Cited by 120Histone Deacetylase Inhibitors ResearchGenomics and Chromatin DynamicsEpigenetics and DNA Methylation

Identification of a transcriptional repressor related to the noncatalytic domain of histone deacetylases 4 and 5

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Zhou, Xianbo, Richon, Victoria M., Rifkind, Richard A., Marks, Paul A.·2000·Proceedings of the National Academy of Sciences

Abstract

Histone deacetylases (HDACs) are involved in regulating transcription by modifying the core histones of the nucleosome. To date, six HDACs have been identified in mammalian cells: the yeast RPD3 homologs HDAC1, 2, and 3 and the yeast HDA1 homologs HDAC4, 5, and 6. HDAC4 and HDAC5 contain a noncatalytic N-terminal domain. Herein, we report the identification of a protein HDRP ( HD AC- r elated p rotein) that shares 50% identity in deduced amino acid sequence to the noncatalytic N-terminal domain of HDAC4 and 5. The steady-state levels of HDRP mRNA are high in human brain, heart, and skeletal muscle and low in the several other tissues. HDRP has an apparent molecular mass of approximately 75 kDa. HDRP does not possess intrinsic HDAC activity but forms complexes with both HDAC1 and HDAC3. HDRP represses both basal and activated transcription in transient transfection assays when tethered to DNA as a Gal4-fusion protein. HDAC inhibitors do not reverse transcriptional repression mediated by Gal4–HDRP. Thus, HDRP is a transcriptional repressor and can repress transcription in the presence of HDAC inhibitors.

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  • A natural HDAC9 splice variant lacking the HDAC domain (MITR/HDRP) and analogous artificially truncated forms of other class IIa members retain full transcriptional repressive functions.

    “A natural HDAC9 splice variant lacking the HDAC domain [myocyte enhancer factor-2 interacting transcription repressor/HDAC-related protein (MITR/HDRP)] as well as analogous artificially truncated forms of other class IIa members retain full transcriptional repressive functions (16,17).”

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  1. [22]Schmidt H, Wurl P, Taubert H, Meye A, Bache M, Holzhausen H J, Hinze R. Genes Chromosomes Cancer. 1999;25:205–211. [PubMed] [Google Scholar]

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Authors
Zhou, X., Richon, V. M., Rifkind, R. A., & Marks, P. A.
Affiliations
Memorial Sloan Kettering Cancer Center (US)
Corresponding author
Marks, Paul A.
Venue
Proceedings of the National Academy of Sciences
Published
2000-02
Volume
97
Issue
3
Pages
1056-1061
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2007996284
Cited by
120
References
31
Citations by year
2026: 3 · 2025: 1 · 2024: 2 · 2023: 6 · 2021: 3 · 2020: 8 · 2019: 3 · 2018: 1 · 2017: 1 · 2016: 2 · 2015: 3 · 2014: 3 · 2013: 6 · 2012: 3
FWCI
3.73
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Memorial Sloan-Kettering Cancer Center
  • Foundation for Promotion of Cancer Research
  • National Cancer Institute (CA-0974823)
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
transcriptional repressor, histone deacetylase, HDAC4, HDAC5, transcriptional repression, HDAC1, HDAC3, protein-protein complex formation, histone deacetylase inhibitors, tissue-specific gene expression, GAL4 fusion proteins
MeSH terms
Histone Deacetylase 3, Amino Acid Sequence, Animals, Chlorocebus aethiops, Histone Deacetylases, Humans, Molecular Sequence Data, Organ Specificity, Recombinant Fusion Proteins, Repressor Proteins, RNA, Messenger, Transcription, Genetic, Transfection, Sequence Alignment, Sequence Homology, Amino Acid, COS Cells, Histone Deacetylase 1

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