CN1297998A - Human ubiquitin-protein binding enzyme 70 as one new kind of polypeptide and polynucleotides encoding this polypeptide - Google Patents

Abstract

The present invention discloses a novel polypeptide, human ubiquitin-protein binding enzyme 70, polynucleotides encoding this polypeptide and DNA recombination process to produce the polypeptide. The present invention also discloses the method of applying the polypeptide in treating various diseases, such as malignant tumor, nosohemia, HIV infection, immunological diseases and inflammations. The present invention also discloses the antagonist resisting the polypeptide and its treatment effect. The present invention also discloses the application of the polynucletides encoding this polypeptide.

Description

The polynucleotide of a kind of new polypeptide--HUPL70 and this peptide species of coding

The invention belongs to biological technical field, specifically, the invention describes a kind of new polypeptide--HUPL70, and the polynucleotide sequence of this polypeptide of encoding.The invention still further relates to the preparation method and the application of these polynucleotide and polypeptide.

Cell cycle events is ruly successively generation mutually during along the cycle, is actually specific albumen and occurs and work in the specific time.For reaching this purpose, cell can solve by following approach: the first, modify existing albumen (for example, phosphorylation and dephosphorylation); The second, synthetic new albumen (cycle as cyclin relies on synthetic); The 3rd, the albumen that hydrolysis is unnecessary.

Mammalian cell has two proteolysis approach, and one of them depends on ubiquitin, also is main approach in eukaryotic cell and some bacteriums.

Ubiquitin coupling system (ubiquitin conjugation system, UCS) be eukaryotic cell and the main proteolysis approach of some bacteriums, UCS can decompose improper albumen, regulates a lot of important proteic transformation period of adjusting, thereby regulates as processes such as genetic transcription and cell cycles.UCS plays an important role to some proteic hydrolysis, for example, and mutain, p53, cell surface receptor, transcription regulaton factor or the like.

With the proteic decomposition of ubiquitin bonded four steps are arranged.(Jentsch, S. (1992) Annu.Rev.Genet.26:179-207) the first, ubiquitin (a little heat-stable protein, 76 amino acid) is activated by ubiquitin activating enzyme (E1).The second, the ubiquitin that has been activated further acts on a lot of different ubiquitin binding enzymes (E2).The 3rd, directly or by uiquitin-protease ligase enzyme (E3) ubiquitin is connected on the acceptor lysine residue of target protein at last.The 4th, proteolytic enzyme identification and the above-mentioned binding molecule of hydrolysis, ubiquitin discharges again.

According to the result of Northern hybridization, ubiquitin is found with tumour cell and smoothly expresses in the myocyte tissue, and relevant with the treatment of virus disease.According to existing research, ubiquitin is proved to be the cytotoxicity that can suppress thrombocyte and aerobic metabolism product.Ubiquitin is proved to be at the intravital expression amount of Alzheimer ' s disease patient and raises.(Taddei, N., et al., Neurosci.Lett., 151:158-61 (1993)) some cell surface receptors comprise that lymphocyte bootstrap acceptor, growth hormone receptor, growth factor receptors etc. all are proved to be regulated by ubiquitin.

Uiquitin-protease ligase enzyme (E3) is that many ubiquitin of formation chain is necessary on substrate, and this step helps the proteasome of 26S size and discerns substrate effectively, and the proteoclastic speed of ubiquitin mediation and specificity can also be gone to assemble and be controlled by the ubiquitin chain.When E3 is defined in the E2 enzyme that is combined with ubiquitin and exists on function ubiquitin be given to substrate fully and necessary activity shows that its participates in the final stage of ubiquitinization.Except making things convenient for many ubiquitinization of substrate, E3 also may be the initial source of substrate specificity in the ubiquitin cascade reaction, because found out that E3 can be directly and the substrate combination.

According to existing research, find that it contains two functional domains: about 350 amino acid whose functional domains (hect functional domain) of C-terminal to the E3 protein structure; Another is the functional domain that substrate specificity is arranged.(Mol?Cell?Biol?1999?Jan;19(1):342-52)

Rsp5 is a kind of E3 ubiquitin one protein ligase, and the N-terminal of Rsp5 has 3 WW functional domains and a calcium ion combined function territory.Rsp5 is proved to be the subunit (Rpb1) of the maximum that can be incorporated into the RNA polymerase II, and we know that ultraviolet ray can induce the degraded of Rpb1.According to all experimental results, we believe that the uiquitin-protease ligase enzyme has important effect in dna damage and repair process thereof.(Mol?Cell?Biol?19990ct;19(10):6972-6979);(Mol?Cell?Biol?1999?Jan;19(1):342-52)

PVHL is the representation of VHL tumor suppressor gene, and it plays an important role in the growth of regulation and control people kidney cell, atomization.Discover that pVHL and uiquitin-protease ligase enzyme (E3) have certain similarity, we can infer that the ubiquitin coupling system has adjusting function to the effect of pVHL tumor suppressor gene.(Genes?Dev?1999Jul?15;13(14):1822-33)

According to amino acid homology result relatively, polypeptide of the present invention is accredited as HUPL70 (HUPL70) by deduction, and its homologous protein is the uiquitin-protease ligase enzyme of house mouse, and its albumen number is AF037454.

Because HUPL70's albumen plays an important role in regulating body critical functions such as cell fission and fetal development as mentioned above, and believe and relate to a large amount of albumen in these regulate processes, thereby need to identify HUPL70's albumen of more these processes of participation in this area always, particularly identify this proteic aminoacid sequence.The separation of new HUPL70's protein coding gene also provides the foundation for determining the effect of this albumen under healthy and morbid state.This albumen may constitute the basis of exploitation medical diagnosis on disease and/or curative, and it is very important therefore separating its coding DNA.

An object of the present invention is to provide isolating new polypeptide--the HUPL70 with and fragment, analogue and derivative.

Another object of the present invention provides the polynucleotide of this polypeptide of coding.

Another object of the present invention provides the recombinant vectors of the polynucleotide that contain coding people uiquitin-protease ligase enzyme 7O.

Another object of the present invention provides the genetically engineered host cell of the polynucleotide that contain the HUPL70 that encodes.

Another object of the present invention provides the method for producing the HUPL70.

Another object of the present invention provides at polypeptide of the present invention--HUPL70's antibody.

Another object of the present invention has provided at polypeptide of the present invention--HUPL70's simulated compound, antagonist, agonist, inhibitor.

Another object of the present invention provides the method for the diagnoses and treatment disease relevant unusually with the HUPL70.

The present invention relates to a kind of isolated polypeptide, this polypeptide is the people source, and it comprises: polypeptide or its examples of conservative variations, bioactive fragment or derivative with SEQ ID No.2 aminoacid sequence.Preferably, this polypeptide is the polypeptide with SEQ ID NO:2 aminoacid sequence.

The invention still further relates to a kind of isolating polynucleotide, it comprises a kind of nucleotide sequence or its variant that is selected from down group:

(a) coding has the polynucleotide of the polypeptide of SEQ ID No.2 aminoacid sequence;

(b) with polynucleotide (a) complementary polynucleotide;

(c) with (a) or polynucleotide sequence (b) have the polynucleotide of at least 70% homogeny.

More preferably, the sequence of these polynucleotide is be selected from down group a kind of: the sequence that (a) has 23-1939 position among the SEQ ID NO:1; (b) has the sequence of 1-2682 position among the SEQ ID NO:1.

The present invention relates to a kind of carrier that contains polynucleotide of the present invention, particularly expression vector in addition; The host cell that this carrier of a kind of usefulness is genetically engineered comprises the host cell of conversion, transduction or transfection; A kind of method for preparing polypeptide of the present invention of cultivating described host cell and reclaiming expression product that comprises.

The invention still further relates to a kind of can with polypeptid specificity bonded antibody of the present invention.

The invention still further relates to a kind of simulation, activation, antagonism of screening or suppress the method for the compound of HUPL70's protein-active, it comprises and utilizes polypeptide of the present invention.The invention still further relates to the compound that obtains with this method.

The invention still further relates to a kind of vitro detection and express the relevant disease or the method for disease susceptibility with HUPL70's abnormal protein, comprise the sudden change in polypeptide described in the detection of biological sample or its coded polynucleotide sequence, perhaps the amount or the biological activity of polypeptide of the present invention in the detection of biological sample.

The present invention also relates to a kind of pharmaceutical composition, it contains polypeptide of the present invention or its stand-in, activator, antagonist or inhibitor and pharmaceutically acceptable carrier.

The invention still further relates to polypeptide of the present invention and/or polynucleotide and be used for the treatment of cancer, developmental character disease or immunological disease or other purposes owing to the medicine of HUPL70's disease that abnormal expression causes in preparation.

Others of the present invention are because disclosing of the technology of this paper is conspicuous to those skilled in the art.

The following term of using in this specification sheets and claims has following implication unless stated otherwise:

" nucleotide sequence " is meant oligonucleotide, Nucleotide or polynucleotide and fragment or part, also can refer to genome or synthetic DNA or RNA, and they can be strand or two strands, represent sense strand or antisense strand.Similarly, term " aminoacid sequence " is meant oligopeptides, peptide, polypeptide or protein sequence and fragment or part.When " aminoacid sequence " among the present invention related to a kind of aminoacid sequence of naturally occurring protein molecule, this " polypeptide " or " protein " did not mean that aminoacid sequence are restricted to the complete natural amino acid relevant with described protein molecule.

