Acetylation of p53 Activates Transcription through Recruitment of Coactivators/Histone Acetyltransferases
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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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Acetylation of p53 on Lys382 is an activating modification of p53.
“we performed immunoblot analysis to detect the acetylation of p53 on Lys 382, an activating modification of p5335,36.”
From CDK4 inhibition diminishes p53 activation by MDM2 antagonists (2018) · cites this paper as [35]
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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
- bronze
- doi.org
- Licence
- 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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