on a template molecule (see description below in reference to FIGS. 3A and 3B) and can have the same general structures as the blocked nucleic acid molecules described above. A PBD serves as a nucleotide sequence for primer hybridization followed by primer polymerization by a polymerase. In any of Formulas I, II, or III described above, the blocked primer nucleic acid molecule may include a sequence complementary to the PBD on the 5′ end of T. The unblocked primer nucleic acid molecule can bind to a template molecule at the PBD and copy the template molecule via polymerization by a polymerase.
  • Other specific embodiments of the cascade assay that utilize blocked primer molecules and are depicted in FIGS. 3A and 3B. In the embodiments using blocked nucleic acid molecules described above, activation of RNP1 and trans-cleavage of the blocked nucleic acid molecules were used to activate RNP2—that is, the unblocked nucleic acid molecules are a target sequence for the gRNA in RNP2. In contrast, in the embodiments using blocked primers, activation of RNP1 and trans-cleavage unblocks a blocked primer molecule that is then used to prime a template molecule for extension by a polymerase, thereby synthesizing activating molecules that are the target sequence for the gRNA in RNP2.
  • FIG. 3A is a diagram showing the sequence of steps in an exemplary cascade assay involving circular blocked primer molecules and linear template molecules. At left of FIG. 3A is a cascade assay reaction mix comprising 1) RNP1s (301) (only one RNP1 is shown); 2) RNP2s (302); 3) linear template molecules (330) (which is the non-target strand); 4) a circular blocked primer molecule (334) (i.e., a high Kd molecule); and 5) a polymerase (338), such as a D29 polymerase. The linear template molecule (330) (non-target strand) comprises a PAM sequence (331), a primer binding domain (PBD) (332) and, optionally, a nucleoside modification (333) to protect the linear template molecule (330) from 3′→5′ exonuclease activity. Blocked primer molecule (334) comprises a cleavable region (335) and a complement to the PBD (332) on the linear template molecule (330).
  • Upon addition of a sample comprising a target nucleic acid of interest (304) (capable of complexing with the gRNA in RNP1 (301)), the target nucleic acid of interest (304) combines with and activates RNP1 (305) but does not interact with or activate RNP2 (302). Once activated, RNP1 cuts the target nucleic acid of interest (304) via sequence specific cis-cleavage, which activates non-specific trans-cleavage of other nucleic acids present in the reaction mix, including at least one of the blocked primer molecules (334). The circular blocked primer molecule (334) (i.e., a high Kd molecule, where high Kd relates to binding to RNP2) upon cleavage becomes an unblocked linear primer molecule (344) (a low Kd molecule, where low Kd related to binding to RNP2), which has a region (336) complementary to the PBD (332) on the linear template molecule (330) and can bind to the linear template molecule (330).
  • Once the unblocked linear primer molecule (344) and the linear template molecule (330) are hybridized (i.e., hybridized at the PBD (332) of the linear template molecule (330) and the PBD complement (336) on the unblocked linear primer molecule (344)), 3′→5′ exonuclease activity of the polymerase (338) removes the unhybridized single-stranded DNA at the end of the unblocked primer molecule (344) and the polymerase (338) can copy the linear template molecule (330) to produce a synthesized activating molecule (346) (a complement of the non-target strand, which is a target strand). The synthesized activating molecule (346) is capable of activating RNP2 (302308). As described above, because the nucleic acid-guided nuclease in the RNP2 (308) complex exhibits (that is, possesses) both cis- and trans-cleavage activity, more blocked primer molecules (334) become unblocked primer molecules (344) triggering activation of more RNP2s (308) and more trans-cleavage activity in a cascade. As stated above in relation to blocked and unblocked nucleic acid molecules (both linear and circular), the unblocked primer molecule has a higher binding affinity for the gRNA in RNP2 than does the blocked primer molecule, although there may be some “leakiness” where some blocked primer molecules are able to interact with the gRNA in RNP2. However, an unblocked primer molecule has a substantially higher likelihood than a blocked primer molecule to hybridize with the gRNA of RNP2.
  • FIG. 3A at bottom depicts the concurrent activation of reporter moieties. Intact reporter moieties (309) comprise a quencher (310) and a fluorophore (311). As described above in relation to FIG. 1B, the reporter moieties are also subject to trans-cleavage by activated RNP1 (305) and RNP2 (308). The intact reporter moieties (309) become activated reporter moieties (312) when the quencher (310) is separated from the fluorophore (311), and the fluorophore emits a fluorescent signal (313). Signal strength increases rapidly as more blocked primer molecules (334) become unblocked primer molecules (344) generating synthesized activating molecules (346) and triggering activation of more RNP2 (308) complexes and more trans-cleavage activity of the reporter moieties (309). Again, here the reporter moieties are shown as separate molecules from the blocked nucleic acid molecules, but other configurations may be employed and are discussed in relation to FIG. 4 . Also, as with the cascade assay embodiment utilizing blocked nucleic acid molecules that are not blocked primers, with the exception of the gRNA in RNP1, the cascade assay components stay the same no matter what target nucleic acid(s) of interest are being detected.
  • FIG. 3B is a diagram showing the sequence of steps in an exemplary cascade assay involving blocked primer molecules and circular template molecules. The cascade assay of FIG. 3B differs from that depicted in FIG. 3A by the configuration of the template molecule. Where the template molecule in FIG. 3A was linear, in FIG. 3B the template molecule is circular. At left of FIG. 3B is a cascade assay reaction mix comprising 1) RNP1s (301) (only one RNP1 is shown); 2) RNP2s (302); 3) a circular template molecule (352) (non-target strand); 4) a circular blocked primer molecule (334); and 5) a polymerase (338), such as a D29 polymerase. The circular template molecule (352) (non-target strand) comprises a PAM sequence (331) and a primer binding domain (PBD) (332). Blocked primer molecule (334) comprises a cleavable region (335) and a complement to the PBD (332) on the circular template molecule (352).
  • Upon addition of a sample comprising a target nucleic acid of interest (304) (capable of complexing with the gRNA in RNP1 (301)), the target nucleic acid of interest (304) combines with and activates RNP1 (305) but does not interact with or activate RNP2 (302). Once activated, RNP1 cuts the target nucleic acid of interest (304) via sequence specific cis-cleavage, which activates non-specific trans-cleavage of other nucleic acids present in the reaction mix, including at least one of the blocked primer molecules (334). The circular blocked primer molecule (334), upon cleavage, becomes an unblocked linear primer molecule (344), which has a region (336) complementary to the PBD (332) on the circular template molecule (352) and can hybridize with the circular template molecule (352).
  • Once the unblocked linear primer molecule (344) and the circular template molecule (352) are hybridized (i.e., hybridized at the PBD (332) of the circular template molecule (352) and the PBD complement (336) on the unblocked linear primer molecule (344)), 3′→5′ exonuclease activity of the polymerase (338) removes the unhybridized single-stranded DNA at the 3′ end of the unblocked primer molecule (344). The polymerase (338) can now use the circular template molecule (352) (non-target strand) to produce concatenated activating nucleic acid molecules (360) (which are concatenated target strands), which will be cleaved by the trans-cleavage activity of activated RNP1. The cleaved regions of the concatenated synthesized activating molecules (360) (target strand) are capable of activating the RNP2 (302308) complex.
  • As described above, because the nucleic acid-guided nuclease in RNP2 (308) comprises both cis- and trans-cleavage activity, more blocked primer molecules (334) become unblocked primer molecules (344) triggering activation of more RNP2s (308) and more trans-cleavage activity in a cascade. FIG. 3B at bottom depicts the concurrent activation of reporter moieties. Intact reporter moieties (309) comprise a quencher (310) and a fluorophore (311). As described above in relation to FIG. 1B, the reporter moieties are also subject to trans-cleavage by activated RNP1 (305) and RNP2 (308). The intact reporter moieties (309) become activated reporter moieties (312) when the quencher (310) is separated from the fluorophore (311), and the fluorescent signal (313) is unquenched and can be detected. Signal strength increases rapidly as more blocked primer molecules (334) become unblocked primer molecules (344) generating synthesized activating nucleic acid molecules and triggering activation of more RNP2s (308) and more trans-cleavage activity of the reporter moieties (309). Again, here the reporter moieties are shown as separate molecules from the blocked nucleic acid molecules, but other configurations may be employed and are discussed in relation to FIG. 4 . Also note that as with the other embodiments of the cascade assay, in this embodiment, with the exception of the gRNA in RNP1, the cascade assay components stay the same no matter what target nucleic acid(s) of interest are being detected.