Protein or polynucleotide " variant " are meant a kind of polynucleotide sequence that has the aminoacid sequence of one or more amino acid or Nucleotide change or encode it.Described change can comprise disappearance, insertion or the replacement of amino acid in aminoacid sequence or the nucleotide sequence or Nucleotide.Variant can have " conservative property " and change, and wherein the amino acid of Ti Huaning has structure or the chemical property similar with original acid, as replacing Isoleucine with leucine.Variant also can have non-conservation and change, as replacing glycine with tryptophane.

" disappearance " is meant the disappearance of in aminoacid sequence or nucleotide sequence one or more amino acid or Nucleotide.

" insertion " or " interpolation " is meant that the change in aminoacid sequence or nucleotide sequence causes comparing the increase of one or more amino acid or Nucleotide with naturally occurring molecule." replacement " is meant by different amino acid or Nucleotide and replaces one or more amino acid or Nucleotide.

" biological activity " is meant the protein of structure, regulation and control or biochemical function with natural molecule.Similarly, term " immunologic competence " be meant natural, reorganization or synthetic protein and fragment thereof in suitable animal or cell, induce specific immune response and with specific antibody bonded ability.

" agonist " is meant when combining with the HUPL70, thereby a kind of this protein that causes changes the molecule of regulating this protein active.Agonist can comprise protein, nucleic acid, carbohydrate or any other can be in conjunction with HUPL70's molecule.

" antagonist " or " inhibition " be meant when combining with the HUPL70, a kind ofly seals or regulate HUPL70's the biologic activity or the molecule of immunologic competence.Antagonist and inhibition can comprise protein, nucleic acid, carbohydrate or any other can be in conjunction with HUPL70's molecule.

" adjusting " is meant that HUPL70's function changes, and comprises the change of the change of the rising of protein active or reduction, binding characteristic and HUPL70's any other biological property, function or immune property.

" pure basically " is meant and is substantially free of natural relative other albumen, lipid, carbohydrate or other material.Those skilled in the art can use the purified technology of protein purifying HUPL70 of standard.Basically pure HUPL70 can produce single master tape on the irreducibility polyacrylamide gel.The purity available amino end acid sequence of HUPL70's polypeptide is analyzed.

" complementary " or " complementation " is meant under salt concn that allows and temperature condition by the natural combination of the polynucleotide of base pairing.For example, sequence " C-T-G-A' ' can combine with complementary sequence " G-A-C-T ".Complementation between two single chain molecules can be part or whole.Complementary degree between the nucleic acid chains has a significant effect for efficient of hybridizing between the nucleic acid chains and intensity.

" homology " is meant the complementary degree, can be portion homologous or complete homology." portion homologous " is meant a kind of part complementary sequence, and it can partly suppress the hybridization of complete complementary sequence and target nucleic acid at least.The inhibition of this hybridization can detect by hybridizing (Southern trace or Northern trace etc.) under the condition that reduces in the severity degree.Basically homologous sequence or hybridization probe can compete and suppress complete homologous sequence and target sequence the condition that reduces of severity degree under combine.This does not mean the conditions permit non-specific binding that the severity degree reduces because the conditional request two sequences that the severity degree reduces mutual be combined into specificity or selectivity interacts.

" homogeny percentage " be meant two or more amino acid or nucleotide sequence relatively in the same or analogous percentage of sequence.The available electron method is measured the homogeny percentage, as passing through MEGALIGN program (Lasergenesoftware package, DNASTAR, Inc., Madison Wis.).The MEGALIGN program can compare two or more sequences (Higgins, D.G. and P.M.Sbarp (1988) Gene 73:237-244) according to diverse ways such as Cluster method.The Cluster method is organized the series arrangement cluster by checking the distance between all pairings with each.Then with each bunch with in pairs or become set of dispense.Homogeny percentage between two aminoacid sequences such as sequence A and the sequence B calculates by following formula:

The residue number of mating between sequence A and the sequence B

100

Interval residue number in the residue number-sequence B of interval in the residue number-sequence A of sequence A

Also can be by the Cluster method or with the homogeny percentage (Hein J., (1990) Methods in emzumology 183:625-645) between known method in this area such as the Jotun Hein mensuration nucleotide sequence.

" similarity " is meant the degree that the identical or conservative property of corresponding position amino-acid residue when arranging contrast between the aminoacid sequence replaces.For example be used for amino acid that conservative property replaces, electronegative amino acid can comprise aspartic acid and L-glutamic acid; Positively charged amino acid can comprise Methionin and arginine; Having uncharged head group has similar hydrophilic amino acid can comprise leucine, Isoleucine and Xie Ansuan; Glycine and L-Ala; L-asparagine and glutamine; Serine and Threonine; Phenylalanine and tyrosine.

" antisense " is meant and specific DNA or RNA sequence complementary nucleotide sequence." antisense strand " is meant and " sense strand " complementary nucleic acid chains.

" derivative " is meant HFP or encodes its chemical modification object of nucleic acid.This chemical modification object can be with alkyl, acyl group or the amino hydrogen atom of replacing.The nucleic acid derivative codified keeps the polypeptide of the main biological characteristics of natural molecule.

" antibody " is meant complete antibody molecule and fragment thereof, as Fa, F (ab ') ₂And Fv, its energy specificity is in conjunction with HUPL70's antigenic determinant.

" humanized antibody " is meant that the aminoacid sequence in non-antigen binding domain territory is replaced and becomes more similar to people's antibody, but still keep original in active antibody.

" isolating " speech refers to material is shifted out among its original environment (for example, if spontaneous its natural surroundings that just refers to).Such as it is exactly not to be separated that spontaneous polynucleotide or polypeptide are present in the Live Animals, but same polynucleotide or polypeptide with some or all in natural system with it the material of coexistence separately be exactly isolating.Such polynucleotide may be the parts of a certain carrier, the part that also possible such polynucleotide or polypeptide are a certain composition.Since carrier or composition are not the compositions of its natural surroundings, they remain isolating.

As used herein, " isolating " are meant that material separates (if natural substance, primal environment promptly is a natural surroundings) from its primal environment.Do not have separation and purification as polynucleotide under the native state in the active somatic cell and polypeptide, but same polynucleotide or polypeptide as from native state with in other materials that exist separately, then for separation and purification.

As used herein, " isolating HUPL70 " is meant that the HUPL70 is substantially free of natural relative other albumen, lipid, carbohydrate or other material.Those skilled in the art can use the purified technology of protein purifying people uiquitin-protease ligase enzyme 7O of standard.Basically pure polypeptide can produce single master tape on non-reduced polyacrylamide gel.The purity of HUPL70's polypeptide can be used amino acid sequence analysis.

The invention provides a kind of new polypeptide--HUPL70, it is made up of the aminoacid sequence shown in the SEQ IDNO:2 basically.Polypeptide of the present invention can be recombinant polypeptide, natural polypeptides, synthetic polypeptide, preferred recombinant polypeptide.Polypeptide of the present invention can be the product of natural purifying, or the product of chemosynthesis, or uses recombinant technology to produce from protokaryon or eucaryon host (for example, bacterium, yeast, higher plant, insect and mammalian cell).The host used according to the recombinant production scheme, polypeptide of the present invention can be glycosylated, maybe can be nonglycosylated.Polypeptide of the present invention also can comprise or not comprise initial methionine residues.

The present invention also comprises HUPL70's fragment, derivative and analogue.As used herein, term " fragment ", " derivative " are meant with " analogue " and keep identical biological function of HUPL70 of the present invention or active polypeptide basically.The fragment of polypeptide of the present invention, derivative or analogue can be: (I) is a kind of like this, wherein one or more amino-acid residues are replaced by conservative or non-conservative amino acid residues (preferably conservative amino acid residues), and the amino acid that replaces can be also can not encoded by genetic codon; Perhaps (II) is a kind of like this, and certain group on wherein one or more amino-acid residues is replaced by other group and comprises substituting group; Perhaps (III) is a kind of like this, and wherein mature polypeptide and another kind of compound (such as the compound that prolongs the polypeptide transformation period, for example polyoxyethylene glycol) merge; Perhaps (IV) is a kind of like this, wherein additional aminoacid sequence is integrated into mature polypeptide and the peptide sequence that forms (as leader sequence or secretion sequence or be used for the sequence or the proteinogen sequence of this polypeptide of purifying) by the elaboration of this paper, such fragment, derivative and analogue are considered within those skilled in the art's ken.

The invention provides isolating nucleic acid (polynucleotide), substantially the polynucleotide that have a polypeptide of SEQ ID NO:2 aminoacid sequence by coding are formed.Polynucleotide sequence of the present invention comprises the nucleotide sequence of SEQ ID NO:1.Polynucleotide of the present invention are to find from the eDNA library of people's fetal brain tissue.The polynucleotide sequence total length that it comprises is 2682 bases, its open reading frame (23-1939) 638 amino acid of having encoded.Find relatively that according to amino acid sequence homologous the uiquitin-protease ligase enzyme of this polypeptide and house mouse has 44% homology, deducibility goes out the similar 26S Proteasome Structure and Function of uiquitin-protease ligase enzyme that this HUPL70 has house mouse.

