Cited by 710Cancer-related Molecular PathwaysGenomics and Chromatin DynamicsDNA Repair Mechanisms

Acetylation of p53 Activates Transcription through Recruitment of Coactivators/Histone Acetyltransferases

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Barlev, Nickolai A., Liu, Lin, Chehab, Nabil H., Mansfield, Kyle, Harris, Kimberly G., Halazonetis, Thanos D., Berger, Shelley L.·2001·Molecular Cell

Abstract

Cellular DNA damage causes stabilization and activation of the tumor suppressor and transcription factor p53, in part by promoting multiple covalent modifications of the p53 protein, including acetylation. We investigated the importance of acetylation in p53 function and the mechanism by which acetylation influences p53 activity. Acetylation site substitutions reduced p53-dependent transcriptional induction and G1 cell cycle arrest. Chromatin immunoprecipitation analysis of the endogenous p21 promoter showed increased association of p53, coactivators (CBP and TRRAP), and acetylated histones following cell irradiation. Results with acetylation-defective p53 demonstrate that the critical function of acetylation is not to increase the DNA binding affinity of p53 but rather to promote coactivator recruitment and histone acetylation. Therefore, we propose that an acetylation cascade consisting of p53 acetylation-dependent recruitment of coactivators/HATs is crucial for p53 function.

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Crossref · 10.1016/s1097-2765(01)00414-2

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Authors
Barlev, N. A., Liu, L., Chehab, N. H., Mansfield, K., Harris, K. G., Halazonetis, T. D., & Berger, S. L.
Affiliations
The Wistar Institute (US)
Corresponding author
Berger, Shelley L.
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2001-12
Volume
8
Issue
6
Pages
1243-1254
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2034562270
Cited by
710
References
52
Citations by year
2026: 4 · 2025: 15 · 2024: 11 · 2023: 18 · 2022: 18 · 2021: 24 · 2020: 17 · 2019: 22 · 2018: 27 · 2017: 21 · 2016: 19 · 2015: 23 · 2014: 28 · 2013: 26 · 2012: 37
FWCI
18.09
Type
journal article
Language
en
Open access
Locations
  • Molecular Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Cancer Institute (CA 78831)
Topics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
Keywords
p53 acetylation, histone acetylation, transcriptional coactivator, histone acetyltransferase, CBP, TRRAP, p21 promoter, transcriptional activation, DNA damage response, G1 cell cycle arrest
MeSH terms
p300-CBP-Associated Factor, Acetylation, Acetyltransferases, Cell Cycle, Chromatin, Chromatography, Gel, Histones, Humans, Mutation, Nuclear Proteins, Precipitin Tests, Promoter Regions, Genetic, Protein Binding, RNA, Messenger, Transcription Factors, Transcription, Genetic, Tumor Cells, Cultured, Transcriptional Activation, Trans-Activators, Tumor Suppressor Protein p53, Cyclins, Cell Cycle Proteins, Amino Acid Substitution, Saccharomyces cerevisiae Proteins, Adaptor Proteins, Signal Transducing, Cyclin-Dependent Kinase Inhibitor p21, p300-CBP Transcription Factors, CREB-Binding Protein, Histone Acetyltransferases

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