  • The polymerases used in the “blocked primer molecule” embodiments serve to polymerize a reverse complement strand of the template molecule (non-target strand) to generate a synthesized activating molecule (target strand) as described above. In some embodiments, the polymerase is a DNA polymerase, such as a BST, T4, or Therminator polymerase (New England BioLabs Inc., Ipswich Mass., USA). In some embodiments, the polymerase is a Klenow fragment of a DNA polymerase. In some embodiments the polymerase is a DNA polymerase with 5′→3′ DNA polymerase activity and 3′→5′ exonuclease activity, such as a Type I, Type II, or Type III DNA polymerase. In some embodiments, the DNA polymerase, including the Phi29, T7, Q5®, Q5U®, Phusion®, OneTaq®, LongAmp®, Vent®, or Deep Vent® DNA polymerases (New England BioLabs Inc., Ipswich Mass., USA), or any active portion or variant thereof. Also, a 3′ to 5′ exonuclease can be separately used if the polymerase lacks this activity.
  • FIG. 4 depicts three mechanisms in which a cascade assay reaction can release a signal from a reporter moiety. FIG. 4 at top shows the mechanism discussed in relation to FIGS. 2A, 3A and 3B. In this embodiment, a reporter moiety 409 is a separate molecule from the blocked nucleic acid molecules present in the reaction mix. Reporter moiety (409) comprises a quencher (410) and a fluorophore (411). An activated reporter moiety (412) emits a signal from the fluorophore (411) once it has been physically separated from the quencher (410).
  • FIG. 4 at center shows a blocked nucleic acid molecule (403), which is also a reporter moiety. In addition to quencher (410) and fluorophore (411), a blocking moiety (407) can be seen (see also blocked nucleic acid molecules 203 in FIG. 2A). Blocked nucleic acid molecule/reporter moiety (403) comprises a quencher (410) and a fluorophore (411). In this embodiment of the cascade assay, when the blocked nucleic acid molecule (403) is unblocked due to trans-cleavage initiated by the target nucleic acid of interest binding to RNP1, the unblocked nucleic acid molecule (406) also becomes an activated reporter moiety with fluorophore (411) separated from quencher (410). Note both the blocking moiety (407) and the quencher (410) are removed. In this embodiment, reporter signal is directly generated as the blocked nucleic acid molecules become unblocked.
  • FIG. 4 at the bottom shows that cis-cleavage of an unblocked nucleic acid or a synthesized activation molecule at a PAM distal sequence by RNP2 generates a signal. Shown are activated RNP2 (408), unblocked nucleic acid molecule (461), quencher (410), and fluorophore (411) forming an activated RNP2 with the unblocked nucleic acid/reporter moiety intact (460). Cis-cleavage of the unblocked nucleic acid/reporter moiety (461) results in an activated RNP2 with the reporter moiety activated (462), comprising the activated RNP2 (408), the unblocked nucleic acid molecule with the reporter moiety activated (463), quencher (410) and fluorophore (411).
  • Applications of the Cascade Assay
  • The present disclosure describes cascade assays for detecting a target nucleic acid of interest in a sample. As described above, the various embodiments of the cascade assay are notable in that, with the exception of the gRNA in RNP1, the cascade assay components stay the same no matter what target nucleic acid(s) of interest are being detected.
  • Target nucleic acids of interest are derived from samples. Suitable samples for testing include, but are not limited to, any environmental sample, such as air, water, soil, surface, food, clinical sites and products, industrial sites and products, pharmaceuticals, medical devices, nutraceuticals, cosmetics, personal care products, agricultural equipment and sites, and commercial samples, and any biological sample obtained from an organism or a part thereof, such as a plant, animal, or bacteria. In some embodiments, the biological sample is obtained from an animal subject, such as a human subject. A biological sample is any solid or fluid sample obtained from, excreted by or secreted by any living organism, including, without limitation, single celled organisms, such as bacteria, yeast, protozoans, and amoebas among others, multicellular organisms including plants or animals, including samples from a healthy or apparently healthy human subject or a human patient affected by a condition or disease to be diagnosed or investigated, such as an infection with a pathogenic microorganism, such as a pathogenic bacteria or virus. For example, a biological sample can be a biological fluid obtained from, for example, blood, plasma, serum, urine, stool, sputum, mucous, lymph fluid, synovial fluid, bile, ascites, pleural effusion, seroma, saliva, cerebrospinal fluid, aqueous or vitreous humor, or any bodily secretion, a transudate, an exudate (for example, fluid obtained from an abscess or any other site of infection or inflammation), or fluid obtained from a joint (for example, a normal joint or a joint affected by disease, such as rheumatoid arthritis, osteoarthritis, gout or septic arthritis), or a swab of skin or mucosal membrane surface (e.g., a nasal or buccal swab).
  • In some embodiments, the sample can be a viral or bacterial sample or a biological sample that has been minimally processed, e.g., only treated with a brief lysis step prior to detection. In some embodiments, minimal processing can include thermal lysis at an elevated temperature to release nucleic acids. Suitable methods are contemplated in U.S. Pat. No. 9,493,736, among other references. Common methods for cell lysis involve thermal, chemical, enzymatic, or mechanical treatment of the sample or a combination of those. In some embodiments, minimal processing can include treating the sample with chaotropic salts such as guanidine isothiocyanate or guanidine HCl. Suitable methods are contemplated in U.S. Pat. Nos. 8,809,519, 7,893,251, among other references. In some embodiments, minimal processing may include contacting the sample with reducing agents such as DTT or TCEP and EDTA to inactivate inhibitors and/or other nucleases present in the crude samples. In other embodiments, minimal processing for biofluids may include centrifuging the samples to obtain cell-debris free supernatant before applying the reagents. Suitable methods are contemplated in U.S. Pat. No. 8,809,519, among other references. In still other embodiments, minimal processing may include performing DNA/RNA extraction to get purified nucleic acids before applying CRISPR Cascade reagents.
  • FIG. 5A shows a lateral flow assay (LFA) device that can be used to detect the cleavage and separation of a signal from a reporter moiety. For example, the reporter moiety may be a single-stranded or double-stranded oligonucleotide with terminal biotin and fluorescein amidite (FAM) modifications; and, as described above, the reporter moiety may also be part of a blocked nucleic acid. The LFA device may include a pad with binding particles, such as gold nanoparticles functionalized with anti-FAM antibodies; a control line with a first binding moiety attached, such as avidin or streptavidin; a test line with a second binding moiety attached, such as antibodies; and an absorption pad. After completion of a cascade assay (see FIGS. 2A, 3A, and 3B), the assay reaction mix is added to the pad containing the binding particles, (e.g., antibody labeled gold nanoparticles). When the target nucleic acid of interest is present, a reporter moiety is cleaved, and when the target nucleic acid of interest is absent, the reporter is not cleaved.
  • A moiety on the reporter binds to the binding particles and is transported to the control line. When the target nucleic acid of interest is absent, the reporter moiety is not cleaved, and the first binding moiety binds to the reporter moiety, with the binding particles attached. When the target nucleic acid of interest is present, one portion of the cleaved reporter moiety binds to the first binding moiety, and another portion of the cleaved reporter moiety bound to the binding particles via the moiety binds to the second binding moiety. In one example, anti-FAM gold nanoparticles bind to a FAM terminus of a reporter moiety and flow sequentially towards the control line and then to the test line. For reporters that are not trans-cleaved, gold nanoparticles attach to the control line via biotin-streptavidin and result in a dark control line. In a negative test, since the reporter has not been cleaved, all gold conjugates are trapped on control line due to attachment via biotin-streptavidin. A negative test will result in a dark control line with a blank test line. In a positive test, reporter moieties have been trans-cleaved by the cascade assay, thereby separating the biotin terminus from the FAM terminus. For cleaved reporter moieties, nanoparticles are captured at the test line due to anti-FAM antibodies. This positive test results in a dark test line in addition to a dark control line.
