Cited by 264Histone Deacetylase Inhibitors ResearchGenomics and Chromatin DynamicsEpigenetics and DNA Methylation

Regulation of MEF2 by Histone Deacetylase 4- and SIRT1 Deacetylase-Mediated Lysine Modifications

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Zhao, Xuan, Sternsdorf, Thomas, Bolger, Timothy A., Evans, Ronald M., Yao, Tso-Pang·2005·Molecular and Cellular Biology

Abstract

The class II deacetylase histone deacetylase 4 (HDAC4) negatively regulates the transcription factor MEF2. HDAC4 is believed to repress MEF2 transcriptional activity by binding to MEF2 and catalyzing local histone deacetylation. Here we report that HDAC4 also controls MEF2 by a novel SUMO E3 ligase activity. We show that HDAC4 interacts with the SUMO E2 conjugating enzyme Ubc9 and is itself sumoylated. The overexpression of HDAC4 leads to prominent MEF2 sumoylation in vivo, whereas recombinant HDAC4 stimulates MEF2 sumoylation in a reconstituted system in vitro. Importantly, HDAC4 promotes sumoylation on a lysine residue that is also subject to acetylation by a MEF2 coactivator, the acetyltransferase CBP, suggesting a possible interplay between acetylation and sumoylation in regulating MEF2 activity. Indeed, MEF2 acetylation is correlated with MEF2 activation and dynamically induced upon muscle cell differentiation, while sumoylation inhibits MEF2 transcriptional activity. Unexpectedly, we found that HDAC4 does not function as a MEF2 deacetylase. Instead, the NAD+-dependent deacetylase SIRT1 can potently induce MEF2 deacetylation. Our studies reveal a novel regulation of MEF2 transcriptional activity by two distinct classes of deacetylases that affect MEF2 sumoylation and acetylation.

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  1. [14]Hay, R. T. 2005. SUMO: a history of modification. Mol. Cell 18:1-12. [DOI] [PubMed] [Google Scholar]

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Authors
Zhao, X., Sternsdorf, T., Bolger, T. A., Evans, R. M., & Yao, T.-P.
Affiliations
  • Duke University (US)
  • Salk Institute for Biological Studies (US)
Corresponding author
Yao, Tso-Pang
Venue
Molecular and Cellular Biology
Published
2005-10-01
Volume
25
Issue
19
Pages
8456-8464
ISSN
  • 0270-7306 (ISSN-L)
  • 1098-5549
OpenAlex
W2133015492
Cited by
264
References
45
Citations by year
2026: 4 · 2025: 7 · 2024: 7 · 2023: 1 · 2022: 5 · 2021: 11 · 2020: 10 · 2019: 11 · 2018: 10 · 2017: 12 · 2016: 16 · 2015: 18 · 2014: 13 · 2013: 18 · 2012: 15
FWCI
6.42
Type
journal article
Language
en
Open access
Locations
  • Molecular and Cellular Biology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Histone Deacetylase Inhibitors Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
Keywords
MEF2, HDAC4, SIRT1, SUMOylation, acetylation, lysine modification, SUMO E3 ligase, Ubc9, CBP, transcriptional regulation, muscle cell differentiation, histone deacetylation
MeSH terms
Acetylation, Amino Acid Sequence, Animals, Cell Differentiation, Cell Line, DNA, Fibroblasts, Gene Expression Regulation, Genetic Vectors, Histone Deacetylases, Humans, Luciferases, Lysine, Models, Biological, Molecular Sequence Data, Mutation, Plasmids, Recombinant Proteins, Repressor Proteins, Transcription, Genetic, Transfection, Blotting, Western, Protein Structure, Tertiary, Myogenic Regulatory Factors, Small Ubiquitin-Related Modifier Proteins, Sirtuins, Ubiquitin-Protein Ligases, Immunoprecipitation, Mice, Sirtuin 1, MEF2 Transcription Factors

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