The stress-responsive gene ATF3 regulates the histone acetyltransferase Tip60

Hongmei Cui, Mingxiong Guo, Dong Xu, Zhi-Chun Ding, Gang Zhou, Hanfei Ding, Junran Zhang, Yi Tang, Chunhong Yan

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Tat-interactive protein 60 (Tip60) is a MYST histone acetyltransferase that catalyses acetylation of the major DNA damage kinase Ataxia telangiectasia mutated (ATM), thereby triggering cellular signalling required for the maintenance of genomic stability on genotoxic insults. The Tip60 activity is modulated by post-translational modifications that alter its stability and its interactions with substrates. Here we report that activating transcription factor 3 (ATF3), a common stress mediator and a p53 activator, is a regulator of Tip60. ATF3 directly binds Tip60 at a region adjacent to the catalytic domain to promote the protein acetyltransferase activity. Moreover, the ATF3-Tip60 interaction increases the Tip60 stability by promoting USP7-mediated deubiquitination of Tip60. Consequently, knockdown of ATF3 expression leads to decreased Tip60 expression and suppression of ATM signalling as evidenced by accumulated DNA lesions and increased cell sensitivity to irradiation. Our findings thus reveal a previously unknown function of a common stress mediator in regulating Tip60 function.

Original languageEnglish (US)
Article number6752
JournalNature Communications
Volume6
DOIs
StatePublished - Apr 13 2015

Fingerprint

Activating Transcription Factor 3
tat Gene Products
Histone Acetyltransferases
genes
Genes
proteins
Proteins
ataxia
Ataxia Telangiectasia
Polynucleotide 5'-Hydroxyl-Kinase
deoxyribonucleic acid
acetylation
Cell signaling
Acetyltransferases
Protein Stability
Acetylation
Genomic Instability
Post Translational Protein Processing
DNA
regulators

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

The stress-responsive gene ATF3 regulates the histone acetyltransferase Tip60. / Cui, Hongmei; Guo, Mingxiong; Xu, Dong; Ding, Zhi-Chun; Zhou, Gang; Ding, Hanfei; Zhang, Junran; Tang, Yi; Yan, Chunhong.

In: Nature Communications, Vol. 6, 6752, 13.04.2015.

Research output: Contribution to journalArticle

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AU - Zhou, Gang

AU - Ding, Hanfei

AU - Zhang, Junran

AU - Tang, Yi

AU - Yan, Chunhong

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