  • In some embodiments, the LFA device is designed for syndromic testing. For example, multiple strips with pooled RNP1s targeting different target nucleic acids of interest may be employed, either as separate devices or in a combined device. As a non-limiting example, a syndromic testing device could include four lateral flow strips, with each strip indicating the presence of at least one out of several generally related (e.g., by genetics or by treatment) pathogens (FIG. 5B). One example of a use for syndromic testing is in respiratory illness. For example, the first lateral flow strip could indicate the presence of at least one of the several strains of influenza that cause the common flu (e.g., influenza A, influenza A/H1, influenza A/H3, influenza A/H1-2009, and influenza B); the second lateral flow strip could indicate the presence of at least one of the multiple strains of respiratory syncytial virus (RSV), such as RSV-A and RSV-B; the third lateral flow strip could indicate the presence of at least one variant of SARS-CoV-2 (e.g., B.1.1.7, B.1.351, P.1, B.1.617.2, BA.1, BA.2, BA.2.12.1, BA.4, and BA.5); and the fourth lateral flow strip could indicate the presence of at least one of other pathogens of interest (e.g., parainfluenza virus 1-4, human metapneumovirus, human rhinovirus, human enterovirus, adenovirus, coronavirus HKU1, coronavirus NL63, coronavirus 229E, coronavirus OC43, MERS, and many more). The results shown in FIG. 5B indicate a positive test for the presence of RSVA and/or RSV B nucleic acid molecules. Also as seen in FIG. 5B, the syndromic testing device could further include a lateral flow strip for a negative control and a lateral flow strip for a positive control.
  • The components of the cascade assay may be provided in various kits. In one aspect, the kit for detecting a target nucleic acid of interest in a sample includes: first ribonucleoprotein complexes (RNP1s), second ribonucleoprotein complexes (RNP2s), blocked nucleic acid molecules, and reporter moieties. The first complex (RNP1) comprises a first nucleic acid-guided nuclease and a first gRNA, where the first gRNA includes a sequence complementary to the target nucleic acid(s) of interest. Binding of the first complex (RNP1) to the target nucleic acid(s) of interest activates trans-cleavage activity of the first nucleic acid-guided nuclease. The second complex (RNP2) comprises a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest. The blocked nucleic acid molecule comprises a sequence complementary to the second gRNA, where trans-cleavage of the blocked nucleic acid molecule results in an unblocked nucleic acid molecule and the unblocked nucleic acid molecule can bind to the second complex (RNP2), thereby activating the trans-cleavage activity of the second nucleic acid-guided nuclease. Activating trans-cleavage activity in RNP2 results in an exponential increase in unblocked nucleic acid molecules and in active reporter moieties, where reporter moieties are nucleic acid molecules and/or are operably linked to the blocked nucleic acid molecules and produce a detectable signal upon cleavage by RNP2.
  • In a second aspect, the kit for detecting a target nucleic acid molecule in sample includes: first ribonucleoprotein complexes (RNP1s), second ribonucleoprotein complexes (RNP2s), template molecules, blocked primer molecules, a polymerase, NTPs, and reporter moieties. The first ribonucleoprotein complex (RNP1) comprises a first nucleic acid-guided nuclease and a first gRNA, where the first gRNA includes a sequence complementary to the target nucleic acid of interest and where binding of RNP1 to the target nucleic acid(s) of interest activates trans-cleavage activity of the first nucleic acid-guided nuclease. The second complex (RNP2) comprises a second nucleic acid-guided nuclease and a second gRNA that is not complementary to the target nucleic acid of interest. The template molecules comprise a primer binding domain (PBD) sequence as well as a sequence corresponding to a spacer sequence of the second gRNA. The blocked primer molecules comprise a sequence that is complementary to the PBD on the template nucleic acid molecule and a blocking moiety.
  • Upon binding to the target nucleic acid of interest, RNP1 becomes active triggering trans-cleavage activity that cuts at least one of the blocked primer molecules to produce at least one unblocked primer molecule. The unblocked primer molecule hybridizes to the PBD of one of the template nucleic acid molecules, is trimmed of excess nucleotides by the 3′-to-5′ exonuclease activity of the polymerase and is then extended by the polymerase and NTPs to form a synthesized activating molecule with a sequence that is complementary to the second gRNA of RNP2. Upon activating RNP2, additional trans-cleavage activity is initiated, cleaving at least one additional blocked primer molecule. Continued cleavage of blocked primer molecules and subsequent activation of more RNP2s proceeds at an exponential rate. A signal is generated upon cleavage of a reporter molecule by active RNP2 complexes; therefore, a change in signal production indicates the presence of the target nucleic acid molecule.
  • Any of the kits described herein may further include a sample collection device, e.g., a syringe, lancet, nasal swab, or buccal swab for collecting a biological sample from a subject, and/or a sample preparation reagent, e.g., a lysis reagent. Each component of the kit may be in separate container or two or more components may be in the same container. The kit may further include a lateral flow device used for contacting the biological sample with the reaction mixture, where a signal is generated to indicate the presence or absence of the target nucleic acid molecule of interest. In addition, the kit may further include instructions for use and other information.
  • EXAMPLES
  • The following examples are put forth so as to provide those of ordinary skill in the art with a complete disclosure and description of how to make and use the present invention and are not intended to limit the scope of what the inventors regard as their invention, nor are they intended to represent or imply that the experiments below are all of or the only experiments performed. It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific aspects without departing from the spirit or scope of the invention as broadly described. The present aspects are, therefore, to be considered in all respects as illustrative and not restrictive.
  • Example I: Preparation of Nucleic Acids of Interest
  • Mechanical lysis: Nucleic acids of interest may be isolated by various methods depending on the cell type and source (e.g., tissue, blood, saliva, environmental sample, etc.). Mechanical lysis is a widely-used cell lysis method and may be used to extract nucleic acids from bacterial, yeast, plant and mammalian cells. Cells are disrupted by agitating a cell suspension with “beads” at high speeds (beads for disrupting various types of cells can be sourced from, e.g., OPS Diagnostics (Lebanon N.J., US) and MP Biomedicals (Irvine, Calif., USA)). Mechanical lysis via beads begins with harvesting cells in a tissue or liquid, where the cells are first centrifuged and pelleted. The supernatant is removed and replaced with a buffer containing detergents as well as lysozyme and protease. The cell suspension is mixed to promote breakdown of the proteins in the cells and the cell suspension then is combined with small beads (e.g., glass, steel, or ceramic beads) that are mixed (e.g., vortexed) with the cell suspension at high speeds. The beads collide with the cells, breaking open the cell membrane with shear forces. After “bead beating”, the cell suspension is centrifuged to pellet the cellular debris and beads, and the supernatant may be purified via a nucleic acid binding column (such as the MagMAX™ Viral/Pathogen Nucleic Acid Isolation Kit from ThermoFisher (Waltham, Mass., USA) and others from Qiagen (Hilden Germany), TakaraBio (San Jose, Calif., USA), and Biocomma (Shenzen, China)) to collect the nucleic acids (see the discussion of solid phase extraction below).
  • Solid phase extraction (SPE): Another method for capturing nucleic acids is through solid phase extraction. SPE involves a liquid and stationary phase, which selectively separate the target analyte (here, nucleic acids) from the liquid in which the cells are suspended based on specific hydrophobic, polar, and/or ionic properties of the target analyte in the liquid and the stationary solid matrix. Silica binding columns and their derivatives are the most commonly used SPE techniques, having a high binding affinity for DNA under alkaline conditions and increased salt concentration; thus, a highly alkaline and concentrated salt buffer is used. The nucleic acid sample is centrifuged through a column with a highly porous and high surface area silica matrix, where binding occurs via the affinity between negatively charged nucleic acids and positively charged silica material. The nucleic acids bind to the silica matrices, while the other cell components and chemicals pass through the matrix without binding. One or more wash steps typically are performed after the initial sample binding (i.e., the nucleic acids to the matrix), to further purify the bound nucleic acids, removing excess chemicals and cellular components non-specifically bound to the silica matrix. Alternative versions of SPE include reverse SPE and ion exchange SPE, and use of glass particles, cellulose matrices, and magnetic beads.
  • Thermal lysis: Thermal lysis involves heating a sample of mammalian cells, virions, or bacterial cells at high temperatures thereby damaging the cellular membranes by denaturizing the membrane proteins. Denaturizing the membrane proteins results in the release of intracellular DNA. Cells are generally heated above 90° C., however time and temperature may vary depending on sample volume and sample type. Once lysed, typically one or more downstream methods, such as use of nucleic acid binding columns for solid phase extraction as described above, are required to further purify the nucleic acids.
  • Physical lysis: Common physical lysis methods include sonication and osmotic shock. Sonication involves creating and rupturing of cavities or bubbles to release shockwaves, thereby disintegrating the cellular membranes of the cells. In the sonication process, cells are added into lysis buffer, often containing phenylmethylsulfonyl fluoride, to inhibit proteases. The cell samples are then placed in a water bath and a sonication wand is placed directly into the sample solution. Sonication typically occurs between 20-50 kHz, causing cavities to be formed throughout the solution as a result of the ultrasonic vibrations; subsequent reduction of pressure then causes the collapse of the cavity or bubble resulting in a large amount of mechanical energy being released in the form of a shockwave that propagates through the solution and disintegrates the cellular membrane. The duration of the sonication pulses and number of pulses performed varies depending on cell type and the downstream application. After sonication, the cell suspension typically is centrifuged to pellet the cellular debris and the supernatant containing the nucleic acids may be further purified by solid phase extraction as described above.
