WO2020088450A1 - 新型CRISPR/Cas12f酶和系统 - Google Patents
新型CRISPR/Cas12f酶和系统 Download PDFInfo
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Definitions
- the modified portion is directly connected to the N-terminus or C-terminus of the protein of the present invention.
- the isolated nucleic acid molecule is RNA.
- nucleic acid component comprising the isolated nucleic acid molecule described in the fourth aspect and a targeting sequence capable of hybridizing to a target sequence from the 5 'to 3' direction
- the present invention also provides a composition comprising:
- a second nucleic acid encoding a nucleotide sequence comprising a guide RNA; optionally the second nucleic acid is operably linked to a second regulatory element;
- the target sequence when the target sequence is RNA, the target sequence does not have PAM domain restrictions.
- the present invention also relates to a cell obtained by the method as described above or a progeny thereof, wherein the cell contains a modification that is not present in its wild type.
- the invention also relates to the cell products of the cells or their progeny as described above.
- the cells are stem cells or stem cell lines.
- CRISPR regularly clustered short palindrome repeat
- Cas CRISPR-Cas system
- CRISPR system CRISPR system
- complementarity refers to the ability of a nucleic acid to form one or more hydrogen bonds with another nucleic acid sequence by means of conventional Watson-Crick or other non-traditional types. Percent complementarity indicates the percentage of residues in a nucleic acid molecule that can form hydrogen bonds with a second nucleic acid sequence (eg, Watson-Crick base pairing) (eg, 5, 6, 7, 8 out of 10) , 9, 10 are 50%, 60%, 70%, 80%, 90%, and 100% complementary). "Completely complementary” means that all consecutive residues of a nucleic acid sequence form hydrogen bonds with the same number of consecutive residues in a second nucleic acid sequence.
- substantially complementary refers to having 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, At least 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 97%, 98 on the region of 30, 35, 40, 45, 50 or more nucleotides %, 99%, or 100% degree of complementarity, or refers to two nucleic acids that hybridize under stringent conditions.
- Non-limiting examples of stringent conditions are described in Tijssen (1993) "Laboratory Techniques in Biochemistry and Molecular Biology-Nucleic Acid Probe Hybridization” (Laboratory Techniques in Biochemistry And Molecular Biology-Hybridization With Nuclear Probes) , Part I, Chapter 2, “Overview of Hybridization Principles and Strategies for Analysis of Nucleic Acid Probes” ("Overview of principles” of hybridization and the strategy of acrylic probe "), Elsevier, New York.
- 3a-3c are the results of detection of the cleavage activity of Cas12f.4 in human cell lines in Example 4.
- E. coli competent EC100 was purchased from Epicentre.
- CRISPR-enriched macromolecular protein families using BLASTP to compare proteins of CRISPR-related protein families to non-redundant macromolecular protein databases with CRISPR-related proteins removed, and output the comparison results with Evalue ⁇ 1E-10. If a homologous protein found in a non-CRISPR-related protein database is less than 100%, it means that this family of proteins is enriched in the CRISPR region. In this way, we identify the CRISPR-enriched macromolecular protein family.
