PreprintCited by 21Genomics and Chromatin DynamicsEpigenetics and DNA MethylationHistone Deacetylase Inhibitors Research

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Structure of histone deacetylase complex Rpd3S bound to nucleosome

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Wang, Haibo, Cui, Hengjun·2023·Nature Structural & Molecular Biology

Preprint — published as 10.1038/s41594-023-01121-5

Abstract

Histone modifications are involved in the regulation of chromatin-based processes, including transcription, DNA replication and repair 1–5. Among them, histone acetylation and deacetylation are usually correlated with transcription activation and repression, respectively 6. The Set2-Rpd3S pathway maintains hypoacetylation states of actively transcribed chromatin regions to suppress cryptic transcription initiation 7–9. During this process, the histone deacetylase (HDAC) complex Rpd3S is recruited to nucleosomes which are methylated at lysine 36 residue of histone H3 (H3K36me) by histone methyltransferase Set2 7,9. However, how the five unique subunits of Rpd3S are assembled and coordinated to recognize nucleosomal substrates and exert its deacetylation function remains unclear. Here, we report the cryo-electron microscopy (cryo-EM) structure of Saccharomyces cerevisiae Rpd3S deacetylase bound to H3K36me3-modified nucleosome at 3.1 Å resolution. It reveals that Sin3 and Rco1 subunits orchestrate the assembly of the complex and mediate its contact with nucleosome at multiple sites. In addition, the chromodomain (CHD) of Eaf3 subunit recognizes the H3K36me3 marker and contacts both nucleosomal and linker DNA. The structure not only unravels the architecture of the Rpd3S complex, but also sheds light on the structural basis of its nucleosome targeting and function.

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Metadata

Authors
Wang, H., & Cui, H.
Affiliations
  • Second Affiliated Hospital of Zhejiang University (CN)
  • Zhejiang Univeristy
Corresponding author
Wang, Haibo
Venue
Nature Structural & Molecular Biology
Published
2023-05-02
Volume
30
Issue
12
Pages
1893-1901
ISSN
1545-9985 (ISSN-L)
OpenAlex
W4387363973
Cited by
21
References
1
Citations by year
2026: 9 · 2025: 3 · 2024: 7 · 2023: 2
FWCI
1.87
Type
journal article
Language
en
Open access
Locations
  • Nature Structural & Molecular Biology (publishedVersion)
  • Research Square (acceptedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China
  • Zhejiang University
Topics
  • 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
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Histone Deacetylase Inhibitors Research
Keywords
histone deacetylase, nucleosome, H3K36 methylation, Sin3, chromodomain, chromatin targeting, Saccharomyces cerevisiae, histone modifications, transcription elongation, protein-DNA interface
MeSH terms
Acetyltransferases, DNA, Histone Deacetylases, Histones, Methylation, Nucleosomes, Saccharomyces cerevisiae, Saccharomyces cerevisiae Proteins

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