  • Another form of physical lysis is osmotic shock, which is most typically used with mammalian cells. Osmotic shock involves placing cells in DI/distilled water with no salt added. Because the salt concentration is lower in the solution than in the cells, water is forced into the cell causing the cell to burst, thereby rupturing the cellular membrane. The sample is typically purified and extracted by techniques such as e.g., solid phase extraction or other techniques known to those of skill in the art.
  • Chemical lysis: Chemical lysis involves rupturing cellular and nuclear membranes by disrupting the hydrophobic-hydrophilic interactions in the membrane bilayers via detergents. Salts and buffers (such as, e.g., Tris-HCl pH8) are used to stabilize pH during extraction, and chelating agents (such as ethylenediaminetetraacetic acid (EDTA)) and inhibitors (e.g., Proteinase K) are also added to preserve the integrity of the nucleic acids and protect against degradation. Often, chemical lysis is used with enzymatic disruption methods (see below) for lysing bacterial cell walls. In addition, detergents are used to lyse and break down cellular membranes by solubilizing the lipids and membrane proteins on the surface of cells. The contents of the cells include, in addition to the desired nucleic acids, inner cellular proteins and cellular debris. Enzymes and other inhibitors are added after lysis to inactivate nucleases that may degrade the nucleic acids. Proteinase K is commonly added after lysis, destroying DNase and RNase enzymes capable of degrading the nucleic acids. After treatment with enzymes, the sample is centrifuged, pelleting cellular debris, while the nucleic acids remain in the solution. The nucleic acids may be further purified as described above.
  • Another form of chemical lysis is the widely-used procedure of phenol-chloroform extraction. Phenol-chloroform extraction involves the ability for nucleic acids to remain soluble in an aqueous solution in an acidic environment, while the proteins and cellular debris can be pelleted down via centrifugation. Phenol and chloroform ensure a clear separation of the aqueous and organic (debris) phases. For DNA, a pH of 7-8 is used, and for RNA, a more acidic pH of 4.5 is used.
  • Enzymatic lysis: Enzymatic disruption methods are commonly combined with other lysis methods such as those described above to disrupt cellular walls (bacteria and plants) and membranes. Enzymes such as lysozyme, lysostaphin, zymolase, and protease are often used in combination with other techniques such as physical and chemical lysis. For example, one can use cellulase to disrupt plant cell walls, lysosomes to disrupt bacterial cell walls and zymolase to disrupt yeast cell walls.
  • Example II: RNP Formation
  • For RNP complex formation, 250 nM of LbCas12a nuclease protein was incubated with 375 nM of a target specific gRNA in 1× Buffer (10 mM Tris-HCl, 100 μg/mL BSA) with 2-15 mM MgCl2 at 25° C. for 20 minutes. The total reaction volume was 2 μL. Other ratios of LbCas12a nuclease to gRNAs were tested, including 1:1, 1:2 and 1:5. The incubation temperature can range from 20° C.-37° C., and the incubation time can range from 10 minutes to 4 hours.
  • Example III: Blocked Nucleic Acid Molecule Formation
  • Ramp cooling: For formation of the secondary structure of blocked nucleic acids, 2.5 μM of a blocked nucleic acid molecule (any of Formulas I-IV) was mixed in a T50 buffer (20 mM Tris HCl, 50 mM NaCl) with 10 mM MgCl2 for a total volume of 50 μL. The reaction was heated to 95° C. at 1.6° C./second and incubated at 95° C. for 5 minutes to dehybridize any secondary structures. Thereafter, the reaction was cooled to 37° C. at 0.015° C./second to form the desired secondary structure.
  • Snap cooling: For formation of the secondary structure of blocked nucleic acids, 2.5 μM of a blocked nucleic acid molecule (any of Formulas I-IV) was mixed in a T50 buffer (20 mM Tris HCl, 50 mM NaCl) with 10 mM MgCl2 for a total volume of 50 μL. The reaction was heated to 95° C. at 1.6° C./second and incubated at 95° C. for 5 minutes to dehybridize any secondary structures. Thereafter, the reaction was cooled to room temperature by removing the heat source to form the desired secondary structure.
  • Snap cooling on ice: For formation of the secondary structure of blocked nucleic acids, 2.5 μM of a blocked nucleic acid molecule (any of Formulas I-IV) was mixed in a T50 buffer (20 mM Tris HCl, 50 mM NaCl) with 10 mM MgCl2 for a total volume of 50 μL. The reaction was heated to 95° C. at 1.6° C./second and incubated at 95° C. for 5 minutes to dehybridize any secondary structures. Thereafter, the reaction was cooled to room temperature by placing the reaction tube on ice to form the desired secondary structure.
  • Example IV: Reporter Moiety Formation
  • The reporter moieties used in the reactions herein were single-stranded DNA oligonucleotides 5-10 bases in length (e.g., with sequences of TTATT, TTTATTT, ATTAT, ATTTATTTA, AAAAA, or AAAAAAAAA) with a fluorophore and a quencher attached on the 5′ and 3′ ends, respectively. In one example using a Cas12a cascade, the fluorophore was FAM-6, and the quencher was IOWA BLACK® (Integrated DNA Technologies, Coralville, Iowa). In another example using a Cas13 cascade, the reporter moieties were single stranded RNA oligonucleotides 5-10 bases in length (e.g., r(U)n, r(UUAUU)n, r(A)n).
  • Example V: Cascade Assay
  • 9+1 Format (final reaction mix components added at the same time): RNP1 was assembled using the LbCas12a nuclease and a gRNA for the Methicillin resistant Staphylococcus aureus (MRSA) DNA according to the RNP complex formation protocol described in Example II (for this sequence, see Example VIII). Briefly, 250 nM LbCas12a nuclease was assembled with 375 nM of the MRSA-target specific gRNA. Next, RNP2 was formed using the LbCas12a nuclease and a gRNA specific for a selected blocked nucleic acid molecule (Formula I-IV) using 500 nM LbCas12a nuclease assembled with 750 nM of the blocked nucleic acid-specific gRNA incubated in 1×NEB 2.1 Buffer (New England Biolabs, Ipswich, Mass.) with 5 mM MgCl2 at 25° C. for 20-40 minutes. Following incubation, RNP1s were diluted to a concentration of 75 nM LbCas12a: 112.5 nM gRNA. Thereafter, the final reaction was carried out in 1× Buffer, with 500 nM of the ssDNA reporter moiety, 1×ROX dye (Thermo Fisher Scientific, Waltham, Mass.) for passive reference, 2.5 mM MgCl2, 4 mM NaCl, 15 nM LbCas12a: 22.5 nM gRNA RNP1, 20 nM LbCas12a: 35 nM gRNA RNP2, and 50 nM blocked nucleic acid molecule (any one of Formula I-IV) in a total volume of 9 μL. 1 μL of MRSA DNA target (with samples having as low as three copies and as many as 30000 copies—see FIGS. 6-14 ) was added to make a final volume of 10 μL. The final reaction was incubated in a thermocycler at 25° C. with fluorescence measurements taken every 1 minute.
  • 2+1+7 Format (RNP1 and MRSA target pre-incubated before addition to final reaction mix): RNP1 was assembled using the LbCas12a nuclease and a gRNA for the MRSA DNA according to RNP formation protocol described in Example II (for this sequence, see Example VIII). Briefly, 250 nM LbCas12a nuclease was assembled with 375 nM of the MRSA-target specific gRNA. Next, RNP2 was formed using the LbCas12a nuclease and a gRNA specific for a selected blocked nucleic acid molecule (Formula I-IV) using 500 nM LbCas12a nuclease assembled with 750 nM of the blocked nucleic acid-specific gRNA incubated in 1×NEB 2.1 Buffer (New England Biolabs, Ipswich, Mass.) with 5 mM MgCl2 at 25° C. for 20-40 minutes. Following incubation, RNP1s were diluted to a concentration of 75 nM LbCas12a: 112.5 nM gRNA. After dilution, the formed RNP1 was mixed with 1 μL of MRSA DNA target and incubated at 20° C.-37° C. for up to 10 minutes to activate RNP1. The final reaction was carried out in 1× Buffer, with 500 nM of the ssDNA reporter moiety, 1×ROX dye (Thermo Fisher Scientific, Waltham, Mass.) for passive reference, 2.5 mM MgCl2, 4 mM NaCl, the pre-incubated and activated RNP1, 20 nM LbCas12a: 35 nM gRNA RNP2, and 50 nM blocked nucleic acid molecule (any one of Formula I-IV) in a total volume of 9 μL. The final reaction was incubated in a thermocycler at 25° C. with fluorescence measurements taken every 1 minute.
