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C-Myc regulates transcriptional pause release.

ABSTRACT: Recruitment of the RNA polymerase II (Pol II) transcription initiation apparatus to promoters by specific DNA-binding transcription factors is well recognized as a key regulatory step in gene expression. We report here that promoter-proximal pausing is a general feature of transcription by Pol II in mammalian cells and thus an additional step where regulation of gene expression occurs. This suggests that some transcription factors recruit the transcription apparatus to promoters, whereas others effect promoter-proximal pause release. Indeed, we find that the transcription factor c-Myc, a key regulator of cellular proliferation, plays a major role in Pol II pause release rather than Pol II recruitment at its target genes. We discuss the implications of these results for the role of c-Myc amplification in human cancer.

SUBMITTER: Rahl PB

PROVIDER: S-EPMC2864022 | biostudies-literature | 2010 Apr

REPOSITORIES: biostudies-literature

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c-Myc regulates transcriptional pause release.

Rahl Peter B PB Lin Charles Y CY Seila Amy C AC Flynn Ryan A RA McCuine Scott S Burge Christopher B CB Sharp Phillip A PA Young Richard A RA

Cell 20100401 3

Recruitment of the RNA polymerase II (Pol II) transcription initiation apparatus to promoters by specific DNA-binding transcription factors is well recognized as a key regulatory step in gene expression. We report here that promoter-proximal pausing is a general feature of transcription by Pol II in mammalian cells and thus an additional step where regulation of gene expression occurs. This suggests that some transcription factors recruit the transcription apparatus to promoters, whereas others ...[more]

PMID: 20434984

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