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Abstract
Description
SEQ ID NO: | 描述 |
1 | Cas12f.4的氨基酸序列 |
2 | Cas12f.5的氨基酸序列 |
3 | Cas12f.6的氨基酸序列 |
4 | Cas12f.4的编码核酸序列 |
5 | Cas12f.5的编码核酸序列 |
6 | Cas12f.6的编码核酸序列 |
7 | Cas12f.4/原型同向重复序列 |
8 | Cas12f.5/原型同向重复序列 |
9 | Cas12f.6/原型同向重复序列 |
10 | Cas12f.4/原型同向重复序列的编码核酸序列 |
11 | Cas12f.5/原型同向重复序列的编码核酸序列 |
12 | Cas12f.6/原型同向重复序列的编码核酸序列 |
13 | Cas12f.4/成熟同向重复序列 |
14 | Cas12f.5/成熟同向重复序列 |
15 | Cas12f.6/成熟同向重复序列 |
16 | Cas12f.4/成熟同向重复序列的编码核酸序列 |
17 | Cas12f.5/成熟同向重复序列的编码核酸序列 |
18 | Cas12f.6/成熟同向重复序列的编码核酸序列 |
19 | NLS序列 |
20 | Cas12f.4-NLS融合蛋白的氨基酸序列 |
21 | Cas12f.5-NLS融合蛋白的氨基酸序列 |
22 | Cas12f.6-NLS融合蛋白的氨基酸序列 |
23 | 表达Cas12f.4系统的质粒 |
24 | PAM文库序列 |
25 | Cas12f.4系统的导向RNA-VEGFA |
26 | Cas12f.5系统的导向RNA-VEGFA |
27 | Cas12f.6系统的导向RNA-VEGFA |
28 | Cas12f.4系统的导向RNA-PDI1 |
29 | Cas12f.4系统的导向RNA-SBE2.2 |
Claims (50)
- 一种蛋白,其具有SEQ ID NO:1所示的氨基酸序列,或具有与SEQ ID NO:1相比具有至少90%、至少91%、至少92%、至少93%、至少94%、至少95%、至少96%、至少97%、至少98%、或至少99%的序列同一性的氨基酸序列;例如,所述蛋白是CRISPR/Cas系统中的效应蛋白。
- 一种缀合物,其包含权利要求1所述的蛋白以及修饰部分。
- 权利要求2所述的缀合物,其中,所述修饰部分选自另外的蛋白或多肽、可检测的标记,及其任意组合。
- 权利要求2或3所述的缀合物,其中,所述修饰部分任选地通过接头连接至所述蛋白的N端或C端。
- 权利要求2-4任一项所述的缀合物,其中,所述另外的蛋白或多肽选自表位标签、报告基因序列、核定位信号(NLS)序列、靶向部分、转录激活结构域(例如,VP64)、转录抑制结构域(例如,KRAB结构域或SID结构域)、核酸酶结构域(例如,Fok1),具有选自下列的活性的结构域:核苷酸脱氨酶、甲基化酶活性,去甲基化酶,转录激活活性,转录抑制活性,转录释放因子活性,组蛋白修饰活性,核酸酶活性,单链RNA切割活性,双链RNA切割活性,单链DNA切割活性,双链DNA切割活性和核酸结合活性;以及其任意组合。
- 权利要求2-5任一项所述的缀合物,其中,所述缀合物包含表位标签。
- 权利要求2-6任一项所述的缀合物,其中,所述缀合物包含NLS序列;例如,所述NLS序列如SEQ ID NO:19所示;例如,所述NLS序列位于、靠近或接近所述蛋白的末端(例如,N端或C端)。
- 一种融合蛋白,其包含权利要求1所述的蛋白以及另外的蛋白或多肽。
- 权利要求8所述的融合蛋白,其中,所述另外的蛋白或多肽任选地通过接头连接至所述蛋白的N端或C端。
- 权利要求8或9所述的融合蛋白,其中,所述另外的蛋白或多肽选自表位标签、报告基因序列、核定位信号(NLS)序列、靶向部分、转录激活结构域(例如,VP64)、转录抑制结构域(例如,KRAB结构域或SID结构域)、核酸酶结构域(例如,Fok1),具有选自下列的活性的结构域:核苷酸脱氨酶、甲基化酶活性,去甲基化酶,转录激活活性,转录抑制活性,转录释放因子活性,组蛋白修饰活性,核酸酶活性,单链RNA切割活性,双链RNA切割活性,单链DNA切割活性,双链DNA切割活性和核酸结合活性;以及其任意组合。