  • 2+1+6+1 Format (RNP1 and MRSA target pre-incubated before addition to final reaction mix and blocked nucleic acid molecule added to final reaction mix last): RNP1 was assembled using the LbCas12a nuclease and a gRNA for the MRSA DNA according to the RNP complex formation protocol described in Example II (for this sequence, see Example VIII). Briefly, 250 nM LbCas12a nuclease was assembled with 375 nM of the MRSA-target specific gRNA. Next, RNP2 was formed using the LbCas12a nuclease and a gRNA specific for a selected blocked nucleic acid molecule (Formula I-IV) using 500 nM LbCas12a nuclease assembled with 750 nM of the blocked nucleic acid-specific gRNA incubated in 1×NEB 2.1 Buffer (New England Biolabs, Ipswich, Mass.) with 5 mM MgCl2 at 25° C. for 20-40 minutes. Following incubation, RNP1s were diluted to a concentration of 75 nM LbCas12a: 112.5 nM gRNA. After dilution, the formed RNP1 was mixed with 1 μL of MRSA DNA target and incubated at 20° C.-37° C. for up to 10 minutes to activate RNP1. The final reaction was carried out in 1× Buffer, with 500 nM of the ssDNA reporter moiety, 1×ROX dye (Thermo Fisher Scientific, Waltham, Mass.) for passive reference, 2.5 mM MgCl2, 4 mM NaCl, the pre-incubated and activated RNP1, and 20 nM LbCas12a: 35 nM gRNA RNP2 in a total volume of 9 μL. Once the reaction mix was made, 1 μL (50 nM) blocked nucleic acid molecule (any one of Formula I-IV) was added for a total volume of 10 μL. The final reaction was incubated in a thermocycler at 25° C. with fluorescence measurements taken every 1 minute.
  • Example VI: Detection of SARS-CoV-2 with the Cascade Assay in Under 10 Minutes
  • To detect the presence of SARS-CoV-2 in a sample and determine the sensitivity of detection with the cascade assay, titration experiments were performed using a SARS-CoV-2 gamma-inactivated virus and a synthesized positive control. To serve as the positive control for the detection system, a plasmid containing a 316 bp SARS-CoV-2 nucleocapsid gene (N-gene) was synthesized by IDT (Integrated DNA Technologies, Coralville, Iowa). The N-gene sequence was as follows.
  • SARS-CoV-2 N-gene Target Sequence (Positive
    Control; SEQ ID NO: 3):
    CTCAAGGAACAACATTGCCAAAAGGCTTCTACGCAGAAGGGAGCAGAGG
    CGGCAGTCAAGCCTCTTCTCGTTCCTCATCACGTAGTCGCAACAGTTCA
    AGAAATTCAACTCCAGGCAGCAGTAGGGGAACTTCTCCTGCTAGAATGG
    CTGGCAATGGCGGTGATGCTGCTCTTGCTTTGCTGCTGCTTGACAGATT
    GAACCAGCTTGAGAGCAAAATGTCTGGTAAAGGCCAACAACAACAAGGC
    CAAACTGTCACTAAGAAATCTGCTGCTGAGGCTTCTAAGAAGCCTCGGC
    AAAAACGTACTGCCACTAAAGC
  • For the detection of SARS-CoV-2, a gamma-inactivated virus was incubated in a buffer at 95° C. for 1 minute in order to lyse and release viral RNA, followed by reverse transcription to convert the viral RNA to cDNA. The reverse transcription primer is designed to reverse transcribe the SARS-CoV-2 N-gene. The reverse transcription primer is as follows.
  • Reverse Transcription Primer (SEQ ID NO: 4):
    GTTTGGCCTTGTTGTTGTT

    RNP1 was preassembled with a guide RNA (gRNA) sequence designed to target the N-gene of SARS-CoV-2. The guide sequence is as follows.
  • Guide Sequence (SEQ ID NO: 5):
    UAAUUUCUACUAAGUGUAGAUUUGAACUGUUGCGACUACGUGAU
  • RNP2 was preassembled with a gRNA sequence designed to target an unblocked nucleic acid molecule that results from unblocking (i.e., linearlizing) a circularized blocked nucleic acid molecule. A circularized blocked nucleic acid molecule was designed and synthesized. The blocked nucleic acid molecule was as follows.
  • Blocked nucleic acid molecule (SEQ ID NO: 6):
    GTT*AT*TA*AA*TG*AC*TT*CT*CATT

    where the * indicate bonds that are phosphorothioate modified. The 5′ and 3′ ends were covalently linked to form a circularized molecule. The SARS-CoV-2 gamma-inactivated virus or positive control with 1700, 170, 17, or 5 total copies of N-gene DNA, or a negative control (0 copies of N-gene), were added to a reaction mixture to begin the cascade assay. The reaction mix contained the preassembled RNP1, preassembled RNP2, a blocked nucleic acid molecule in a buffer (˜pH 8) containing 4 mM MgCl2 and 101 mM NaCl. The buffering conditions were optimized to reduce non-specific nickase activity by the RNP complexes.
  • The cascade assay reaction proceeded for 20 minutes at 37° C. and fluorescence from the reporter molecule was measured. In all the SARS-CoV-2 gamma-inactivated virus and positive control titrations, a significant change in fluorescence was observed after 10 and 5 minutes, relative to the negative control (see the results in FIGS. 6 and 7 ). For the results shown in FIG. 6 , the presence of the N-gene was detected in 10 minutes or less at 37° C. The data represent 3 independent biological replicates. Data is presented as mean±s.d.****=p<0.0001 (student t-test). For the results shown in FIG. 7 , the presence of SARS-CoV-2 was detected in 10 minutes or 5 minutes at 37° C. The data represent 3 independent biological replicates. Data is presented as mean±s.d.****=p<0.0001 (student t-test). The results indicate that the cascade assay can detect as few as 5 SARS-CoV-2 target molecules in 10 minutes or less at room temperature.
  • Example VII: Detection of MRSA in 5 Minutes with Cascade Assay at 37° C.
  • To detect the presence of Methicillin resistant Staphylococcus aureus (MRSA) and determine the sensitivity of detection with the cascade assay, titration experiments with a MRSA DNA target nucleic acid of interest were performed. The MRSA DNA sequence (NCBI Reference Sequence NC: 007793.1) is as follows.