Polynucleotide of the present invention can be dna form or rna form.Dna form comprises the DNA of eDNA, genomic dna or synthetic.DNA can be strand or double-stranded.DNA can be coding strand or noncoding strand.The coding region sequence of encoding mature polypeptide can be identical with the coding region sequence shown in the SEQ ID NO:1 or the varient of degeneracy.As used herein, " varient of degeneracy " are meant that in the present invention coding has protein or the polypeptide of SEQ ID NO:2, but with the differentiated nucleotide sequence of coding region sequence shown in the SEQ ID NO:1.

The polynucleotide of the mature polypeptide of coding SEQ ID NO:2 comprise: the encoding sequence that has only mature polypeptide; The encoding sequence of mature polypeptide and various additional code sequence; Encoding sequence of mature polypeptide (with optional additional code sequence) and non-coding sequence.

Term " polynucleotide of coded polypeptide " is meant polynucleotide that comprise this polypeptide of encoding and the polynucleotide that comprise additional code and/or non-coding sequence.

The invention still further relates to the varient of foregoing description polynucleotide, its coding has the polypeptide of identical aminoacid sequence or segment, analogue and the derivative of polypeptide with the present invention.The varient of these polynucleotide can be the allelic variant of natural generation or the varient that non-natural takes place.These nucleotide diversity bodies comprise and replace varient, deletion mutation body and insert varient.As known in the art, allelic variant is the replacement form of polynucleotide, and it may be replacement, disappearance or the insertion of one or more Nucleotide, but can be from not changing the function of its encoded polypeptides in fact.

The invention still further relates to and the polynucleotide (have at least 50% between two sequences, preferably have 70% homogeny) of sequence hybridization described above.The present invention be more particularly directed under stringent condition and the interfertile polynucleotide of polynucleotide of the present invention.In the present invention, " stringent condition " is meant: (1) than hybridization under low ionic strength and the comparatively high temps and wash-out, as 0.2 * SSC, and 0.1%SDS, 60 ℃; Or (2) hybridization the time adds and to use denaturing agent, as 5O% (v/v) methane amide, 0.1% calf serum/0.1%Ficoll, 42 ℃ etc.; Or (3) only at the homogeny between the two sequences at least more than 95%, be more preferably 97% and just hybridize when above.And the polypeptide of interfertile polynucleotide encoding has identical biological function and activity with the mature polypeptide shown in the SEQ ID NO:2.

The invention still further relates to nucleic acid fragment with sequence hybridization described above.As used herein, " nucleic acid fragment " length contain 10 Nucleotide at least, better be 20-30 Nucleotide at least, be more preferably 50-60 Nucleotide at least, preferably more than at least 100 Nucleotide.Nucleic acid fragment also can be used for the amplification technique (as PCR) of nucleic acid to determine and/or to separate coding HUPL70's polynucleotide.

Polypeptide among the present invention and polynucleotide preferably provide with isolating form, more preferably are purified to homogeneous.

The special polynucleotide sequence of coding people uiquitin-protease ligase enzyme 7O of the present invention can obtain with several different methods.For example, separate polynucleotide with hybridization technique well known in the art.These technology including, but not limited to: 1) with probe and genome or the hybridization of cDNA library to detect homologous polynucleotide sequence and 2) antibody screening of expression library to be to detect the polynucleotide passage of the clone with common structure feature.

Sequence dna fragment of the present invention also can obtain with following method: 1) separate double chain DNA sequence from genomic dna; 2) the chemical synthesising DNA sequence is to obtain the double-stranded DNA of described polypeptide.

In the above-mentioned method of mentioning, isolation of genomic DNA is least commonly used.The direct chemical of dna sequence dna is synthetic to be the method for often selecting for use.The more frequent method of selecting for use is the separation of cDNA sequence.The standard method that separates interested cDNA is from the donorcells separating mRNA of this gene of high expression level and carries out reverse transcription, forms plasmid or phage cDNA library.Extract the existing multiple proven technique of method of mRNA, test kit also can obtain (Qiagene) from commercial channels.And the construction cDNA library also is usual method (Sambrook, et al., MolecularCloning, A Laboratory Manual, Cold Spring Harbor Laboratory.New York, 1989).Also can obtain the cDNA library of commercial offers, as the different cDNA library of Clontech company.When being used in combination the polymeric enzyme reaction technology, even few expression product also can be cloned.

Available ordinary method is screened gene of the present invention from these cDNA libraries.These methods include, but is not limited to: (1) DNA-DNA or DNA-RNA hybridization; (2) appearance of marker gene function or forfeiture; (3) level of mensuration HUPL70's transcript; (4), detect the protein product of genetic expression by immunological technique or mensuration biologic activity.Aforesaid method can singly be used, but also several different methods combined utilization.

In (1) kind method, hybridizing used probe is and any a part of homology of polynucleotide of the present invention that at least 10 Nucleotide of its length better are at least 30 Nucleotide, are more preferably at least 50 Nucleotide, preferably at least 100 Nucleotide.In addition, within 2000 Nucleotide, preferable is within 1000 Nucleotide to the length of probe usually.Probe used herein is the dna sequence dna of chemosynthesis on the basis of gene order information of the present invention normally.Gene of the present invention itself or fragment are certainly as probe.The mark of dna probe can be used radio isotope, fluorescein or enzyme (as alkaline phosphatase) etc.

In (4) kind method, detect the protein product of HUPL70's genetic expression and can use immunological technique such as Western blotting, radioimmunoprecipitation, enzyme-linked immunosorbent assay (ELISA) etc.

Use method (Saiki, the et al.Science1985 of round pcr DNA amplification/RNA; 230:1350-1354) be optimized for acquisition gene of the present invention.When particularly being difficult to from the library, obtain the cDNA of total length, can preferably use RACE method (the terminal rapid amplifying method of RACE-cDNA), the primer that is used for PCR can suitably be selected according to polynucleotide sequence information of the present invention disclosed herein, and available ordinary method is synthetic.Available ordinary method is as the DNA/RNA fragment by gel electrophoresis separation and purifying amplification.

The gene of the present invention that obtains as mentioned above, perhaps the polynucleotide sequence of various dna fragmentations etc. can with ordinary method such as dideoxy chain termination (Sanger et al.PNAS, 1977,74:5463-5467) measure.This class polynucleotide sequence is measured also available commercial sequencing kit etc.In order to obtain the cDNA sequence of total length, order-checking need be carried out repeatedly.Sometimes need to measure a plurality of clones' cDNA sequence, just can be spliced into the cDNA sequence of total length.

The present invention also relates to comprise the carrier of polynucleotide of the present invention, and with carrier of the present invention or directly with the host cell of HUPL70's encoding sequence through the genetically engineered generation, and the method that produces polypeptide of the present invention through recombinant technology.

Among the present invention, coding HUPL70's polynucleotide sequence can be inserted in the carrier, contains the recombinant vectors of polynucleotide of the present invention with formation.Term " carrier " refers to that bacterial plasmid well known in the art, phage, yeast plasmid, vegetable cell virus, mammalian cell virus are as adenovirus, retrovirus or other carrier.The carrier of Shi Yonging includes but not limited in the present invention: and the expression vector based on the T7 promotor of in bacterium, expressing (Rosenberg, et al.Gene, 1987,56:125); The pMSXND expression vector of in mammalian cell, expressing (Lee and Nathans, J Bio Chem.263:3521,1988) and at the carrier that derives from baculovirus of expressed in insect cells.In a word, as long as can duplicate in host and stablize, any plasmid and carrier may be used to make up recombinant expression vector.A key character of expression vector is to contain replication origin, promotor, marker gene and translational control element usually.

Method well-known to those having ordinary skill in the art can be used to make up the dna sequence dna that contains the HUPL70 that encodes and the expression vector of suitable transcribing/translational control element.These methods comprise (Sambroook, et al.Molecular Cloning, aLaboratory Manual, cold Spring Harbor Laboratory.New York, 1989) such as extracorporeal recombinant DNA technology, DNA synthetic technology, the interior recombinant technologys of body.Described dna sequence dna can effectively be connected on the suitable promotor in the expression vector, and is synthetic to instruct mRNA.The representative example of these promotors has: colibacillary lac or trp promotor; The PL promotor of lambda particles phage; Eukaryotic promoter comprises LTRs and some other known may command gene expression promoter in prokaryotic cell prokaryocyte or eukaryotic cell or its virus of CMV immediate early promoter, HSV thymidine kinase promoter, early stage and late period SV40 promotor, retrovirus.Expression vector also comprises ribosome bind site that translation initiation is used and transcription terminator etc.Inserting enhancer sequence in carrier will make its transcribing in higher eucaryotic cells be enhanced.Enhanser is the cis acting factor that DNA expresses, and nearly 10 to 300 base pairs act on promotor transcribing with enhancing gene usually.Can for example be included in the SV40 enhanser of 100 to 270 base pairs of replication origin side in late period one, at the polyoma enhanser of replication origin side in late period one and adenovirus enhanser etc.

In addition, expression vector preferably comprises one or more selected markers, to be provided for selecting the phenotypic character of transformed host cells, cultivate Tetrahydrofolate dehydrogenase, neomycin resistance and the green fluorescent protein (GFP) of usefulness as eukaryotic cell, or be used for colibacillary tsiklomitsin or amicillin resistance etc.

