CN1344743A - Human testicular development specific protein-26 gene encoding protein - Google Patents
Human testicular development specific protein-26 gene encoding protein Download PDFInfo
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- CN1344743A CN1344743A CN01127208A CN01127208A CN1344743A CN 1344743 A CN1344743 A CN 1344743A CN 01127208 A CN01127208 A CN 01127208A CN 01127208 A CN01127208 A CN 01127208A CN 1344743 A CN1344743 A CN 1344743A
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Abstract
The present invention belongs to the field of human genome technology. The said human testis development specific protein-26 (NYD-SP26) gene has whole length cDNA sequence of 1520 bp, open reading frame sequence of 1188 bp, encoded 395 amino acids and a Genbank number AF380838. The present invention utilizes NYD-SP26 gene to clone and to prepare fusion protein and utilizes the said protein to immunize animal and to prepare monoclonal and polyclonal antibody while using gene cloning in the preparation of chip expressing testis specific function gene.
Description
One, technical field
The invention belongs to the Human genome technical group field.
Two, summary of the invention
Human testicular development specific protein-26 gene of the present invention (testis developmentspecific protein gene 26, NYD-SP26) be that the contriver obtains with the method for gene chip screening in reproductive medicine Jiangsu Province key lab of Nanjing Medical University, at first prepare people's testicular function gene expression chip, by comparing embryo and grownup's testicular function expression of gene, acquisition differential expression clone, prove full-length cDNA through sequencing, be 1520bp; Its open reading frame is 1188bp, its 395 amino acid of encoding.Consult gene pool, this gene is new gene.Because this gene is the adult testis high expression level, embryonic testis is low expresses, therefore the human testicular development specific protein-26 gene of finding may with testicualr development, particularly spermatogeny is relevant, can be prepared into fusion rotein with this gene clone, with this protein immunization rabbit, can obtain mono-clonal and polyclonal antibody, this gene also can be used for preparing the testicular function gene expression chip.
Because human testicular development specific protein-26 gene still unmanned homologous gene in the Genbank database, the inventor all is initiative for the 26S Proteasome Structure and Function achievement in research of this gene.(National Center for BiotechnologyInformation NCBI) formally accepts the newcomer that this gene is Genbank, and accepting number is AF380838 in American National biotechnology information center.
1?gggaccactg?agtccagaag?caagacctgt?gagagtgcac?agtgccactt?cgccccatgg
61?ctgaagatgg?tttgcccaaa?atttattctc?atcctccaac?agaaagcagt?aaaacaccaa
121?ctgcagcaac?cattttcttt?ggggctgaca?atgctattcc?caaatcagaa?acaactatta
181?cttcagaagg?agaccacgtc?acttcagtaa?atgaatatat?gctagaaagc?gatttttcaa
241?caactacaga?caacaaactg?acagctaaaa?aggaaaaact?caaatcagaa?gatgatatgg
301?ggaccgactt?tattaagtca?acaactcacc?tacagaaaga?aattacctct?ctgactggca
361?ctacaaactc?cataacaaga?gactctatta?ccgaacattt?catgccagtg?aaaattggga
421?atatttcatc?accagttact?actgtttctt?taatagattt?ttccactgac?atagcaaaag
481?aagatatcct?cttagctacc?attgacacag?gagatgcaga?gatctcaata?acctctgaag
541?tctctggcac?actaaaggac?agcagtgctg?gtgttgctga?cgctcctgcc?tttccacgta
601?aaaaggatga?agctgatatg?agcaattata?attcctccat?caaatccaat?gtccctgctg
661?atgaggctgt?ccaggtcact?gattccacta?ttcctgaggc?tgaaatccct?cctgctcctg
721?aagaaagctt?cactactatt?ccagacataa?ctgcccttga?agaagagaaa?ataaccgaaa
781?ttgacctaag?tgttttagaa?gatgacacca?gtgctgtggc?tacattaact?gactctgatg
841?agaagtttat?cactgtgttt?gaactcacta?cctctgctga?aaaagacaaa?gataaacggg
901?aagatactct?gctaactgat?gaagaaacta?ccgagggagc?cagtatttgg?atggagagag
961?atactgcaaa?tgaagcagag?acccattctg?ttttgcttac?tgctgttgaa?tccagatatg
1021?acttcgttgt?ccctgcatca?atagctacaa?acctagtgga?agaatcatct?acagaagaag
1081?atttgtctga?aactgataat?acagagactg?tacctaagat?cactgagcca?ttttctggaa
1141?ctacctctgt?attagatacc?ccagactata?aggaagacac?ctccacaact?gaaacggata
1201?tctttgaact?actgaaagaa?gaacccgatg?agttcatgat?ttaaaagcaa?caaaagggat
1261?accatgtaga?attgtgcaat?agtctagcca?gctagcctta?acatctaaga?aatttttcca
1321?acaagcaaaa?acctttagaa?atgaaagaat?gtgggcattt?aaggtcttaa?acactgaata
1381?tcacactctt?cttatgactc?ttgttagcga?ttcaaggaca?taaatcttca?ttcttttctg
1441?gcacagacta?cttaaatggg?tctgttttca?ctttgctcat?ttttcttcaa?taaatctttt
1501?tggcaagcaa?aaaaaaaaaa
Human testicular development specific protein-26 gene cDNA sequence MAEDGLPKIYSHPPTESSKTPTAATIFFGADNAIPKSETTITSEGDHVTSVNEYML ESDFSTTTDNKLTAKKEKLKSEDDMGTDFIKSTTHLQKEITSLTGTTNSITRDSIT EHFMPVKIGNISSPVTTVSLIDFSTDIAKEDILLATIDTGDAEISITSEVSGTLKD SSAGVADAPAFPRKKDEADMSNYNSSIKSNVPADEAVQVTDSTIPEAEIPPAPEES FTTIPDITALEEEKITEIDLSVLEDDTSAVATLTDSDEKFITVFELTTSAEKDKDK REDTLLTDEETTEGASIWMERDTANEAETHSVLLTAVESRYDFVVPASIATNLVEE SSTEEDLSETDNTETVPKITEPFSGTTSVLDTPDYKEDTSTTETDIFELLKEEPDE FMI
