Cited by 614Epigenetics and DNA MethylationGenomics and Chromatin DynamicsChromatin Remodeling and Cancer

Molecular mechanisms directing PRC2 recruitment and H3K27 methylation

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Laugesen, Anne, Højfeldt, Jonas Westergaard, Helin, Kristian·2019·Molecular Cell

Abstract

The polycomb repressive complex 2 (PRC2) is a chromatin-associated methyltransferase catalyzing mono-, di-, and trimethylation of lysine 27 on histone H3 (H3K27). This activity is required for normal organismal development and maintenance of gene expression patterns to uphold cell identity. PRC2 function is often deregulated in disease and is a promising candidate for therapeutic targeting in cancer. In this review, we discuss the molecular mechanisms proposed to take part in modulating PRC2 recruitment and shaping H3K27 methylation patterns across the genome. This includes consideration of factors influencing PRC2 residence time on chromatin and PRC2 catalytic activity with a focus on the mechanisms giving rise to regional preferences and differential deposition of H3K27 methylation. We further discuss existing evidence for functional diversity between distinct subsets of PRC2 complexes with the aim of extracting key concepts and highlighting major open questions toward a more complete understanding of PRC2 function.

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  • EZH2 serves as the catalytic subunit of Polycomb Repressive Complex 2, responsible for depositing the repressive H3K27me3 mark and silencing target genes.

    “Within the Polycomb Repressive Complex 2 (PRC2), EZH2 serves as the catalytic subunit responsible for depositing the repressive H3K27me3 mark and silencing target genes (Blackledge et al., 2020; Laugesen et al., 2019).”

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Authors
Laugesen, A., Højfeldt, J. W., & Helin, K.
Affiliations
University of Copenhagen (DK)
Corresponding author
Helin, Kristian
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2019-04
Volume
74
Issue
1
Pages
8-18
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2925415367
Cited by
602
References
105
Citations by year
2026: 60 · 2025: 89 · 2024: 85 · 2023: 83 · 2022: 79 · 2021: 87 · 2020: 83 · 2019: 36
FWCI
6.31
Type
journal article
Language
en
Open access
Locations
  • Molecular Cell (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion, other-oa)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Danmarks Grundforskningsfond (DNRF 82)
  • Novo Nordisk Fonden (NNF16OC0023234)
  • National Cancer Institute (P30CA008748)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
Keywords
polycomb repressive complex 2, H3K27 methylation, histone methyltransferase, gene silencing, cancer therapy targets
MeSH terms
Animals, Histones, Humans, Lysine, Methylation, Protein Binding, DNA Methylation, Chromatin Assembly and Disassembly, Polycomb Repressive Complex 2

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