Persons skilled in the art all know how to select appropriate carriers/transcriptional regulatory element (as promotor, enhanser etc.) and selected marker.

Among the present invention, coding HUPL70's polynucleotide or the recombinant vectors that contains these polynucleotide can transform or transduce into host cell, contain the genetically engineered host cell of these polynucleotide or recombinant vectors with formation.Term " host cell " refers to prokaryotic cell prokaryocyte, as bacterial cell; Or eukaryotic cell such as low, as yeast cell; Or higher eucaryotic cells, as mammalian cell.Representative example has: intestinal bacteria, streptomyces; Bacterial cell such as Salmonella typhimurium; Fungal cell such as yeast; Vegetable cell; Insect cell such as fruit bat S2 or Sf9; Zooblast such as CHO, COS or Bowes melanoma cells etc.

Can carry out with routine techniques well known to those skilled in the art with dna sequence dna of the present invention or the recombinant vectors transformed host cell that contains described dna sequence dna.When the host was prokaryotic organism such as intestinal bacteria, the competent cell that can absorb DNA can be used CaCl in exponential growth after date results ₂Method is handled, and used step is well-known in this area.Alternative is to use MgCl ₂If desired, transforming also the method for available electroporation carries out.When the host is an eukaryote, can select following DNA transfection method for use: coprecipitation of calcium phosphate method, perhaps conventional mechanical method such as microinjection, electroporation, liposome packing etc.

By the recombinant DNA technology of routine, utilize polynucleotide sequence of the present invention to can be used to express or produce HUPL70 (Science, 1984 of reorganization; 224:1431).In general following steps are arranged:

(1). with coding of the present invention people HUPL70's polynucleotide (or varient), or with the recombinant expression vector that contains these polynucleotide proper host cell that transforms or transduce;

(2). in suitable medium, cultivate host cell;

(3). separation, protein purification from substratum or cell.

In step (2), according to used host cell, used substratum can be selected from various conventional substratum in the cultivation.Under the condition that is suitable for the host cell growth, cultivate.After host cell grows into suitable cell density, induce the promotor of selection with suitable method (as temperature transition or chemical induction), cell is cultivated for some time again.

In step (3), recombinant polypeptide can wrap and be expressed or be secreted into the extracellular in cell or on cytolemma.If desired, can utilize its physics, the separating by various separation methods with other characteristic and the albumen of purification of Recombinant of chemistry.These methods are well-known to those skilled in the art.These methods include, but are not limited to: conventional renaturation is handled, protein precipitant is handled (salt analysis method), centrifugal, the broken bacterium of infiltration, the combination of ultrasonication, super centrifugal, sieve chromatography (gel-filtration), adsorption chromatography, ion exchange chromatography, high performance liquid chromatography (HPLC) and other various liquid chromatography (LC) technology and these methods.

The antagonist of polypeptide of the present invention and this polypeptide, agonist and inhibitor can be directly used in disease treatment, for example, can treat malignant tumour, adrenal gland defect, tetter, all kinds of inflammation, HIV infection and immunological disease etc.

Polypeptide of the present invention (HUPL70) is the important component of ubiquitin coupling system, and ubiquitin coupling system (ubiquitin conjugation system, UCS) be eukaryotic cell and the main proteolysis approach of some bacteriums, UCS can decompose improper albumen, regulate a lot of important proteic transformation period of adjusting, thereby regulate as processes such as genetic transcription and cell cycles.UCS plays an important role to some proteic hydrolysis, for example, and mutain, p53, cell surface receptor, transcription regulaton factor or the like.Therefore, polypeptide of the present invention is significant to the main proteolysis of eukaryotic cell and some bacteriums.In addition, polypeptide of the present invention also has important relation with the adjusting of regulation and control, dna damage and the repair process thereof of cell cycle with to the processes such as regulation and control of some tumor suppressor gene.

Polypeptide of the present invention can be used for the diagnosis and the treatment of a lot of diseases, for example, and malignant tumour, endocrine system disease, nervous system disorders, immunological disease, people's acquired immune deficiency syndrome (AIDS) or the like.

Utilize the treatable various tumours of polypeptide of the present invention to comprise: to comprise that epithelium is (as the substrate epithelium, squama shape epithelium, myxocyte or the like), (as fibrous tissue, fatty tissue, cartilaginous tissue, smooth muscle tissue, blood vessel and lymphatic endothelial tissue or the like), hemopoietic tissue is (as the B cell, the T cell, histocyte or the like), central nervous tissue, peripheral nerve tissue, endocrine tissue, gonadal tissue, the tumour in particular tissues (as dental tissue or the like) source, for example, cancer of the stomach, liver cancer, large bowel cancer, mammary cancer, lung cancer, prostate cancer, cervical cancer, carcinoma of the pancreas, esophagus cancer or the like.

Polypeptide of the present invention can be used for treating endocrine system disease, the cause of disease often has disease such as the hyperfunction that is primary in incretory gland or tissue or goes down, be secondary to the cryptorrhea of non-endocrinopathy, hormone receptor is unusual, hormone metabolism is unusual, ectopic hormone (as some non-endocrine tumors excretory hormone), exogenous hormones or the like.This class disease includes but not limited to as follows:

(1) hypothalamus and disease of pituitary gland: diabetes insipidus, precocious puberty, dysdrophia adiposogenitalis, gigantosoma and acromegaly, prolactin is crossed hypercalcinuria (breast-amenorrhoea syndromes of overflowing), hypophysis syndrome, adult's hypopituitarism (Simmonds-Sheehan syndromes), growth hormone deficiency dwarfism, pituitary tumor (prolactinoma);

(2) Tiroidina and disease of parathyroid glands: thyrocele developmental malformation, simple goiter, thyroiditis, hyperthyroidism, hypothyroidism, hyperparathyroidism, hypoparathyroidism;

(3) adrenal gland diseases: adrenocortical hyperfunction such as hypercortisolism (Cushing), primary aldosteronism, adrenocortical insufficiency such as acute hypoadrenocorticism, chronic adrenocortical hypofunction, adrenal tumor, kidney medulla tumour (pheochromocytoma);

(4) stomach and intestine, pancreas islet disease: diabetes, insulinoma, gastrinoma;

(5) ovariopathy: pre-menstrual period nercousness, climacteric, polycystic ovary, ovarian hypoplasia, amenorrhoea;

(6) ball disease: male hypogonadism, male sex's sexual prematurity;

(7) multiple secretion is sick

Polypeptide of the present invention still is a kind of immunomodulator, has immunological enhancement or immunosuppressive action.Polypeptide of the present invention can be used for the treatment of some diseases, and these diseases comprise immunoreactive anergy, or abnormal immune reaction, or the host defend invalid.Polypeptide of the present invention and its antibody also have effect to damage, defective or the imbalance class disease of immuning tissue, particularly for disease of hematopoietic system (as pernicious anemia), tetter (as psoriasis), autoimmune disease (as rheumatoid arthritis), radiation disease and immune lymphocytic generation and adjusting have extremely close relation.

The present invention also provides SCREENED COMPOUND to identify the method that improves (agonist) or check (antagonist) HUPL70's medicament.Agonist improves HUPL70's biological function such as stimulate cellular proliferation, and antagonist prevention disorder such as the various cancer relevant with cell hyperproliferation with treatment.For example, can be in the presence of medicine, the HUPL70 with mark cultivates with mammalian cell or the film preparation of expressing the HUPL70.Measure the medicine raising then or check this interactional ability.

HUPL70's antagonist comprises antibody, compound, acceptor disappearance thing and the analogue etc. that filter out.HUPL70's antagonist can combine and eliminate its function with the HUPL70, or suppresses the generation of this polypeptide, or combines with the avtive spot of this polypeptide and to make this polypeptide can not bring into play biological function.

In screening during as the compound of antagonist, the HUPL70 can be added during bioanalysis measures, by measuring compound interactional influence between HUPL70 and its acceptor is determined whether compound is antagonist.With the same quadrat method of above-mentioned SCREENED COMPOUND, can filter out the acceptor disappearance thing and the analogue of antagonist action.Can be incorporated into the rondom polypeptide storehouse that solid formation forms by the various amino acid that may make up by screening with HUPL70's bonded peptide molecule obtains.During screening, generally tackle HUPL70's molecule and carry out mark.

The invention provides and use polypeptide, and fragment, derivative, analogue or their cell are as the method for antigen with production antibody.These antibody can be polyclonal antibody or monoclonal antibody.The present invention also provides the antibody at the HUPL70 antigenic determinant.These antibody include, but is not limited to: the fragment that polyclonal antibody, monoclonal antibody, chimeric antibody, single-chain antibody, Fab fragment and Fab expression library produce.

The method of the available HUPL70's direct injection of the production of polyclonal antibody immune animal (as rabbit, mouse, rat etc.) obtains, and multiple adjuvant can be used for the enhancing immunity reaction, includes but not limited to freund's adjuvant etc.Preparation HUPL70's the technology of monoclonal antibody include but not limited to hybridoma technology (Kohler and Milstein.Nature, 1975,256:495-497), three knurl technology, people B-quadroma technology, EBV-hybridoma technology etc.With the variable region bonded chimeric antibody in human constant region and inhuman source can with existing technology production (Morrison et al, PNAS, 1985,81:6851).And the technology of existing manufacture order chain antibody (U.S.Pat No.4946778) also can be used for producing anti-HUPL70's single-chain antibody.