Human testicular development specific protein-26 gene proteins encoded aminoacid sequence
The objective of the invention is: in view of human testicular development specific protein-26 gene is the brand-new gene that the inventor finds, human at present understanding and the understanding to this gene only limits to the scientific research that the inventor does.Because this gene is the gene relevant with the testis specific function, and be the low expression of embryo, adult's high expression level, therefore this gene probably with testicualr development, particularly spermatogeny is relevant, and its unconventionality expression may influence the male sex's reproductive function, so the research of this gene can be used for:
1. by this gene Fusion albumen of preparation, be used to study the relation of this gene and testicular function, also may become a kind of biologics for the treatment of the male testical relative disease.
2. prepare specific antibody: the specific antibody of gene coded protein is the indispensable important tool of research gene structure and function, the polyclone of human testicular development specific protein-26 gene proteins encoded and monoclonal antibody, can be used as immunohistochemical staining, ELISA, immuno-electron microscope, multiple detection method such as co-immunoprecipitation according to the immunology principle design, can be used for location and the quantitative examination of this gene coded protein in histocyte, also can be used for various biological specimens (as blood, seminal fluid, urine etc.) content research in and protein-protein interaction research etc.Therefore, this antibody might be used to prepare the diagnostic kit with human testicular development specific protein-26 gene abnormal expression relative disease, and might be used to prepare antifertility drug.
3. prepare gene diagnosis chip: functional gene is used to prepare the importance that gene diagnosis chip is the gene development research, all significant at aspects such as medical diagnosis on disease (as male sterility, sexual disorder) and drug screenings.The preparation of technical solution of the present invention 1. human testicular development specific protein-26 gene fusion roteins is with the nucleotide sequence and the plasmid pDEST of human testicular development specific protein-26 gene open reading frame
TM15 are prepared into the GST-SP2-pDEST15 expression plasmid, cultivate 0.5OD600 for 30 ℃ in the LB of no NaCl, induce through 0.3M NaCl, and ultrasonication obtains the fusion rotein of purifying after GST affinity chromatography column purification.2. human testicular development specific protein-26 gene coded protein specific polyclonal antibody
Getting fusion rotein combines with carrier proteins KLH (Keyhole Limpet Hymocyanin), through the dialysis after again with fully/Freund (Complete/Incomplete Freund ' sAdjuvant) balanced mix, immunity new zealand rabbit (back subcutaneous injection), every 3~4 all booster injections once, totally three times, after three months, get blood system from serum.Be ELISA in contrast with animal serum before the immunity, measure antibody titers in each immunize rabbit serum.Screen high titre serum, further do competition and suppress the specificity that immunity test is determined antibody with antigen.Determine that according to ELISA result its extension rate that is used for immunohistochemical staining is 1: 200~500.3. human testicular development specific protein-26 gene coded protein specific monoclonal antibody
Getting fusion rotein combines with carrier proteins KLH (Keyhole Limpet Hymocyanin), after dialysis again with fully/Freund (Complete/Incomplete Freund ' sAdjuvant) mixes, immunity Balb/C mouse (intraperitoneal injection), every other week once, continuous 2-3 time, vein is strengthened once before merging, after ELISA method confirmation production of antibodies, get the spleen separating Morr. cell, merge the generation hybridoma with the myeloma cell then.Positive colony is through subclone repeatedly, until the monoclonal hybridoma strain that obtains the anti-human testicular development specific protein-26 of secretion.4. human testicular development specific protein-26 gene is used to prepare the testicular function gene expression chip
(1) with the nucleotide sequence design primer of the human testicular development specific protein-26 gene that obtains, the human testicular development specific protein-26 gene sequence of amplification total length is as the sample of some film.
