Tumor-specific usage of alternative transcription start sites in colorectal cancer identified by genome-wide exon array analysis

Abstract excerpt

BACKGROUND: Approximately half of all human genes use alternative transcription start sites (TSSs) to control mRNA levels and broaden the transcriptional output in healthy tissues. Aberrant expression patterns promoting carcinogenesis, however, may arise from alternative promoter usage. RESULTS: By profiling 108 colorectal samples using exon arrays, we identified nine genes (TCF12, OSBPL1A, TRAK1, ANK3, CHEK1,...

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