Anti-HUPL70's antibody can be used in the immunohistochemistry technology, detects the HUPL70 in the biopsy specimen.

With the also available labelled with radioisotope of HUPL70's bonded monoclonal antibody, inject in the body and can follow the tracks of its position and distribution.This radiolabeled antibody can be used as a kind of atraumatic diagnostic method and is used for the location of tumour cell and has judged whether transfer.

Antibody also can be used for designing the immunotoxin at a certain privileged sites in the body.As the monoclonal antibody of HUPL70's high-affinity can with bacterium or plant poison (as diphtheria toxin, ricin, abrine etc.) covalent attachment.A kind of usual method is with sulfydryl linking agent such as SPDP, attacks the amino of antibody, by the exchange of disulfide linkage, toxin is incorporated on the antibody, and this hybrid antibody can be used for killing HUPL70's positive cells.

The disease that antibody among the present invention can be used for treating or prevention is relevant with the HUPL70.The antibody that gives suitable dosage can stimulate or block HUPL70's generation or activity.

The invention still further relates to the diagnostic testing process of quantitative and detection and localization HUPL70 level.These tests are known in the art, and comprise that FISH measures and radioimmunoassay.The HUPL70's level that is detected in the test can be with laying down a definition the importance of HUPL70 in various diseases and be used to the disease of diagnosing the HUPL70 to work.

Polypeptide of the present invention also can be used as the peptide spectrum analysis, for example, the polypeptide available physical, chemistry or enzyme carry out the specificity cutting, and carries out the two-dimentional or three-dimensional gel electrophoresis analysis of one dimension, be more preferably and carry out mass spectroscopy.

Coding HUPL70's polynucleotide also can be used for multiple therapeutic purpose.Gene therapy technology can be used for treating because cell proliferation, growth or the metabolic disturbance due to HUPL70's nothing expression or the unusual/non-activity expression.The gene therapy vector (as virus vector) of reorganization can be designed for the HUPL70 who expresses variation, to suppress endogenic HUPL70's activity.For example, a kind of HUPL70 of variation can be the HUPL70 who shortens, lacked signal conduction function territory, though can combine with the substrate in downstream, lacks signaling activity.Therefore the gene therapy vector of reorganization can be used for treating the disease of HUPL70's expression or active caused by abnormal.Deriving from viral expression vector such as retrovirus, adenovirus, adeno-associated virus (AAV), hsv, parvovirus etc. can be used for coding HUPL70's polynucleotide are transferred in the cell.The method of recombinant viral vector that structure carries coding HUPL70's polynucleotide is found in existing document (Sambrook, et al.).Reorganization coding HUPL70's polynucleotide can be packaged in the liposome and be transferred in the cell in addition.

Polynucleotide import tissue or intracellular method comprises: directly be injected into polynucleotide in the in-vivo tissue; Or external by carrier (as virus, phage or plasmid etc.) earlier with the polynucleotide transfered cell in, again cell is transplanted in the body etc.

Suppress the oligonucleotide (comprising sense-rna and DNA) of HUPL70 mRNA and ribozyme also within the scope of the invention.Ribozyme is the enzyme sample RNA molecule that a kind of energy specificity is decomposed specific RNA, and its mechanism of action is to carry out the endonuclease effect after ribozyme molecule and the hybridization of complementary target RNA-specific.The RNA of antisense and DNA and ribozyme can obtain with existing any RNA or DNA synthetic technology, as the technology widespread use of solid phase phosphoamide chemical synthesis synthetic oligonucleotide.Antisense rna molecule can be transcribed acquisition by the dna sequence dna of this RNA that encodes in external or body.This dna sequence dna has been incorporated into the downstream of rna polymerase promoter of carrier.In order to increase the stability of nucleic acid molecule, available several different methods is modified it, and as increasing the sequence length of both sides, the connection between the ribonucleoside is used phosphoric acid thioester bond or peptide bond but not phosphodiester bond.

Coding HUPL70's polynucleotide can be used for the diagnosis with HUPL70's relative disease.The expression that coding HUPL70's polynucleotide can be used for detecting HUPL70 HUPL70's whether or under morbid state unconventionality expression.As the HUPL70's that encodes dna sequence dna can be used for biopsy specimen is hybridized to judge HUPL70's expression situation.Hybridization technique comprises the Southern blotting, Northern blotting, in situ hybridization etc.These technological methods all are disclosed mature technologies, and relevant test kit all can obtain from commercial channels.Part or all of polynucleotide of the present invention can be used as probe stationary on microarray (Microarray) or DNA chip (being called " gene chip " again), is used for analyzing the differential expression analysis and the gene diagnosis of tissue gene.Carry out the transcription product that RNA-polymerase chain reaction (RT-PCR) amplification in vitro also can detect the HUPL70 with the special primer of HUPL70.

The sudden change that detects HUPL70's gene also can be used for the disease of diagnosing the HUPL70 to be correlated with.The form of HUPL70 sudden change comprises that the point mutation compared with normal wild type HUPL70 dna sequence dna, transposition, disappearance, reorganization and other are any unusual etc.Available existing technology such as Southern blotting, dna sequence analysis, PCR and in situ hybridization detect sudden change.In addition, sudden change might influence proteic expression, therefore can judge indirectly that with Northern blotting, Western blotting gene has or not sudden change.

Sequence of the present invention identifies it also is valuable to karyomit(e).This sequence can be specifically at certain bar human chromosome particular location and and can with its hybridization.At present, need to identify the concrete site of each gene on the karyomit(e).Now, have only chromosomal marker thing seldom to can be used for the marker chromosomes position based on actual sequence data (repetition polymorphism).According to the present invention, for these sequences are associated with disease related gene, its important the first step is positioned these dna sequence dnas on the karyomit(e) exactly.

In brief, prepare PCR primer (preferred 15-35bp), sequence can be positioned on the karyomit(e) according to cDNA.Then, these primers are used for the somatocyte hybrid cell that the PCR screening contains each bar human chromosome.Have only those hybrid cells that contain corresponding to the people's gene of primer can produce the fragment of amplification.

The PCR localization method of somatocyte hybrid cell is that DNA is navigated to concrete chromosomal quick method.Use Oligonucleolide primers of the present invention,, can utilize one group to realize inferior location from specific chromosomal fragment or a large amount of genomic clone by similar approach.Other the similar strategy that can be used for chromosomal localization comprises in situ hybridization, uses the karyomit(e) prescreen and the hybridization preliminary election of the airflow classification of mark, thereby makes up the special cDNA storehouse of karyomit(e).

The cDNA clone is carried out fluorescence in situ hybridization (FISH) with Metaphase Chromosome, can in a step, accurately carry out chromosomal localization.The summary of this technology is referring to Verma etc., Human Chromosomes:a Manualof Basic Techniques, Pergamon Press, New York (1988).

In case sequence is positioned to chromosome position accurately, the physical location of this sequence on karyomit(e) just can be associated with the gene map data.These data for example are found in, V.Mckusick, MendelianInheritance in Man (can by with the online acquisition of Johns Hopkins Univer sity Welch Medical Library).Can pass through linkage analysis then, determine gene and navigated to relation between the disease on the chromosomal region already.

Then, need to measure ill and not cDNA between diseased individuals or genome sequence difference.If observe certain sudden change in some or all of diseased individuals, and this sudden change is not observed in any normal individual, then this sudden change may be the cause of disease of disease.More ill and diseased individuals not is usually directed at first seek the variation of structure in the karyomit(e), as from the horizontal visible of karyomit(e) or use based on detectable disappearance of the PCR of cDNA sequence or transposition.Resolving power according to present physical mapping and assignment of genes gene mapping technology, being accurately positioned to the cDNA of the chromosomal region relevant with disease, can be a kind of (the supposing that 1 megabasse mapping resolving power and every 20kb are corresponding to a gene) between 50 to 500 potential Disease-causing genes.

Polypeptide of the present invention, polynucleotide and stand-in thereof, agonist, antagonist and inhibitor and suitable pharmaceutical carrier combination back can be used.These carriers can be water, glucose, ethanol, salt, damping fluid, glycerine and their combination.Composition comprises the polypeptide or the antagonist of safe and effective amount and carrier and the vehicle that does not influence effect of drugs.These compositions can be used as medicine and are used for disease treatment.

The present invention also provides medicine box or the test kit that contains one or more containers, and one or more medicinal compositions compositions of the present invention are housed in the container.With these containers, can have by the given indicative prompting of government authorities of making, using or selling medicine or biological products, the government authorities that this prompting reflects production, uses or sells permits it to use on human body.In addition, polypeptide of the present invention can be used in combination with other treatment compound.

Pharmaceutical composition can be with mode administration easily, as by in part, intravenously, intraperitoneal, intramuscular, subcutaneous, the nose or the route of administration of intracutaneous.The HUPL70 comes administration with the amount that treats and/or prevents concrete indication effectively.The amount and the dosage range that are applied to patient's HUPL70 will depend on many factors, as administering mode, person's to be treated healthiness condition and diagnostician's judgement.

