Author: Kwan, Tony; Benovoy, David; Dias, Christel; Gurd, Scott; Provencher, Cathy; Beaulieu, Patrick; Hudson, Thomas J; Sladek, Rob; Majewski, Jacek
Title: Genome-wide analysis of transcript isoform variation in humans. Cord-id: yddkq4pl Document date: 2008_1_1
ID: yddkq4pl
Snippet: We have performed a genome-wide analysis of common genetic variation controlling differential expression of transcript isoforms in the CEU HapMap population using a comprehensive exon tiling microarray covering 17,897 genes. We detected 324 genes with significant associations between flanking SNPs and transcript levels. Of these, 39% reflected changes in whole gene expression and 55% reflected transcript isoform changes such as splicing variants (exon skipping, alternative splice site use, intro
Document: We have performed a genome-wide analysis of common genetic variation controlling differential expression of transcript isoforms in the CEU HapMap population using a comprehensive exon tiling microarray covering 17,897 genes. We detected 324 genes with significant associations between flanking SNPs and transcript levels. Of these, 39% reflected changes in whole gene expression and 55% reflected transcript isoform changes such as splicing variants (exon skipping, alternative splice site use, intron retention), differential 5' UTR (initiation of transcription) use, and differential 3' UTR (alternative polyadenylation) use. These results demonstrate that the regulatory effects of genetic variation in a normal human population are far more complex than previously observed. This extra layer of molecular diversity may account for natural phenotypic variation and disease susceptibility.
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