Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

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P53 Chip-Seq in U2OS treated with UV


ABSTRACT: We report that TAF1 phosphorylates p53 at Thr55 on the p21 promoter and this phosphorylation leads to dissociation of p53 from the promoter. Indeed, ChIP-Seq analysis reveals p53 undergoes promoter dissociation at a global level after response to DNA damage, underscoring general nature of the regulation. UVC treatment at the time points indicated was used to access p53 transcription factor signal induction and termination.

INSTRUMENT(S): Illumina HiSeq 2000

ORGANISM(S): Homo sapiens

SUBMITTER: Selene Bobadilla 

PROVIDER: E-MTAB-1988 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Phosphorylation of p53 by TAF1 inactivates p53-dependent transcription in the DNA damage response.

Wu Yong Y   Lin Joy C JC   Piluso Landon G LG   Dhahbi Joseph M JM   Bobadilla Selene S   Spindler Stephen R SR   Liu Xuan X  

Molecular cell 20131127 1


While p53 activation has long been studied, the mechanisms by which its targets genes are restored to their preactivation state are less clear. We report here that TAF1 phosphorylates p53 at Thr55, leading to dissociation of p53 from the p21 promoter and inactivation of transcription late in the DNA damage response. We further show that cellular ATP level might act as a molecular switch for Thr55 phosphorylation on the p21 promoter, indicating that TAF1 is a cellular ATP sensor. Upon DNA damage,  ...[more]

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