Following accompanying drawing is used to illustrate specific embodiments of the present invention, and is not used in qualification by the scope of the invention that claims defined.

Fig. 1 is the amino acid sequence homology comparison diagram of the uiquitin-protease ligase enzyme of HUPL70 of the present invention and house mouse.The top sequence is the HUPL70, and the below sequence is the uiquitin-protease ligase enzyme of house mouse.Same amino acid represents with monocase amino acid that between two sequences similar amino acid is represented with "+".

Fig. 2 is proteinic molecular weight for isolating HUPL70's polyacrylamide gel electrophoresis figure (SDS-PAGE) 70kDa.The arrow indication is isolated protein band.

{ embodiment }

Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.The experimental technique of unreceipted actual conditions in the following example, usually according to people such as normal condition such as Sambrook, molecular cloning: laboratory manual (New York:ColdSpring Harbor Laboratory Press, 1989) condition described in, or the condition of advising according to manufacturer.Embodiment 1: HUPL70's clone

Extract the total RNA of people's tire brain with guanidinium isothiocyanate/phenol/chloroform single stage method.From total RNA, separate poly (A) mRNA with Quik mRNA Isolation Kit (Qiegene company product).2ug poly (A) mRNA forms cDNA through reverse transcription.CDNA fragment orientation is inserted on the multiple clone site of pBSK (+) carrier (Clontech company product) with Smart cDNA clone's test kit (available from Clontech), transforms DH5 α, bacterium forms the cDNA library.Measure all clones' 5 ' and 3 ' terminal sequence with Dyeterminate cycle reaction sequencing kit (Perkin-Elmer company product) and ABI 377 automatic sequencers (Perkin-Elmer company).CDNA sequence and the existing public dna sequence data storehouse (Genebank) measured are compared, found that the cDNA sequence of one of them clone 0969D10 is new DNA.By synthetic a series of primers the contained insertion cDNA fragment of this clone is carried out two-way mensuration.The result shows, the contained full-length cDNA of 0969D10 clone is 2682bp (shown in Seq ID NO:1), from 23bp to 1939bp the open reading frame (ORF) of a 1917bp, the new protein (shown in Seq ID NO:2) of encoding arranged.We are with this clone's called after pBS-0969D10, encoded protein matter called after HUPL70.Embodiment 2:cDNA clone's homology retrieval

With HUPL70's of the present invention sequence and encoded protein sequence thereof, with Blast program (Basiclocal Alignment search tool) [Altschul, SF et al.J.Mol.Biol.1990; 215:403-10], carry out the homology retrieval at databases such as Genbank, Swissport.The gene the highest with HUPL70's homology of the present invention is the uiquitin-protease ligase enzyme of a kind of known house mouse, and its encoded protein number is AF037454 in the access of Cenbank.Protein homology the results are shown in Fig. 1, both height homologies, and its homogeny is 44%; Similarity is 64%.Embodiment 3: with RT-PCR method clones coding HUPL70's gene

Total RNA is a template with fetus brain cell, is that primer carries out the synthetic cDNA of reverse transcription reaction with oligo-dT, with behind the test kit purifying of Qiagene, carries out pcr amplification with following primer:

Primer1:5’-GAATGAAGACCTCCGAGAAAACATG-3’(SEQ?ID?NO:3)

Primer2:5’-GGTGGTAAAATACATTTTAATTTTA-3’(SEQ?ID?NO:4)

Primer1 is the forward sequence that begins of lbp that is positioned at the 5 ' end of SEQ ID NO:1;

Primer2 be SEQ ID NO:1 in 3 ' end reverse sequence.

The condition of amplified reaction: in the reaction volume of 50 μ l, contain 50mmol/L KCl, l0mmol/L Tris-Cl, (pH8.5), 1.5mmol/L MgCl ₂, 200 μ mol/L dNTP, 10pmol primer, the Taq archaeal dna polymerase of 1U (Clontech company product).Go up by 25 cycles of following conditioned response at PE9600 type DNA thermal cycler (Perkin-Elmer company): 94 ℃ of 30sec; 55 ℃ of 30sec; 72 ℃ of 2min.When RT-PCR, establish the blank negative contrast of positive contrast of β-actin and template simultaneously.Amplified production is connected to (Invit rogen company product) on the pCR carrier with the test kit purifying of QIAGEN company with TA clone test kit.The dna sequence analysis result shows that the dna sequence dna of PCR product and the 1-2682bp shown in the SEQ ID NO:1 are identical.Embodiment 4:Northern blotting is analyzed HUPL70's expression of gene:

Extract total RNA[Anal.Biochem 1987,162,156-159 with single stage method].This method comprises acid guanidine thiocyanate phenol-chloroform extracting.Promptly use 4M guanidinium isothiocyanate-25mM Trisodium Citrate, 0.2M sodium acetate (pH4.0) carries out homogenate to tissue, adds the phenol of 1 times of volume and the chloroform-primary isoamyl alcohol (49: 1) of 1/5 volume, and is centrifugal after mixing.The sucking-off aqueous phase layer adds Virahol (0.8 volume) and with the centrifugal RNA precipitation that obtains of mixture.With RNA precipitation 70% washing with alcohol that obtains, dry and soluble in water.With 20 μ g RNA, on 1.2% sepharose that contains 20mM 3-(N-morpholino) propanesulfonic acid (pH7.0)-5mM sodium acetate-lmM EDTA-2.2M formaldehyde, carry out electrophoresis.Be transferred on the nitrocellulose filter then.With α- ³²P dATP prepares by random priming ³²The dna probe of P-mark.Used dna probe is HUPL70's coding region sequence (23bp to 1939bp) of pcr amplification shown in Figure 1.Probe (about 2 * 10 with the 32P-mark ⁶Cpm/ml) spend the night in 42 ℃ of hybridization in a solution with the nitrocellulose filter that has shifted RNA, this solution comprises 50% methane amide-25mM KH ₂PO ₄(pH7.4)-5 * SSC-5 * Denhardt ' s solution and 200 μ g/ml salmon sperm DNAs.After the hybridization, filter membrane is washed 30min in 55 ℃ in 1 * SSC-0.1%SDS.Then, analyze with quantitative with Phosphor Imager.Embodiment 5: reorganization HUPL70's vivoexpression, separation and purifying

According to SEQ ID NO:1 and coding region sequence shown in Figure 1, design a pair of specificity amplification primer, sequence is as follows:

Primer3:5’-CATGCTAGCATGTTACGGCAAGTTCTGGAGCAT-3’?(Seq?ID?No:5)

Primer4:5’-CATGGATCCTTATGCCATTGTGTAACCATAGCTG-3’(Seq?ID?No:6)

5 ' end of these two sections primers contains Nhe I and BamH I restriction enzyme site respectively, be respectively the encoding sequence of target gene 5 ' end and 3 ' end thereafter, Nhe I and BamH I restriction enzyme site are corresponding to expression vector plasmid pET-28b (+) (Novagen company product, Cat.No.69865.3) the selectivity restriction enzyme site on.With the pBS-0969D10 plasmid that contains the total length goal gene is template, carries out the PCR reaction.The PCR reaction conditions is: contain pBS-0969D10 plasmid 10pg, primer Primer-3 and Primer-4 among the cumulative volume 50 μ l and be respectively 10pmol, Advantage polymerase Mix (Clontech company product) 1 μ l.Loop parameter: 94 ℃ of 20s, 60 ℃ of 30s, 68 ℃ of 2min, totally 25 circulations.Respectively amplified production and plasmid pET-28 (+) are carried out double digestion with Nhe I and BamH I, reclaim big fragment respectively, and connect with the T4 ligase enzyme.Connect product and transform, after the dull and stereotyped overnight incubation of the LB that contains kantlex (final concentration 30 μ g/ml), use the colony polymerase chain reaction (PCR) method screening positive clone, and check order with the big enterobacterial DH5 of Calcium Chloride Method α.Select the correct positive colony of sequence (pET-0969D10) with Calcium Chloride Method with recombinant plasmid transformed e. coli bl21 (DE3) plySs (Novagen company product).In the LB liquid nutrient medium that contains kantlex (final concentration 30 μ g/ml), host bacterium BL21 (pET-0969D10) is cultured to logarithmic phase at 37 ℃, adds IPTG to final concentration 1mmol/L, continues to cultivate 5 hours.Centrifugal collection thalline, through the broken bacterium of ultrasonic wave, centrifugal collection supernatant with carrying out chromatography with 6 Histidines (6His-Tag) bonded affinity column His.Bind Quick Cartridge (Novagen company product), has obtained the target protein HUPL70 of purifying.Through the SDS-PAGE electrophoresis, obtain a single band (Fig. 2) at the 70kDa place.This band is transferred on the pvdf membrane carries out the n terminal amino acid sequential analysis with the Edams hydrolysis method, 15 amino acid of N-end hold 15 amino-acid residues identical with the N-shown in the SEQ ID NO:2 as a result.Embodiment 6 anti-HUPL70's production of antibodies

With the synthetic specific polypeptide of following HUPL70: the NH of Peptide synthesizer (PE company product) ₂-Met-Leu-Arg-Gln-Val-Leu-Glu-Hi s-Leu-Ser-Gln-Gln-Ser-Glu-Ser-COOH (SEQ ID NO:7).