  • SEQ ID NO: 7:
    ATGAAAAAGATAAAAATTGTTCCACTTATTTTAATAGTTGTAGTTGTCGGGTTTGGTATATATTTTTATG
    CTTCAAAAGATAAAGAAATTAATAATACTATTGATGCAATTGAAGATAAAAATTTCAAACAAGTTTATAA
    AGATAGCAGTTATATTTCTAAAAGCGATAATGGTGAAGTAGAAATGACTGAACGTCCGATAAAAATATAT
    AATAGTTTAGGCGTTAAAGATATAAACATTCAGGATCGTAAAATAAAAAAAGTATCTAAAAATAAAAAAC
    GAGTAGATGCTCAATATAAAATTAAAACAAACTACGGTAACATTGATCGCAACGTTCAATTTAATTTTGT
    TAAAGAAGATGGTATGTGGAAGTTAGATTGGGATCATAGCGTCATTATTCCAGGAATGCAGAAAGACCAA
    AGCATACATATTGAAAATTTAAAATCAGAACGTGGTAAAATTTTAGACCGAAACAATGTGGAATTGGCCA
    ATACAGGAACAGCATATGAGATAGGCATCGTTCCAAAGAATGTATCTAAAAAAGATTATAAAGCAATCGC
    TAAAGAACTAAGTATTTCTGAAGACTATATCAAACAACAAATGGATCAAAATTGGGTACAAGATGATACC
    TTCGTTCCACTTAAAACCGTTAAAAAAATGGATGAATATTTAAGTGATTTCGCAAAAAAATTTCATCTTA
    CAACTAATGAAACAGAAAGTCGTAACTATCCTCTAGGAAAAGCGACTTCACATCTATTAGGTTATGTTGG
    TCCCATTAACTCTGAAGAATTAAAACAAAAAGAATATAAAGGCTATAAAGATGATGCAGTTATTGGTAAA
    AAGGGACTCGAAAAACTTTACGATAAAAAGCTCCAACATGAAGATGGCTATCGTGTCACAATCGTTGACG
    ATAATAGCAATACAATCGCACATACATTAATAGAGAAAAAGAAAAAAGATGGCAAAGATATTCAACTAAC
    TATTGATGCTAAAGTTCAAAAGAGTATTTATAACAACATGAAAAATGATTATGGCTCAGGTACTGCTATC
    CACCCTCAAACAGGTGAATTATTAGCACTTGTAAGCACACCTTCATATGACGTCTATCCATTTATGTATG
    GCATGAGTAACGAAGAATATAATAAATTAACCGAAGATAAAAAAGAACCTCTGCTCAACAAGTTCCAGAT
    TACAACTTCACCAGGTTCAACTCAAAAAATATTAACAGCAATGATTGGGTTAAATAACAAAACATTAGAC
    GATAAAACAAGTTATAAAATCGATGGTAAAGGTTGGCAAAAAGATAAATCTTGGGGTGGTTACAACGTTA
    CAAGATATGAAGTGGTAAATGGTAATATCGACTTAAAACAAGCAATAGAATCATCAGATAACATTTTCTT
    TGCTAGAGTAGCACTCGAATTAGGCAGTAAGAAATTTGAAAAAGGCATGAAAAAACTAGGTGTTGGTGAA
    GATATACCAAGTGATTATCCATTTTATAATGCTCAAATTTCAAACAAAAATTTAGATAATGAAATATTAT
    TAGCTGATTCAGGTTACGGACAAGGTGAAATACTGATTAACCCAGTACAGATCCTTTCAATCTATAGCGC
    ATTAGAAAATAATGGCAATATTAACGCACCTCACTTATTAAAAGACACGAAAAACAAAGTTTGGAAGAAA
    AATATTATTTCCAAAGAAAATATCAATCTATTAACTGATGGTATGCAACAAGTCGTAAATAAAACACATA
    AAGAAGATATTTATAGATCTTATGCAAACTTAATTGGCAAATCCGGTACTGCAGAACTCAAAATGAAACA
    AGGAGAAACTGGCAGACAAATTGGGTGGTTTATATCATATGATAAAGATAATCCAAACATGATGATGGCT
    ATTAATGTTAAAGATGTACAAGATAAAGGAATGGCTAGCTACAATGCCAAAATCTCAGGTAAAGTGTATG
    ATGAGCTATATGAGAACGGTAATAAAAAATACGATATAGATGAATAA
  • Briefly, an RNP1 was preassembled with a gRNA sequence designed to target MRSA DNA. Specifically, RNP1 was designed to target a 20 bp region of the mecA gene of MRSA: TGTATGGCATGAGTAACGAA (SEQ ID NO: 8). An RNP2 was preassembled with a gRNA sequence designed to target an unblocked nucleic acid molecule that results from unblocking (i.e., linearizing) a circularized blocked nucleic acid molecule. The circularized blocked nucleic acid molecule was designed and synthesized (SEQ ID NO: 6): GTT*AT*TA*AA*TG*AC*TT*CT*CATT, where the * indicate bonds that are phosphorothioate modified. The 5′ and 3′ ends were covalently linked to form a circularized molecule. MRSA DNA (SEQ ID NO: 7) with 3000, 300, 30, or 3 total copies, or a negative control (e.g., 0 copies), were added to a reaction mixture to begin the cascade assay. The reaction mix contained the preassembled RNP1, preassembled RNP2, and a circularized blocked nucleic acid molecule, in a buffer (pH of about 8) containing 4 mM MgCl2 and 101 mM NaCl. The buffering conditions were optimized to reduce non-specific nickase activity by the RNP complexes. The cascade assay proceeded for 10 minutes at 37° C., and fluorescence from the reporter moiety was measured. In all titrations, a significant change in fluorescence was observed after 10 and 5 minutes, relative to the negative control (see the results in FIG. 8 ). The cascade assay was initiated to identify the presence of MRSA in 10 minutes or 5 minutes at 37° C. Data represent 3 independent biological replicates. Data is presented as mean±s.d.****=p<0.0001 (student t-test). The results indicate that the cascade assay can detect as few as 3 MRSA target molecules in only 5 minutes when at 37° C.
  • Example VIII: Detection of MRSA in Under 10 Minutes with a Cascade Assay at 25° C.
  • To detect the presence of MRSA and determine the sensitivity of detection with the cascade assay, titration experiments with MRSA DNA (SEQ ID NO: 7) were performed.
  • Briefly, an RNP1 was preassembled with a guide RNA (gRNA) sequence designed to target MRSA DNA. Specifically, RNP1 was designed to target the following 20 bp sequence in the mecA gene of MRSA: TGTATGGCATGAGTAACGAA (SEQ ID NO: 8). An RNP2 was preassembled with a gRNA sequence designed to target an unblocked nucleic acid molecule that results from unblocking (i.e., linearizing) a circularized blocked nucleic acid molecule. A circularized blocked nucleic acid molecule was designed and synthesized (SEQ ID NO: 6): GTT*AT*TA*AA*TG*AC*TT*CT*CATT, where the * indicate bonds that are phosphorothioate modified. The 5′ and 3′ ends were covalently linked to form a circularized molecule.
  • MRSA DNA (SEQ ID NO: 7) with 30000, 3000, 300, 30, or 3 total copies, or a negative control (e.g., 0 copies), was added to a reaction mixture to begin the cascade assay. The reaction mix contained the preassembled RNP1, preassembled RNP2, the circularized blocked nucleic acid molecule in a buffer (˜pH 8) containing 4 mM MgCl2 and 101 mM NaCl. The buffering conditions were optimized to reduce non-specific nickase activity by the RNP complexes. The cascade reaction proceeded for 20 minutes at 25° C., and fluorescence by the reporter molecule was measured. In all titrations, a significant change in fluorescence was observed after 10 and 5 minutes, relative to the negative control (see the results in FIG. 9 ), indicating that the cascade assay can detect as few as 3 MRSA target molecules in 10 minutes or less while at room temperature. The data represent 3 independent biological replicates and is presented as mean±s.d.****=p<0.0001 (student t-test).
  • Example IX: Optimized Detection of MRSA in 1 Minute with the Cascade Assay at 25° C.
  • RNP1 was preassembled with a gRNA sequence designed to target MRSA DNA (SEQ ID NO: 7). Specifically, RNP1 was designed to target the following 20 bp sequence in the mecA gene of MRSA: TGTATGGCATGAGTAACGAA (SEQ ID NO: 8). RNP2 was preassembled with a gRNA sequence designed to target an unblocked nucleic acid molecule that results from unblocking a blocked nucleic acid molecule. Five different double stranded and linear blocked nucleic acid molecules were designed, synthesized, and tested: molecule C5, molecule C6, molecule C7, molecule C8, and molecule C9. The nucleotide sequences of molecules C5-C9 are as follows.
  • C5 (SEQ ID NO: 9):
    GTTATTGAGAATTATTGTCATATTATTCTAATATTATTAAGGCTTATT
    CACTGTTATTATTATAATTATTAAGCTTATT
    C6 (SEQ ID NO: 10):
    GTTATTGAGAAGTTATTATCATCTATTATTAATAAGTTATTGCCACTA
    TTATTGTTATAATTATTAAGCTTATT
    C7 (SEQ ID NO: 11):
    GTTATTGAGAAGTATTATTCATCTAATTATTATAAGGCCTTATTACTG
    TTATTATTAATAAGCTTATT
    C8 (SEQ ID NO: 12):
    GTTATTGAGAAGTCTTATTATCTAATATTATTAGGCCACTGTTATTAT
    TATAATAAGCTTATT
    C9 (SEQ ID NO: 13):
    GTTATTGAGAAGTCATTATTATCTAATAAGTTATTGCCACTGTTATTA
    TTATAATAAGCTTATT
  • Three copies of MRSA DNA (SEQ ID NO: 7) or a negative control (e.g., 0 copies) were added to a reaction mix to begin the cascade assay. The reaction mix contained the preassembled RNP1, preassembled RNP2, and one of the five blocked nucleic acid molecules in a buffer (˜pH 8) containing 4 mM MgCl2 and 71 mM NaCl. These buffering conditions were optimized to reduce non-specific nickase activity by the RNP complexes. Each cascade assay proceeded for 10-20 minutes at 25° C., and fluorescence by the reporter molecule was measured for each cascade assay containing C5 (see the results shown in FIG. 10 , where the presence of just 3 MRSA targets was detected in 5 minutes or less at 25° C. The data represent 9 independent biological replicates and is presented as mean±s.d.****=p<0.0001 (student t-test), molecule C6 (see the results shown in FIG. 11 , where the presence of just 3 MRSA targets was detected in 5 minutes or less at 25° C. The data represent 6 independent biological replicates and is presented as mean±s.d.****=p<0.0001 (student t-test)), molecule C7 (see the results shown in FIG. 12 , where the presence of just 3 MRSA targets was detected in 5 minutes or less at 25° C. Data represent 6 independent biological replicates and is presented as mean±s.d.****=p<0.0001 (student t-test)), molecule C8 (see the results shown in FIG. 13 , where the presence of just 3 MRSA targets was detected in 5 minutes or less at 25° C. Data represent 6 independent biological replicates and is presented as mean±s.d.****=p<0.0001 (student t-test)), and molecule C9 (see the results shown in FIG. 14 , where the presence of just 3 MRSA targets was detected in 10 minutes or less at 25° C. Data represent 6 independent biological replicates and data is presented as mean±s.d.****=p<0.0001 (student t-test)). A significant change in fluorescence is observed after 1 minute and after 5 minutes, relative to the negative control, indicating that the cascade assay can be optimized to detect as few as 3 MRSA target molecules in as little as 1 minute while at room temperature.
