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学科主题基础医学
Discovery of novel human transcript variants by analysis of intronic single-block EST with polyadenylation site
Wang, Pingzhang1,2,3; Yu, Peng1; Gao, Peng1; Shi, Taiping1,2,3; Ma, Dalong1,2,3
刊名BMC GENOMICS
2009-11-12
DOI10.1186/1471-2164-10-518
10期:0
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Biotechnology & Applied Microbiology ; Genetics & Heredity
研究领域[WOS]Biotechnology & Applied Microbiology ; Genetics & Heredity
关键词[WOS]MESSENGER-RNA POLYADENYLATION ; NECROSIS-FACTOR RECEPTORS ; ACTIVATED PROTEIN-KINASE ; GENOME BROWSER DATABASE ; NF-KAPPA-B ; ALTERNATIVE POLYADENYLATION ; HUMAN-DISEASE ; HUMAN TISSUES ; SOLUBLE FORM ; 2008 UPDATE
英文摘要

Background: Alternative polyadenylation sites within a gene can lead to alternative transcript variants. Although bioinformatic analysis has been conducted to detect polyadenylation sites using nucleic acid sequences (EST/mRNA) in the public databases, one special type, single-block EST is much less emphasized. This bias leaves a large space to discover novel transcript variants.

Results: In the present study, we identified novel transcript variants in the human genome by detecting intronic polyadenylation sites. Poly(A/T)-tailed ESTs were obtained from single-block ESTs and clustered into 10,844 groups standing for 5,670 genes. Most sites were not found in other alternative splicing databases. To verify that these sites are from expressed transcripts, we analyzed the supporting EST number of each site, blasted representative ESTs against known mRNA sequences, traced terminal sequences from cDNA clones, and compared with the data of Affymetrix tiling array. These analyses confirmed about 84% (9,118/10,844) of the novel alternative transcripts, especially, 33% (3,575/10,844) of the transcripts from 2,704 genes were taken as high-reliability. Additionally, RT-PCR confirmed 38% (10/26) of predicted novel transcript variants.

Conclusion: Our results provide evidence for novel transcript variants with intronic poly(A) sites. The expression of these novel variants was confirmed with computational and experimental tools. Our data provide a genome-wide resource for identification of novel human transcript variants with intronic polyadenylation sites, and offer a new view into the mystery of the human transcriptome.

语种英语
WOS记录号WOS:000272356800001
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
文献类型期刊论文
版本出版稿
条目标识符http://ir.bjmu.edu.cn/handle/400002259/58782
Collection北京大学基础医学院_免疫学系
北京大学基础医学院
作者单位1.Chinese Natl Human Genome Ctr, Beijing 100176, Peoples R China
2.Peking Univ, Hlth Sci Ctr, Sch Basic Med Sci, Lab Med Immunol, Beijing 100083, Peoples R China
3.Peking Univ, Ctr Human Dis Genom, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Wang, Pingzhang,Yu, Peng,Gao, Peng,et al. Discovery of novel human transcript variants by analysis of intronic single-block EST with polyadenylation site[J]. BMC GENOMICS,2009,10(0).
APA Wang, Pingzhang,Yu, Peng,Gao, Peng,Shi, Taiping,&Ma, Dalong.(2009).Discovery of novel human transcript variants by analysis of intronic single-block EST with polyadenylation site.BMC GENOMICS,10(0).
MLA Wang, Pingzhang,et al."Discovery of novel human transcript variants by analysis of intronic single-block EST with polyadenylation site".BMC GENOMICS 10.0(2009).
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