- 权利要求8-10任一项所述的融合蛋白,其中,所述融合蛋白包含表位标签。
- 权利要求8-11任一项所述的融合蛋白,其中,所述融合蛋白包含NLS序列;例如,所述NLS序列如SEQ ID NO:19所示;例如,所述NLS序列位于、靠近或接近所述蛋白的末端(例如,N端或C端)。
- 权利要求8-12任一项所述的融合蛋白,其中,所述融合蛋白具有SEQ ID NO:20所示的氨基酸序列。
- 一种分离的核酸分子,其包含选自下列的序列,或由选自下列的序列组成:(i)SEQ ID NO:7或13所示的序列;(ii)与SEQ ID NO:7或13所示的序列相比具有一个或多个碱基的置换、缺失或添加(例如1个,2个,3个,4个,5个,6个,7个,8个,9个或10个碱基的置换、缺失或添加)的序列;(iii)与SEQ ID NO:7或13所示的序列具有至少20%、至少30%、至少40%、至少50%、至少60%、至少70%、至少80%、至少90%、至少95%的序列同一性的序列;(iv)在严格条件下与(i)-(iii)任一项中所述的序列杂交的序列;或(v)(i)-(iii)任一项中所述的序列的互补序列;并且,(ii)-(v)中任一项所述的序列基本保留了其所源自的序列的生物学功能;例如,所述分离的核酸分子是RNA;例如,所述分离的核酸分子是CRISPR/Cas系统中的同向重复序列。
- 权利要求14所述的分离的核酸分子,其中,所述核酸分子包含一个或多个茎环或优化的二级结构;例如,(ii)-(v)中任一项所述的序列保留了其所源自的序列的二级结构。
- 权利要求14或15所述的分离的核酸分子,其中,所述核酸分子包含选自下列的序列,或由选自下列的序列组成:(a)SEQ ID NO:7或13所示的核苷酸序列;(b)在严格条件下与(a)中所述的序列杂交的序列;或(c)SEQ ID NO:7或13所示的核苷酸序列的互补序列。
- 一种复合物,其包含:(i)蛋白组分,其选自:权利要求1所述的蛋白、权利要求2-7任一项所述的缀合物、权利要求8-13任一项所述的融合蛋白,及其任意组合;和(ii)核酸组分,其从5’至3’方向包含权利要求14-16任一项所述的分离的核酸分子和能够与靶序列杂交的导向序列,其中,所述蛋白组分与核酸组分相互结合形成复合物;例如,所述核酸组分是CRISPR/Cas系统中的导向RNA;例如,所述核酸分子是RNA;例如,所述复合物不包含反式作用crRNA(tracrRNA)。
- 权利要求17所述的复合物,其中,所述导向序列连接于所述核酸分子的3’端。
- 权利要求17或18所述的复合物,其中,所述导向序列包含所述靶序列的互补序列。
- 一种分离的核酸分子,其包含:(i)编码权利要求1所述的蛋白,或权利要求8-13任一项所述的融合蛋白的核苷酸序列;(ii)编码权利要求14-16任一项所述的分离的核酸分子的核苷酸序列;和/或,(iii)包含(i)和(ii)的核苷酸序列;例如,(i)-(iii)任一项中所述的核苷酸序列经密码子优化用于在原核细胞或真核细胞中进行表达。
- 一种载体,其包含权利要求20所述的分离的核酸分子。
- 一种宿主细胞,其包含权利要求20所述的分离的核酸分子或权利要求21所述的载体。
- 一种组合物,其包含:(i)第一组分,其选自:权利要求1所述的蛋白、权利要求2-7任一项所述的缀合物、权利要求8-13任一项所述的融合蛋白、编码所述蛋白或融合蛋白的核苷酸序列,以及其任意组合;和(ii)第二组分,其为包含导向RNA的核苷酸序列,或者编码所述包含导向RNA的核苷酸序列的核苷酸序列;其中,所述导向RNA从5’至3’方向包含同向重复序列和导向序列,所述导向序列能够与靶序列杂交;所述导向RNA能够与(i)中所述的蛋白、缀合物或融合蛋白形成复合物;所述同向重复序列是权利要求14-16任一项中所定义的分离的核酸分子;例如,所述组合物不包含反式作用crRNA(tracrRNA)。