  • While certain embodiments have been described, these embodiments have been presented by way of example only and are not intended to limit the scope of the present disclosures. Indeed, the novel methods, apparatuses, modules, instruments and systems described herein can be embodied in a variety of other forms; furthermore, various omissions, substitutions and changes in the form of the methods, apparatuses, modules, instruments and systems described herein can be made without departing from the spirit of the present disclosures. The accompanying claims and their equivalents are intended to cover such forms or modifications as would fall within the scope and spirit of the present disclosures.

Claims (28)

We claim:
1. A reaction mixture for a CRISPR nuclease cascade assay comprising:
a first ribonucleoprotein (RNP) (RNP1) complex comprising a first CRISPR nuclease and a first guide RNA (gRNA); wherein the first gRNA comprises a sequence complementary to a target nucleic acid of interest, and wherein the first CRISPR nuclease nuclease exhibits both cis-cleavage activity and trans-cleavage activity;
a second ribonucleoprotein (RNP2) complex comprising a second CRISPR nuclease and a second gRNA that is not complementary to the target nucleic acid of interest; wherein the second CRISPR nuclease exhibits both CRISPR nuclease; and
a plurality of blocked nucleic acid molecules comprising a sequence complementary to the second gRNA, wherein the blocked nucleic acid molecules do not bind to the RNP1 complex or the RNP2 complex.
2. The reaction mixture of claim 1, wherein the first and/or second CRISPR nuclease is a Cas3, Cas12a, Cas12b, Cas12c, Cas12d, Cas12e, Cas14, Cas12h, Cas12i, Cas12j, Cas13a, Cas13b nuclease.
3. The reaction mixture of claim 1, wherein the first CRISPR nuclease is a different CRISPR nuclease than the second CRISPR nuclease.
4. The reaction mixture of claim 1, wherein the first and/or second CRISPR nuclease is a Type V or Type VI CRISPR nuclease.
5. The reaction mixture of claim 1, wherein the first and/or second CRISPR nuclease comprises a RuvC nuclease domain or a RuvC-like nuclease domain and lacks an HNH nuclease domain.
6. The reaction mixture of claim 1, wherein the blocked nucleic acid molecules comprise a structure represented by any one of Formulas I-IV, wherein Formulas I-IV comprise in the 5′-to-3′ direction:

(a)A-(B-L)J-C-M-T-D  (Formula I);
wherein A is 0-15 nucleotides in length;
B is 4-12 nucleotides in length;
L is 3-25 nucleotides in length;
J is an integer between 1 and 10;
C is 4-15 nucleotides in length;
M is 1-25 nucleotides in length or is absent, wherein if M is absent then A-(B-L)J-C and T-D are separate nucleic acid strands;
T is 17-135 nucleotides in length and comprises at least 50% sequence complementarity to B and C; and
D is 0-10 nucleotides in length and comprises at least 50% sequence complementarity to A;

(b)D-T-T′-C-(L-B)J-A  (Formula II);
wherein D is 0-10 nucleotides in length;
T-T′ is 17-135 nucleotides in length;
T′ is 1-10 nucleotides in length and does not hybridize with T;
C is 4-15 nucleotides in length and comprises at least 50% sequence complementarity to T;
L is 3-25 nucleotides in length and does not hybridize with T;
B is 4-12 nucleotides in length and comprises at least 50% sequence complementarity to T;
J is an integer between 1 and 10;
A is 0-15 nucleotides in length and comprises at least 50% sequence complementarity to D;

(c)T-D-M-A-(B-L)J-C  (Formula III);
wherein T is 17-135 nucleotides in length;
D is 0-10 nucleotides in length;
M is 1-25 nucleotides in length or is absent, wherein if M is absent then T-D and A-(B-L)J-C are separate nucleic acid strands;
A is 0-15 nucleotides in length and comprises at least 50% sequence complementarity to D;
B is 4-12 nucleotides in length and comprises at least 50% sequence complementarity to T;
L is 3-25 nucleotides in length;
J is an integer between 1 and 10; and
C is 4-15 nucleotides in length; or

(d)T-D-M-A-Lp-C  (Formula IV);
wherein T is 17-31 nucleotides in length (e.g., 17-100, 17-50, or 17-25);
D is 0-15 nucleotides in length;
M is 1-25 nucleotides in length;
A is 0-15 nucleotides in length and comprises a sequence complementary to D; and
L is 3-25 nucleotides in length;
p is 0 or 1;
C is 4-15 nucleotides in length and comprises a sequence complementary to T.
7. The reaction mixture of claim 6, wherein:
(a) T of Formula I comprises at least 80% sequence complementarity to B and C;
(b) D of Formula I comprises at least 80% sequence complementarity to A;
(c) C of Formula II comprises at least 80% sequence complementarity to T;
(d) B of Formula II comprises at least 80% sequence complementarity to T;
(e) A of Formula II comprises at least 80% sequence complementarity to D;
(f) A of Formula III comprises at least 80% sequence complementarity to D;
(g) B of Formula III comprises at least 80% sequence complementarity to T;
(h) A of Formula IV comprises at least 80% sequence complementarity to D; and/or
(i) C of Formula IV comprises at least 80% sequence complementarity to T.
8. The reaction mixture of claim 1, wherein the blocked nucleic acid molecules comprise a first sequence complementary to the second gRNA and a second sequence not complementary to the second gRNA, wherein the second sequence at least partially hybridizes to the first sequence resulting in at least one loop.
9. The reaction mixture of claim 1, wherein the reaction mixture comprises about 1 fM to about 10 μM of the RNP1.
10. The reaction mixture of claim 1, wherein the reaction mixture comprises about 1 fM to about 1 mM of the RNP2.
11. The reaction mixture of claim 1, wherein the reaction mixture comprises at least two different RNP1s, wherein different RNP1s comprise different gRNA sequences.
12. The reaction mixture of claim 11, wherein the reaction mixture comprises 2 to 10000 different RNP1s.
13. The reaction mixture of claim 12, wherein the reaction mixture comprises 2 to 1000 different RNP1s.
14. The reaction mixture of claim 13, wherein the reaction mixture comprises 2 to 100 different RNP1s.
15. The reaction mixture of claim 14, wherein the reaction mixture comprises 2 to 10 different RNP1 complexes.
16. The reaction mixture of claim 1, wherein the blocked nucleic acid molecules include the sequence of any one of SEQ ID NOs: 14-1421.
17. The reaction mixture of claim 1, wherein the blocked nucleic acid molecules are circular.
18. The reaction mixture of claim 1, wherein the blocked nucleic acid molecules are linear.
19. The reaction mixture of claim 1, wherein a Kd of the blocked nucleic acid molecules to the RNP2 is about 105-fold greater or more than the Kd of unblocked nucleic acid molecules.
20. The reaction mixture of claim 1, wherein the RNP2 complex recognizes a PAM sequence.
21. The reaction mixture of claim 1, wherein the RNP2 complex does not recognize a PAM sequence.
22. The reaction mixture of claim 1, wherein the target nucleic acid of interest is of bacterial, viral, fungal, mammalian or plant origin.
23. The reaction mixture of claim 1, further comprising a reporter moiety: wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is operably linked to the blocked nucleic acid molecule that produces a detectable signal upon cleavage by RNP1 and/or RNP2; or wherein the reporter moiety comprises a DNA, RNA or chimeric nucleic acid molecule and is not operably linked to the blocked nucleic acid molecule and produces a detectable signal upon cleavage by RNP1 and/or RNP2.