Form compoundly with hemocyanin and bovine serum albumin coupling this polypeptide respectively, method is referring to Avrameas, etal.Immunochemistry, 1969; 6:43.Add the complete Freund's adjuvant immunizing rabbit with the above-mentioned hemocyanin polypeptide complex of 4mg, add the incomplete Freund's adjuvant booster immunization once with the hemocyanin polypeptide complex again after 15 days.Employing is done the titre that ELISA measures antibody in the rabbit anteserum through the titer plate of 15 μ g/ml bovine serum albumin polypeptide complex bag quilts.From the rabbit anteserum of antibody positive, separate total IgG with albumin A-Sepharose.Polypeptide is incorporated on the Sepharose4B post of cyanogen bromide-activated, from total IgG, separates anti-peptide antibody with affinity chromatography.Immuno-precipitation proof antibody purified can combine with the HUPL70 specifically.

Sequence table (1) general information:

(ⅱ) denomination of invention: HUPL70 and encoding sequence thereof

(ⅲ) sequence number: the information of 7 (2) SEQ ID NO:1:

(ⅰ) sequence signature:

(A) length: 2682bp

(B) type: nucleic acid

(C) chain: two strands

(D) topological framework: linearity

(ⅱ) molecule type: cDNA

( ⅹⅰ ) ：SEQ ID NO:1: 1 GAATGAAGACCTCCGAGAAAACATGTTACGGCAAGTTCTGGAGCATTTGTCTCAGCAAAG 61 TGAAAGCCAGTACCTAAAGATTCTAACAAGCCTTGCTGAAGTTGCTACAACAAATGGTCA121 TAAACTGCTTAGCCTCTCTAGCAATTATGATGCTCAAATGAAGAGCCTTTTAAGGATTGT181 GAGAATGTTTTGTCACGTCTTTCGAATTGGTCCATCCTCCCCCAGTAATGGAATTGATAT241 GGGCTACAATGGGAATAAAACTCCAAGAAGCCAGGTGTTCAAGCCTCTGGAATTGCTTTG301 GCACTCGTTAGATGAATGGCTAGTTTTAATAGCCACAGAATTGATGAAAAACAAAAGAGA361 CTCAACAGAGATCACTTCTATTTTACTGAAACAAAAAGGCCAAGATCAAGATGCTGCTTC421 CATTCCTCCATTTGAACCTCCAGGACCTGGGAGCTATGAAAATCTGTCCACTGGCACAAG481 GGAATCTAAACCAGATGCTCTTGCAGGGAGACAGGAAGCCAGTGCAGATTGTCAGGATGT541 TATTTCTATGACAGCTAACCGGCTAAGTGCTGTCATTCAAGCTTTTTACATGTGCTGTTC601 TTGTCAGATGCCTCCGGGAATGACTTCACCTCGTTTCATTGAATTTGTCTGCAAACATGA 661 TGAAGTTTTAAAATGCTTTGTTAATAGAAATCCCAAAATTATATTTGACCACTTTCACTT 721 TCTCCTTGAATGTCCTGAGTTGATGTCAAGATTCATGCATATCATAAAAGCACAGCCTTT 781 TAAAGATCGCTGTGAATGGTTCTATGAACATTTGCATTCAGGACAGCCAGATTCAGATAT 841 GGTGCACAGGCCAGTGAATGAAAATGATATCCTGCTGGTTCACAGAGATTCTATTTTTAG 901 GAGTAGCTGTGAAGTTGTGTCAAAAGCAAATTGTGCAAAGCTAAAGCAAGGGATTGCTGT 961 ACGGTTCCATGGAGAAGAAGGCATGGGTCAAGGTGTTGTGCGTGAGTGGTTTGATATTCT1021 GTCCAATGAGATAGTCAATCCTGATTATGCATTGTTTACCCAGTCAGCTGATGGAACAAC1081 TTTTCAGCCTAATAGCAACTCTTATGTAAATCCTGATCACTTGAACTATTTTCGGTTTGC1141 TGGGCAGATCTTGGGATTAGCGTTGAACCACAGGCAGCTGGTCAATATTTACTTCACACG1201 ATCCTTCTACAAGCACATTCTTGGTATTCCTGTAAATTACCAAGATGTGGCATCCATTGA1261 TCCAGAATATGCGAAAAATTTGCAATGGATTTTAGATAATGATATAAGTGATCCGGGTCT1321 AGAACTAACTTTTTCTGTTGAGACTGATGTGTTTGGAGCAATGGAAGAGGTGCCTTTGAA1381 ACCTGGGGGTGGGAGTATTCTTGTGACACAAAATAATAAAGCGGAGTACGTCCAGCTTGT1441 TACTGAACTTCGAATGACAAGAGCCATTCAGCCTCAGATCAATGCTTTTTTACAGGGCTT1501 TCATATGTTCATTCCACCCTCCCTCATACAGCTTTTTGATGAATATGAATTGGAGCTACT1561 GCTTTCTGGCATGCCAGAAATTGATGTGAGTGATTGGATAAAAAATACAGAATACACAAG1621 TGGCTATGAAAGAGAAGATCCAGTTATTCAGTGGTTCTGGGAAGTTGTAGAAGACATTAC1681 TCAAGAGGAGAGAGTTCTTCTCTTACAGTTTGTTACGGGCAGTTCCAGGGTCCCACATGG1741 TGGGTTTGCTAATATCATGGGTGGAAGTGGATTGCAAAACTTTACAATCGCTGCTGTGCC1801 ATATACTCCAAATCTTTTACCAACTTCAAGCACATGCATCAACATGCTCAAGTTACCTGA1861 ATACCCAAGTAAAGAAATACTCAAGGACAGACTTCTTGTGGCACTACATTGTGGCAGCTA1921 TGGTTACACAATGGCATAATGAAGTCTGGAAAACTCCTCTGACTACTGATGCACAATTCA1981 GAATGGCAGAAGTAATTTGGGAAAATGTCAACAAAAAAGCAGCCTAAATGCAACCCATAG2041 GCAGGGCTGATGCTTCCAATTTATAAAGGATCATCAGGTTTTCTGTTTCTCTCTTTTCCC2101 TTTTATGTTTTCTCTGTTTGTGATACAATTAGAAAATATAAAATCACAGTAGATTTTATT2161 TTTTAAAATGCTAACTGAAAGTAATAGAGACTGTCCTTTTTCATAATTAATTTTATCCAA2221 GATTGTATTAAGGCAAAATCTGATTCTACATTCCACCTCTGCTATGTAACTGTCTTGTTA2281 AAAGGGTGTTTTCTCCTAATTTCTGATATATTATATGAGGTCATCCAGCTGGTGTGTTCT2341 TTTGCATGTAAACTGCCATTTATATTTTAGAAAACTATTGTATAGAATGGATTTAGATTG2401 TCTATAAAGCCACAAATACGTATTTTGCCACAGTGTATTCTATATTGCAATGATTTTTTT2461 AGCATTTTAATATTTTAATATATATTGTAAAATTTAGACTGATGATACTAACAGTTGATG2521 AAATGACATATAATTTATATATGAAAGCTTACGCTATATTGTATGAATTATTTGCATCTT2581 TCAGTGGCCAGTTTTCCATATGTATATATTATGGTCTCAATGTTTTTCTTACGCCTCATT2641 TTAATTTATAATGAAGGTAAAATTAAAATGTATTTTACCACG

(3) information of SEQ ID NO:2:

(ⅰ) sequence signature:

(A) length: 638 amino acid

(B) type: amino acid

(D) topological framework: linearity

(ⅱ) molecule type: polypeptide

( ⅹⅰ ) ：SEQ ID NO:2: 1 Met Leu Arg Gln Val Leu Glu His Leu Ser Gln Gln Ser Glu Ser 16 Gln Tyr Leu Lys Ile Leu Thr Ser Leu Ala Glu Val Ala Thr Thr 31 Asn Gly His Lys Leu Leu Ser Leu Ser Ser Asn Tyr Asp Ala Gln 46 Met Lys Ser Leu Leu Arg Ile Val Arg Met Phe Cys His Val Phe 61 Arg Ile Gly Pro Ser Ser Pro Ser Asn Gly Ile Asp Met Gly Tyr 76 Asn Gly Asn Lys Thr Pro Arg Ser Gln Val Phe Lys Pro Leu Glu 91 Leu Leu Trp His Ser Leu Asp Glu Trp Leu Val Leu Ile Ala Thr106 Glu Leu Met Lys Asn Lys Arg Asp Ser Thr Glu Ile Thr Ser Ile121 Leu Leu Lys Gln Lys Gly Gln Asp Gln Asp Ala Ala Ser Ile Pro136 Pro Phe Glu Pro Pro Gly Pro Gly Ser Tyr Glu Asn Leu Ser Thr151 Gly Thr Arg Glu Ser Lys Pro Asp Ala Leu Ala Gly Arg Gln Glu166 Ala Ser Ala Asp Cys Gln Asp Val Ile Ser Met Thr Ala Asn Arg181 Leu Ser Ala Val Ile Gln Ala Phe Tyr Met Cys Cys Ser Cys Gln196 Met Pro Pro Gly Met Thr Ser Pro Arg Phe Ile Glu Phe Val Cys211 Lys His Asp Glu Val Leu Lys Cys Phe Val Asn Arg Asn Pro Lys226 Ile Ile Phe Asp His Phe His Phe Leu Leu Glu Cys Pro Glu Leu241 Met Ser Arg Phe Met His Ile Ile Lys Ala Gln Pro Phe Lys Asp256 Arg Cys Glu Trp Phe Tyr Glu His Leu His Ser Gly Gln Pro Asp271 Ser Asp Met Val His Arg Pro Val Asn Glu Ash Asp Ile Leu Leu286 Val His Arg Asp Ser Ile Phe Arg Ser Ser Cys Glu Val Val Ser301 Lys Ala Asn Cys Ala Lys Leu Lys Gln Gly Ile Ala Val Arg Phe316 His Gly Glu Glu Gly Met Gly Gln Gly Val Val Arg Glu Trp Phe331 Asp Ile Leu Ser Asn Glu Ile Val Asn Pro Asp Tyr Ala Leu Phe346 Thr Gln Ser Ala Asp Gly Thr Thr Phe Gln Pro Asn Ser Asn Ser361 Tyr Val Asn Pro Asp His Leu Asn Tyr Phe Arg Phe Ala Gly Gln376 Ile Leu Gly Leu Ala Leu Asn His Arg Gln Leu Val Asn Ile Tyr391 Phe Thr Arg Ser Phe Tyr Lys His Ile Leu Gly Ile Pro Val Asn406 Tyr Gln Asp Val Ala Ser Ile Asp Pro Glu Tyr Ala Lys Asn Leu421 Gln Trp Ile Leu Asp Asn Asp Ile Ser Asp Pro Gly Leu Glu Leu436 Thr Phe Ser Val Glu Thr Asp Val Phe Gly Ala Met Glu Glu Val451 Pro Leu Lys Pro Gly Gly Gly Ser Ile Leu Val Thr Gln Asn Asn466 Lys Ala Glu Tyr Val Gln Leu Val Thr Glu Leu Arg Met Thr Arg481 Ala Ile Gln Pro Gln Ile Asn Ala Phe Leu Gln Gly Phe His Met496 Phe Ile Pro Pro Ser Leu Ile Gln Leu Phe Asp Glu Tyr Glu Leu511 Glu Leu Leu Leu Ser Gly Met Pro Glu Ile Asp Val Ser Asp Trp526 Ile Lys Asn Thr Glu Tyr Thr Ser Gly Tyr Glu Arg Glu Asp Pro541 Val Ile Gln Trp Phe Trp Glu Val Val Glu Asp Ile Thr Gln Glu556 Glu Arg Val Leu Leu Leu Gln Phe Val Thr Gly Ser Ser Arg Val571 Pro His Gly Gly Phe Ala Asn Ile Met Gly Gly Ser Gly Leu Gln586 Asn Phe Thr Ile Ala Ala Val Pro Tyr Thr Pro Asn Leu Leu Pro601 Thr Ser Ser Thr Cys Ile Asn Met Leu Lys Leu Pro Glu Tyr Pro616 Ser Lys Glu Ile Leu Lys Asp Arg Leu Leu Val Ala Leu His Cys631 Gly Ser Tyr Gly Tyr Thr Met Ala

(4) information of SEQ ID NO:3

(ⅰ) sequence signature

(A) length: 25 bases

(B) type: nucleic acid

(C) chain: strand

(D) topological framework: linearity

(ⅱ) molecule type: oligonucleotide

(ⅹ ⅰ) sequence description: the information of SEQ ID NO:3:GAATGAAGACCTCCGAGAAAACATG 25 (5) SEQ ID NO:4

(ⅰ) sequence signature

(A) length: 25 bases

(B) type: nucleic acid

(C) chain: strand

(D) topological framework: linearity

(ⅱ) molecule type: oligonucleotide

(ⅹ ⅰ) sequence description: the information of SEQ ID NO:4:GGTGGTAAAATACATTTTAATTTTA 25 (6) SEQ ID NO:5

(ⅰ) sequence signature

(A) length: 32 bases

(B) type: nucleic acid

(C) chain: strand

(D) topological framework: linearity

(ⅱ) molecule type: oligonucleotide (ⅹ ⅰ) sequence description: the information of SEQ ID NO:5:CAGCCATGGCGGGGAAGAAGAATGTTCTGTCG 32 (7) SEQ ID NO:6

(ⅰ) sequence signature

(A) length: 29 bases

(B) type: nucleic acid

(C) chain: strand

(D) topological framework: linearity

(ⅱ) molecule type: oligonucleotide (ⅹ ⅰ) sequence description: the information of SEQ ID NO:6:CCCGGATCCCGCTGCTTGGCCTTCTTCAC 29 (8) SEQ ID NO:7:

(ⅰ) sequence signature:

(A) length: 15 amino acid

(B) type: amino acid

(D) topological framework: linearity

(ⅱ) molecule type: polypeptide (ⅹ ⅰ) sequence description: SEQ ID NO:7:Met-Ala-Gly-Lys-Lys-Asn-Val-Leu-Ser-Ser-Leu-Ala-Val-Tyr-Ala 15

Claims (18)

1, a kind of isolated polypeptide-HUPL70 is characterized in that it includes: the polypeptide of the aminoacid sequence shown in the SEQ ID NO:2 or active fragments, analogue or the derivative of its polypeptide.

2, polypeptide as claimed in claim 1, the aminoacid sequence that it is characterized in that described polypeptide, analogue or derivative has the homogeny with the aminoacid sequence at least 95% shown in the SEQ ID NO:2.

3, polypeptide as claimed in claim 2 is characterized in that it comprises the polypeptide with the aminoacid sequence shown in the SEQ ID NO:2.

4, a kind of isolating polynucleotide, it is characterized in that described polynucleotide comprise be selected from down the group in a kind of:

(a) coding has the polynucleotide of the polypeptide of aminoacid sequence shown in the SEQ ID NO:2 or its fragment, analogue, derivative;

(b) with polynucleotide (a) complementary polynucleotide; Or

(c) with (a) or the polynucleotide of at least 70% homogeny (b) are arranged.

5, polynucleotide as claimed in claim 4 is characterized in that described polynucleotide comprise the polynucleotide that coding has aminoacid sequence shown in the SEQID NO:2.

6, polynucleotide as claimed in claim 4, the sequence that it is characterized in that described polynucleotide include the sequence of 1-2682 position among the sequence of 23-1939 position among the SEQ IDNO:1 or the SEQ ID NO:1.

7, a kind of recombinant vectors that contains exogenous polynucleotide is characterized in that it is the recombinant vectors that is formed by the described polynucleotide of arbitrary claim among the claim 4-6 and plasmid, virus or vehicle expression vector establishment.

8, a kind of genetically engineered host cell that contains exogenous polynucleotide is characterized in that it is to be selected from following a kind of host cell:

(a) host cell that transforms or transduce with the described recombinant vectors of claim 7; Or

(b) host cell that transforms or transduce with the described polynucleotide of the arbitrary claim among the claim 4-6.

9, a kind of preparation method with the active polypeptide of HUPL70 is characterized in that described method comprises:

(a) expressing under HUPL70's condition, cultivate the described through engineering approaches host cell of claim 8;

(b) from culture, isolate and have the active polypeptide of HUPL70.

10, a kind of can with polypeptide bonded antibody, it is characterized in that described antibody be can with HUPL70's specificity bonded antibody.

11, the compound of an analoglike or adjusting polypeptide active or expression is characterized in that they are simulation, promotion, antagonism or the active compound that suppresses the HUPL70.

12, compound as claimed in claim 11 is characterized in that it is the polynucleotide sequence shown in the SEQ ID NO:1 or its segmental antisense sequences.

13, the described application of compound of a kind of claim 11, it is characterized in that described compound be used to regulate the HUPL70 in vivo, the method for external activity.

14, a kind of disease relevant or method of disease susceptibility of detecting with the described polypeptide of arbitrary claim among the claim 1-3, it is characterized in that it comprises the described polypeptide expression amount that detects, perhaps detect the activity of described polypeptide, perhaps detect and cause described expression of polypeptides amount or active unusual nucleotide diversity in the polynucleotide.

15, as the application of polypeptide as described in the arbitrary claim among the claim 1-3, it is characterized in that it is applied to screen HUPL70's stand-in, agonist, antagonist or inhibitor; Perhaps be used for the peptide finger print identification.

16, as the application of the described nucleic acid molecule of arbitrary claim among the claim 4-6, it is characterized in that it is used for nucleic acid amplification reaction as primer, perhaps be used for hybridization, perhaps be used to make gene chip or microarray as probe.

17,, it is characterized in that forming pharmaceutical composition with safe and effective dosage and pharmaceutically acceptable carrier as diagnosis or the treatment disease relevant unusually with the HUPL70 with described polypeptide, polynucleotide or its stand-in, agonist, antagonist or inhibitor as the described polypeptide of arbitrary claim, polynucleotide or application of compound in claim 1-6 and 11.

18, the described polypeptide of arbitrary claim, polynucleotide or the application of compound among the claim 1-6 and 11, it is characterized in that being used for the treatment of as malignant tumour with described polypeptide, polynucleotide or compound, hemopathy, the medicine of HIV infection and immunological disease and all kinds of inflammation.

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