- 一种组合物,其包含一种或多种载体,所述一种或多种载体包含:(i)第一核酸,其为编码权利要求1所述的蛋白或权利要求8-13任一项所述的融合蛋白的核苷酸序列;任选地所述第一核酸可操作地连接至第一调节元件;以及(ii)第二核酸,其编码包含导向RNA的核苷酸序列;任选地所述第二核酸可操作地连接至第二调节元件;其中:所述第一核酸与第二核酸存在于相同或不同的载体上;所述导向RNA从5’至3’方向包含同向重复序列和导向序列,所述导向序列能够与靶序列杂交;所述导向RNA能够与(i)中所述的效应蛋白或融合蛋白形成复合物;所述同向重复序列是权利要求14-16任一项中所定义的分离的核酸分子;例如,所述组合物不包含反式作用crRNA(tracrRNA)。
- 权利要求24所述的组合物,其中,所述第一调节元件和/或第二调节元件是启动子,例如诱导型启动子。
- 权利要求23-25任一项所述的组合物,其中,所述组合物中的至少一个组分是非天然存在的或经修饰的。
- 权利要求23-26任一项所述的组合物,其中,所述导向序列连接至所述同向重复序列的3’端。
- 权利要求23-27任一项所述的组合物,其中,所述导向序列包含所述靶序列的互补序列。
- 权利要求23-28任一项所述的组合物,其中,当所述靶序列为DNA时,所述靶序列位于原间隔序列临近基序(PAM)的3’端,并且所述PAM具有5’-TTN所示的序列,其中,N选自A、G、T、C;当所述靶序列为RNA时,所述靶序列不具有PAM结构域限制。
- 权利要求23-29任一项所述的组合物,其中,所述靶序列是来自原核细胞或真核细胞的DNA或RNA序列;或者,所述靶序列是非天然存在的DNA或RNA序列。
- 权利要求23-30任一项所述的组合物,其中,所述靶序列存在于细胞内;例如,所述靶序列存在于细胞核内或细胞质(例如,细胞器)内;例如,所述细胞是真核细胞;例如,所述细胞是原核细胞。
- 权利要求23-31任一项所述的组合物,其中,所述蛋白连接有一个或多个NLS序列,或者,所述缀合物或融合蛋白包含一个或多个NLS序列;例如,所述NLS序列连接至所述蛋白的N端或C端;例如,所述NLS序列融合至所述蛋白的N端或C端。
- 一种试剂盒,其包括一种或多种选自下列的组分:权利要求1所述的蛋白、权利要求2-7任一项所述的缀合物、权利要求8-13任一项所述的融合蛋白、权利要求14-16任一项所述的分离的核酸分子、权利要求17-19任一项所述的复合物、权利要求20所述的分离的核酸分子、权利要求21所述的载体、权利要求23-32任一项所述的组合物;例如,所述试剂盒包含权利要求23、26-32任一项所述的组合物,以及使用所述组合物的说明书;例如,所述试剂盒包含权利要求24、25-32任一项所述的组合物,以及使用所述组合物的说明书。
- 一种递送组合物,其包含递送载体,以及选自下列的一种或多种:权利要求1所述的蛋白、权利要求2-7任一项所述的缀合物、权利要求8-13任一项所述的融合蛋白、权利要求14-16任一项所述的分离的核酸分子、权利要求17-19任一项所述的复合物、权利要求20所述的分离的核酸分子、权利要求21所述的载体、权利要求23-32任一项所述的组合物;例如,所述递送载体是粒子;例如,所述递送载体选自脂质颗粒、糖颗粒、金属颗粒、蛋白颗粒、脂质体、外泌体、微泡、基因枪或病毒载体(例如,复制缺陷型逆转录病毒、慢病毒、腺病毒或腺相关病毒)。
- 一种修饰靶基因的方法,其包括:将权利要求17-19任一项所述的复合物或权利要求23-32任一项所述的组合物与所述靶基因接触,或者递送至包含所述靶基因的细胞中;所述靶序列存在于所述靶基因中。
- 权利要求35所述的方法,其中,所述靶基因存在于细胞内;例如,所述细胞是原核细胞;例如,所述细胞是真核细胞,例如哺乳动物细胞(例如人类细胞)或植物细胞。
- 权利要求35所述的方法,其中,所述靶基因存在于体外的核酸分子(例如,质粒)中。