24. The reaction mixture of claim 23, wherein the detectable signal is produced within about 1-10 minutes upon binding of the target nucleic acid of interest to RNP1.
25. The reaction mixture of claim 24, wherein the detectable signal is a fluorescent, chemiluminescent, radioactive, colorimetric or other optical signal.
26. The reaction mixture of claim 24, wherein the reporter moiety comprises a modified nucleoside or nucleotide.
27. The reaction mixture of claim 26, wherein the modified nucleoside or nucleotide comprises a locked nucleic acid (LNA), peptide nucleic acid (PNA), 2′-O-methyl (2′-O-Me) modified nucleoside, 2′-fluoro (2′-F) modified nucleoside, and/or a phosphorothioate (PS) bond.
28. The reaction mixture of claim 1, wherein the blocked nucleic acid molecule is a blocked primer molecule.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230167487A2 (en) 2021-07-12 2023-06-01 Labsimply, Inc. Crispr cascade assay
WO2023114090A2 (en) 2021-12-13 2023-06-22 Labsimply, Inc. Signal boost cascade assay
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Family Cites Families (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007025281A2 (en) 2005-08-24 2007-03-01 Applera Corporation A method to quantify sirnas, mirnas and polymorphic mirnas
WO2014143228A1 (en) 2013-03-15 2014-09-18 Integrated Dna Technologies, Inc. Rnase h-based assays utilizing modified rna monomers
AU2013202354A1 (en) 2012-06-18 2014-01-16 Speedx Pty Ltd Target detection and signal amplification
KR101503726B1 (en) * 2013-04-30 2015-03-19 (주)진매트릭스 Primer capable of controlling its activity by DNA restriction enzyme, method for amplifying a gene using the same, and method for designing the primer
US11141493B2 (en) * 2014-03-10 2021-10-12 Editas Medicine, Inc. Compositions and methods for treating CEP290-associated disease
WO2016127002A1 (en) * 2015-02-04 2016-08-11 Bristol-Myers Squibb Company Lna oligonucleotides with alternating flanks
WO2016201138A1 (en) 2015-06-12 2016-12-15 The Regents Of The University Of California Reporter cas9 variants and methods of use thereof
US10648020B2 (en) 2015-06-18 2020-05-12 The Broad Institute, Inc. CRISPR enzymes and systems
US9790490B2 (en) 2015-06-18 2017-10-17 The Broad Institute Inc. CRISPR enzymes and systems
CA3012631A1 (en) 2015-06-18 2016-12-22 The Broad Institute Inc. Novel crispr enzymes and systems
US11371087B2 (en) * 2016-06-10 2022-06-28 Takara Bio Usa, Inc. Methods and compositions employing blocked primers
US10337051B2 (en) 2016-06-16 2019-07-02 The Regents Of The University Of California Methods and compositions for detecting a target RNA
WO2018009822A1 (en) 2016-07-08 2018-01-11 Ohio State Innovation Foundation Modified nucleic acids, hybrid guide rnas, and uses thereof
WO2018035250A1 (en) 2016-08-17 2018-02-22 The Broad Institute, Inc. Methods for identifying class 2 crispr-cas systems
US20180282722A1 (en) 2016-11-21 2018-10-04 Massachusetts Institute Of Technology Chimeric DNA:RNA Guide for High Accuracy Cas9 Genome Editing
PL3551753T3 (en) 2016-12-09 2022-10-31 The Broad Institute, Inc. Crispr effector system based diagnostics
US11021740B2 (en) 2017-03-15 2021-06-01 The Broad Institute, Inc. Devices for CRISPR effector system based diagnostics
US11104937B2 (en) 2017-03-15 2021-08-31 The Broad Institute, Inc. CRISPR effector system based diagnostics
US11174515B2 (en) 2017-03-15 2021-11-16 The Broad Institute, Inc. CRISPR effector system based diagnostics
WO2018226575A1 (en) * 2017-06-05 2018-12-13 The Board Of Trustees Of The Leland Stanford Junior University Ribonucleoprotein-based imaging and detection
WO2019010422A1 (en) 2017-07-07 2019-01-10 The Broad Institute, Inc. Crispr system based antiviral therapy
CA3075303A1 (en) 2017-09-09 2019-03-14 The Broad Institute, Inc. Multi-effector crispr based diagnostic systems
US10253365B1 (en) * 2017-11-22 2019-04-09 The Regents Of The University Of California Type V CRISPR/Cas effector proteins for cleaving ssDNAs and detecting target DNAs
WO2019126577A2 (en) 2017-12-22 2019-06-27 The Broad Institute, Inc. Crispr effector system based multiplex diagnostics
US20200392473A1 (en) 2017-12-22 2020-12-17 The Broad Institute, Inc. Novel crispr enzymes and systems
US20210102183A1 (en) * 2018-06-13 2021-04-08 Caribou Biosciences, Inc. Engineered cascade components and cascade complexes
US20210269866A1 (en) 2018-06-26 2021-09-02 The Broad Institute, Inc. Crispr effector system based amplification methods, systems, and diagnostics
EP3830301A1 (en) 2018-08-01 2021-06-09 Mammoth Biosciences, Inc. Programmable nuclease compositions and methods of use thereof
KR20210056329A (en) 2018-08-07 2021-05-18 더 브로드 인스티튜트, 인코퍼레이티드 New CAS12B enzyme and system
EP3844303A4 (en) 2018-08-27 2022-06-01 The Regents of The University of California Reporter nucleic acids for type v crispr-mediated detection
EP3931313A2 (en) 2019-01-04 2022-01-05 Mammoth Biosciences, Inc. Programmable nuclease improvements and compositions and methods for nucleic acid amplification and detection
CA3130488A1 (en) 2019-03-19 2020-09-24 David R. Liu Methods and compositions for editing nucleotide sequences
CA3132320A1 (en) 2019-03-21 2020-09-24 Sherlock Biosciences, Inc. System
WO2021021532A1 (en) 2019-07-26 2021-02-04 Mammoth Biosciences, Inc. Compositions for detection of dna and methods of use thereof
US20220333208A1 (en) 2019-09-03 2022-10-20 The Broad Institute, Inc. Crispr effector system based multiplex cancer diagnostics
US20230086199A1 (en) 2019-11-26 2023-03-23 The Broad Institute, Inc. Systems and methods for evaluating cas9-independent off-target editing of nucleic acids
JP2023519782A (en) 2020-01-17 2023-05-15 ジャンプコード ゲノミクス,インク. Methods of targeted sequencing
EP4153772A1 (en) 2020-05-19 2023-03-29 The Regents of the University of California Compositions and methods of a nuclease chain reaction for nucleic acid detection
WO2021243276A1 (en) 2020-05-29 2021-12-02 University Of Florida Research Foundation Crispr/cas chain reaction systems and methods for amplifying the detection sensitivity of crispr-based target detection
WO2022061166A1 (en) 2020-09-17 2022-03-24 Mammoth Biosciences, Inc. Compositions and methods for detection of a nucleic acid
EP4263821A2 (en) 2020-12-17 2023-10-25 Mammoth Biosciences, Inc. Methods and compositions for performing a detection assay
EP4355909A2 (en) 2021-06-17 2024-04-24 Mammoth Biosciences, Inc. Devices, systems, and methods for analysis of nucleic acids
WO2023278629A1 (en) 2021-06-30 2023-01-05 Mammoth Biosciences, Inc. Crispr quantification
US20230167487A2 (en) 2021-07-12 2023-06-01 Labsimply, Inc. Crispr cascade assay
WO2023015259A2 (en) 2021-08-05 2023-02-09 Mammoth Biosciences, Inc. Methods and compositions for improved snp discrimination
CN114262730A (en) 2021-08-31 2022-04-01 重庆医科大学国际体外诊断研究院 Cas13a and mediator-mediated double-cascade circulation activation amplification-free rapid RNA detection method
WO2023056451A1 (en) 2021-09-30 2023-04-06 Mammoth Biosciences, Inc. Compositions and methods for assaying for and genotyping genetic variations
WO2023081902A1 (en) 2021-11-05 2023-05-11 University Of Florida Research Foundation, Inc. Systems and methods for target polynucleotide detection with crispr/cas12a using activators
WO2023114090A2 (en) 2021-12-13 2023-06-22 Labsimply, Inc. Signal boost cascade assay
WO2023114052A1 (en) 2021-12-13 2023-06-22 Labsimply, Inc. Tuning cascade assay kinetics via molecular design
CN114058679B (en) 2022-01-11 2022-05-20 深圳大学 CRISPR cascade nucleic acid detection system and detection method and application thereof

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