(2) with Britain BioRobotics put automatically the film instrument with specimens point on 8 * 12cm nylon membrane, 2 points of each specimens point, several approximately ng of every DNA amount. 8 housekeeping genes of positive control (a.ribosomal protein S9; B.Actin gamma; C.glyceraldehyde-3-phosphate dehydrogenase; D.hypoxanthinephosphoribosyltransferase l; E.H.sapiens mRNA for 23KD highly basicprotein; F.ubiqnitin C; G.Phospholipase A2; H.ubiquitin carboxy I-ferminal esterase L I).Negative control adds lambda bacteriophage dna and P-blue plasmid.(3) chip that will contain this gene is used for the diagnosis and the drug screening of human testicular development specific protein-26 gene disappearance
33The P mark:
Extracting sample mRNA to be checked or DNA are with Random Primer labelling method mark sample mRNA to be checked or DNA, as the probe of hybridization.Hybridization:
After the nylon membrane label probe hybridization that point is made, oven dry is shielded compressing tablet with phosphorus in the hybrid heater (68 ℃).
Signal scanning and analysis:
Analyze hybridization signal with registering instrument.According to the strong and weak analyst's testicular development specific protein-26 gene protein expression level of hybridization signal or the disappearance of human testicular development specific protein-26 gene.
The human testicular development specific protein-26 gene proteins encoded
Human testicular development specific protein-26 gene cDNA sequence
1?gggaccactg?agtccagaag?caagacctgt?gagagtgcac?agtgccactt?cgccccatgg
61?ctgaagatgg?tttgcccaaa?atttattctc?atcctccaac?agaaagcagt?aaaacaccaa
121?ctgcagcaac?cattttcttt?ggggctgaca?atgctattcc?caaatcagaa?acaactatta
181?cttcagaagg?agaccacgtc?acttcagtaa?atgaatatat?gctagaaagc?gatttttcaa
241?caactacaga?caacaaactg?acagctaaaa?aggaaaaact?caaatcagaa?gatgatatgg
301?ggaccgactt?tattaagtca?acaactcacc?tacagaaaga?aattacctct?ctgactggca
361?ctacaaactc?cataacaaga?gactctatta?ccgaacattt?catgccagtg?aaaattggga
421?atatttcatc?accagttact?actgtttctt?taatagattt?ttccactgac?atagcaaaag
481?aagatatcct?cttagctacc?attgacacag?gagatgcaga?gatctcaata?acctctgaag
541?tctctggcac?actaaaggac?agcagtgctg?gtgttgctga?cgctcctgcc?tttccacgta
601?aaaaggatga?agctgatatg?agcaattata?attcctccat?caaatccaat?gtccctgctg
661?atgaggctgt?ccaggtcact?gattccacta?ttcctgaggc?tgaaatccct?cctgctcctg
721?aagaaagctt?cactactatt?ccagacataa?ctgcccttga?agaagagaaa?ataaccgaaa
781?ttgacctaag?tgttttagaa?gatgacacca?gtgctgtggc?tacattaact?gactctgatg
841?agaagtttat?cactgtgttt?gaactcacta?cctctgctga?aaaagacaaa?gataaacggg
901?aagatactct?gctaactgat?gaagaaacta?ccgagggagc?cagtatttgg?atggagagag
961?atactgcaaa?tgaagcagag?acccattctg?ttttgcttac?tgctgttgaa?tccagatatg
1021?acttcgttgt?ccctgcatca?atagctacaa?acctagtgga?agaatcatct?acagaagaag
1081?atttgtctga?aactgataat?acagagactg?tacctaagat?cactgagcca?ttttctggaa
1141?ctacctctgt?attagatacc?ccagactata?aggaagacac?ctccacaact?gaaacggata
1201?tctttgaact?actgaaagaa?gaacccgatg?agttcatgat?ttaaaagcaa?caaaagggat
1261?accatgtaga?attgtgcaat?agtctagcca?gctagcctta?acatctaaga?aatttttcca
