SET1 and p300 Act Synergistically, through Coupled Histone Modifications, in Transcriptional Activation by p53

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The H3K4me3 mark in chromatin is closely correlated with actively transcribed genes, although the mechanisms involved in its generation and function are not fully understood. In vitro studies with recombinant chromatin and purified human factors demonstrate a robust SET1 complex (SET1C)-mediated H3K4 trimethylation that is dependent upon p53- and p300-mediated H3 acetylation, a corresponding SET1C-mediated enhancement of p53- and p300-dependent transcription that reflects a primary effect of SET1C through H3K4 trimethylation, and direct SET1C-p53 and SET1C-p300 interactions indicative of a targeted recruitment mechanism. Complementary cell-based assays demonstrate a DNA-damage-induced p53- SET1C interaction, a corresponding enrichment of SET1C and H3K4me3 on a p53 target gene (p21/WAF1), and a corresponding codependency of H3K4 trimethylation and transcription upon p300 and SET1C. These results establish a mechanism in which SET1C and p300 act cooperatively, through direct interactions and coupled histone modifications, to facilitate the function of p53.
Publisher
CELL PRESS
Issue Date
2013-07
Language
English
Article Type
Article
Citation

CELL, v.154, no.2, pp.297 - 310

ISSN
0092-8674
DOI
10.1016/j.cell.2013.06.027
URI
http://hdl.handle.net/10203/211903
Appears in Collection
BS-Journal Papers(저널논문)
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