- 权利要求35-37任一项所述的方法,其中,所述修饰是指所述靶序列的断裂,如DNA的双链断裂或RNA的单链断裂;例如,所述修饰还包括将外源核酸插入所述断裂中。
- 一种改变基因产物的表达的方法,其包括:将权利要求17-19任一项所述的复合物或权利要求23-32任一项所述的组合物与编码所述基因产物的核酸分子接触,或者递送至包含所述核酸分子的细胞中,所述靶序列存在于所述核酸分子中。
- 权利要求39所述的方法,其中,所述核酸分子存在于细胞内;例如,所述细胞是原核细胞;例如,所述细胞是真核细胞,例如哺乳动物细胞(例如人类细胞)或植物细胞。
- 权利要求39所述的方法,其中,所述核酸分子存在于体外的核酸分子(例如,质粒)中。
- 权利要求39-41任一项所述的方法,其中,所述基因产物的表达被改变(例如,增强或降低)。
- 权利要求39-42任一项所述的方法,其中,所述基因产物是蛋白。
- 权利要求35-43任一项所述的方法,其中所述的蛋白、缀合物、融合蛋白、分离的核酸分子、复合物、载体或组合物包含于递送载体中;例如,所述递送载体选自脂质颗粒、糖颗粒、金属颗粒、蛋白颗粒、脂质体、外泌 体、病毒载体(如复制缺陷型逆转录病毒、慢病毒、腺病毒或腺相关病毒)。
- 权利要求35-44任一项所述的方法,其用于改变靶基因或编码靶基因产物的核酸分子中的一个或多个靶序列来修饰细胞、细胞系或生物体。
- 一种由权利要求35-45任一项所述的方法获得的细胞或其子代,其中所述细胞包含在其野生型中不存在的修饰。
- 权利要求46所述的细胞或其子代的细胞产物。
- 一种体外的、离体的或体内的细胞或细胞系或它们的子代,所述细胞或细胞系或它们的子代包含:权利要求1所述的蛋白、权利要求2-7任一项所述的缀合物、权利要求8-13任一项所述的融合蛋白、权利要求14-16任一项所述的分离的核酸分子、权利要求17-19任一项所述的复合物、权利要求20所述的分离的核酸分子、权利要求21所述的载体、权利要求23-32任一项所述的组合物;例如,所述细胞是真核细胞;例如,所述细胞是动物细胞(例如,哺乳动物细胞,例如人类细胞)或植物细胞;例如,所述细胞是干细胞或干细胞系。
- 权利要求1所述的蛋白、权利要求2-7任一项所述的缀合物、权利要求8-13任一项所述的融合蛋白、权利要求14-16任一项所述的分离的核酸分子、权利要求17-19任一项所述的复合物、权利要求20所述的分离的核酸分子、权利要求21所述的载体、权利要求23-32任一项所述的组合物或权利要求33所述的试剂盒,用于核酸编辑(例如,基因或基因组编辑)的用途;例如,所述基因或基因组编辑包括修饰基因、敲除基因、改变基因产物的表达、修复突变、和/或插入多核苷酸。
- 权利要求1所述的蛋白、权利要求2-7任一项所述的缀合物、权利要求8-13任一项所述的融合蛋白、权利要求14-16任一项所述的分离的核酸分子、权利要求17-19任一项所述的复合物、权利要求20所述的分离的核酸分子、权利要求21所述的载体、权 利要求23-32任一项所述的组合物或权利要求33所述的试剂盒,在制备制剂中的用途,所述制剂用于:(i)离体基因或基因组编辑;(ii)离体单链DNA的检测;(iii)编辑靶基因座中的靶序列来修饰生物或非人类生物;(iv)治疗由靶基因座中的靶序列的缺陷引起的病症。
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SG11202104347UA (en) | 2021-05-28 |
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CN113136375B (zh) | 2023-01-06 |
CN111757889B (zh) | 2021-05-25 |
AU2019372642A1 (en) | 2021-06-17 |
EP3875469A1 (en) | 2021-09-08 |
CN111757889A (zh) | 2020-10-09 |
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