1321?acaagcaaaa?acctttagaa?atgaaagaat?gtgggcattt?aaggtcttaa?acactgaata
1381?tcacactctt?cttatgactc?ttgttagcga?ttcaaggaca?taaatcttca?ttcttttctg
1441?gcacagacta?cttaaatggg?tctgttttca?ctttgctcat?ttttcttcaa?taaatctttt
1501?tggcaagcaa?aaaaaaaaaa
Human testicular development specific protein-26 gene encoding proteins amino acid sequence MAEDGLPKIYSHPPTESSKTPTAATIFFGADNAIPKSETTITSEGDHVTSVNEYML ESDFSTTTDNKLTAKKEKLKSEDDMGTDFIKSTTHLQKEITSLTGTTNSITRDSIT EHFMPVKIGNISSPVTTVSLIDFSTDIAKEDILLATIDTGDAEISITSEVSGTLKD SSAGVADAPAFPRKKDEADMSNYNSSIKSNVPADEAVQVTDSTIPEAEIPPAPEES FTTIPDITALEEEKITEIDLSVLEDDTSAVATLTDSDEKFITVFELTTSAEKDKDK REDTLLTDEETTEGASIWMERDTANEAETHSVLLTAVESRYDFVVPASIATNLVEE SSTEEDLSETDNTETVPKITEPFSGTTSVLDTPDYKEDTSTTETDIFELLKEEPDE FMI
Claims (5)
1. a testicular function specific gene (NYD-SP26) is cloned the fusion of preparation; It is characterized in that the whole ORFs amino acid of NYD-SP26 gene, sequence is: MAEDGLPKIYSHPPTESSKTPTAATIFFGADNAIPKSETTITSEGDHVTSVNEYML ESDFSTTTDNKLTAKKEKLKSEDDMGTDFIKSTTHLQKEITSLTGTTNSITRDSIT EHFMPVKIGNISSPVTTVSLIDFSTDIAKEDILLATIDTGDAEISITSEVSGTLKD SSAGVADAPAFPRKKDEADMSNYNSSIKSNVPADEAVQVTDSTIPEAEIPPAPEES FTTIPDITALEEEKITEIDLSVLEDDTSAVATLTDSDEKFITVFELTTSAEKDKDK REDTLLTDEETTEGASIWMERDTANEAETHSVLLTAVESRYDFVVPASIATNLVEE SSTEEDLSETDNTETVPKITEPFSGTTSVLDTPDYKEDTSTTETDIFELLKEEPDE FMI
2. according to the described polyclonal antibody at the preparation of NYD-SP26 gene open reading frame aminoacid sequence of claim 1, after it is characterized in that fusion rotein and complete and Freund mixing, immune new zealand rabbit prepares polyclonal antibody.
3. according to the described monoclonal antibody of claim 1 at the preparation of NYD-SP26 gene open reading frame aminoacid sequence, it is characterized in that fusion rotein mixes with complete and Freund, immunity Balb/C mouse, the separating spleen bone-marrow-derived lymphocyte and and the myeloma cell merge the generation hybridoma, further, prepare monoclonal antibody with the mono-clonal of subclone method, ELISA and antibody typing method screening IgG secretion antibody.
4. it is characterized in that pcr amplification NYD-SP26 gene cDNA according to claim 1 is described at NYD-SP26 gene open reading frame aminoacid sequence is used to prepare the testicular function gene expression chip, put in chip and be used for chip preparation.
5. according to claim 1, be used to prepare fusion rotein at NYD-SP26 gene open reading frame aminoacid sequence, it is characterized in that fusion rotein can be used as the medicine of preparation treatment relative disease.
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CN01127208A CN1344743A (en) | 2001-09-13 | 2001-09-13 | Human testicular development specific protein-26 gene encoding protein |
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CN01127208A CN1344743A (en) | 2001-09-13 | 2001-09-13 | Human testicular development specific protein-26 gene encoding protein |
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