Cited by 333Epigenetics and DNA MethylationGenomics and Chromatin DynamicsChromatin Remodeling and Cancer

Polycomb repressive Complex 1 generates discrete compacted domains that change during differentiation

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Kundu, Sharmistha, Ji, Fei, Sunwoo, Hongjae, Jain, Gaurav, Lee, Jeannie T., Sadreyev, Ruslan I., Dekker, Job, Kingston, Robert E.·2017·Molecular Cell

Abstract

Master regulatory genes require stable silencing by the polycomb group (PcG) to prevent misexpression during differentiation and development. Some PcG proteins covalently modify histones, which contributes to heritable repression. The role for other effects on chromatin structure is less understood. We characterized the organization of PcG target genes in ESCs and neural progenitors using 5C and super-resolution microscopy. The genomic loci of repressed PcG targets formed discrete, small (20-140 Kb) domains of tight interaction that corresponded to locations bound by canonical polycomb repressive complex 1 (PRC1). These domains changed during differentiation as PRC1 binding changed. Their formation depended upon the Polyhomeotic component of canonical PRC1 and occurred independently of PRC1-catalyzed ubiquitylation. PRC1 domains differ from topologically associating domains in size and boundary characteristics. These domains have the potential to play a key role in transmitting epigenetic silencing of PcG targets by linking PRC1 to formation of a repressive higher-order structure.

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Crossref · 10.1016/j.molcel.2017.01.009

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  • Spatial organization of chromatin, including long-range DNA interactions, plays a key role in controlling gene expression and maintaining cellular identity.

    “The spatial organization of chromatin, including a variety of long-range DNA interactions, plays a key role in controlling gene expression and maintaining cellular identity (Gorkin et al., 2014; Kundu et al., 2017; Narendra et al., 2015; Schoenfelder et al., 2015; Zirkel et al., 2018).”

    From Loss of epigenetic information as a cause of mammalian aging (2023) · cites this paper as Kundu et al., 2017

    The Results (page unavailable) link changes in PRC1-associated chromatin domains to Hox gene derepression during differentiation. The Discussion (page unavailable) hypothesizes that these domains might help silence genes and maintain their silenced state; it does not establish that spatial organization plays a key role in maintaining cellular identity. (LLM, conf=0.84)

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Authors
Kundu, S., Ji, F., Sunwoo, H., Jain, G., Lee, J. T., Sadreyev, R. I., Dekker, J., & Kingston, R. E.
Affiliations
  • Harvard University (US)
  • University of Massachusetts Chan Medical School (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Kingston, Robert E.
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2017-02
Volume
65
Issue
3
Pages
432-446.e5
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2585920126
Cited by
333
References
73
Citations by year
2026: 19 · 2025: 23 · 2024: 27 · 2023: 23 · 2022: 45 · 2021: 55 · 2020: 41 · 2019: 48 · 2018: 35 · 2017: 17
FWCI
15.74
Type
journal article
Language
en
Update notices
erratum (2018-07-05)
Open access
Locations
  • Molecular Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship@UMassChan (submittedVersion)
Funders
  • National Institutes of Health (5R01GM043901-24, DK107980, HG003143, P30 DK40561, R01-GM090278)
  • Howard Hughes Medical Institute
  • National Institute of General Medical Sciences
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
PRC1, Polycomb group proteins, chromatin condensation, polyhomeotic, epigenetic silencing, chromatin looping, topologically associating domains, neural progenitor cells, embryonic stem cells, cell differentiation, chromatin organization, higher-order chromatin structure
MeSH terms
Protein Domains, Animals, Cell Differentiation, Cells, Cultured, Chromatin, DNA, Histones, Humans, Homeodomain Proteins, Gene Expression Regulation, Developmental, Epigenesis, Genetic, Mice, Embryonic Stem Cells, Ubiquitination, Neural Stem Cells, Polycomb Repressive Complex 1

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