Cited by 882Genomics and Chromatin DynamicsChromatin Remodeling and CancerNuclear Structure and Function

Topologically associating domains and chromatin loops depend on cohesin and are regulated by CTCF, WAPL, and PDS5 proteins

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Wutz, Gordana, Várnai, Csilla, Nagasaka, Kota, Cisneros, David A, Stocsits, Roman R, Tang, Wen, Schoenfelder, Stefan, Jessberger, Gregor +9 more·2017·The EMBO Journal

Published version of a preprint

Abstract

Mammalian genomes are spatially organized into compartments, topologically associating domains (TADs), and loops to facilitate gene regulation and other chromosomal functions. How compartments, TADs, and loops are generated is unknown. It has been proposed that cohesin forms TADs and loops by extruding chromatin loops until it encounters CTCF, but direct evidence for this hypothesis is missing. Here, we show that cohesin suppresses compartments but is required for TADs and loops, that CTCF defines their boundaries, and that the cohesin unloading factor WAPL and its PDS5 binding partners control the length of loops. In the absence of WAPL and PDS5 proteins, cohesin forms extended loops, presumably by passing CTCF sites, accumulates in axial chromosomal positions (vermicelli), and condenses chromosomes. Unexpectedly, PDS5 proteins are also required for boundary function. These results show that cohesin has an essential genome-wide function in mediating long-range chromatin interactions and support the hypothesis that cohesin creates these by loop extrusion, until it is delayed by CTCF in a manner dependent on PDS5 proteins, or until it is released from DNA by WAPL.

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Crossref · 10.15252/embj.201798004

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  • Contacts between convergent CTCF binding sites are established by the extrusion of chromatin loops with cohesin.

    “Contacts between convergent CTCF binding sites are established by the extrusion of chromatin loops with cohesin [42,46,48,93].”

    From Enhancer Function in the 3D Genome (2023) · cites this paper as [48]

    The Results report that 73.8% of the analyzed loops in control cells were anchored at convergent CTCF sites, and the Introduction describes cohesin’s role in loop formation. But the Introduction calls loop extrusion a hypothesis that could explain why convergent sites come together; it does not establish extrusion as the mechanism. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Convergent binding sites for CTCF located at TAD borders block the movement of loop extruders.

    “Convergent binding sites for the versatile transcription factor CTCF (CCCTC-binding factor) located at TAD borders [46] block the movement of loop extruders [47,48,49].”

    From Enhancer Function in the 3D Genome (2023) · cites this paper as [48]

  • The CTCF Y226A F228A mutation, similar to CTCF depletion, causes only a slight change in the contact probability profile.

    “The CTCF Y226A F228A mutation, like CTCF depletion, only slightly affects the contact probability profile.”

    From The structural basis for cohesin–CTCF-anchored loops (2020) · cites this paper as [12]

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Authors
Wutz, G., Várnai, C., Nagasaka, K., Cisneros, D. A., Stocsits, R. R., Tang, W., Schoenfelder, S., Jessberger, G., Muhar, M., Hossain, M. J., Walther, N., Koch, B., Kueblbeck, M., Ellenberg, J., Zuber, J., Fraser, P., & Peters, J.
Affiliations
  • Research Institute of Molecular Pathology (AT)
  • Babraham Institute (GB)
  • European Molecular Biology Laboratory (DE)
  • Florida State University (US)
Corresponding author
Peters, Jan‐Michael
Venue
The EMBO Journal
Published
2017-12-07
Volume
36
Issue
24
Pages
3573-3599
ISSN
  • 0261-4189 (ISSN-L)
  • 1460-2075
OpenAlex
W2775505403
Cited by
864
References
97
Citations by year
2026: 83 · 2025: 77 · 2024: 102 · 2023: 97 · 2022: 119 · 2021: 127 · 2020: 112 · 2019: 87 · 2018: 49 · 2017: 11
FWCI
29.61
Type
journal article
Language
en
Open access
Locations
  • The EMBO Journal (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • ePrints Soton (University of Southampton) (submittedVersion)
  • University of Birmingham Research Portal (University of Birmingham) (submittedVersion)
Funders
  • Boehringer Ingelheim
  • Austrian Research Promotion Agency (FFG‐834223)
  • UK Biotechnology and Biological Sciences Research Council (BB/J004480/1)
  • European Research Council Advanced Grant (DEVOCHROMO)
  • EMBO Long Term Fellowship (ALTF 1335‐2016)
  • Austrian Science Fund (SFB F34, Z196‐B20)
  • Human Frontier Science Program (LT001527/2017)
Topics
  • 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
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nuclear Structure and Function
Keywords
topologically associating domains, chromatin looping, cohesin, CTCF, WAPL, Pds5, loop extrusion, chromatin compartments, long-range chromatin interactions, chromosome condensation, vermicelli, 3D genome organization
MeSH terms
CCCTC-Binding Factor, Cohesins, Carrier Proteins, Chromatin, Chromosomal Proteins, Non-Histone, Chromosomes, DNA-Binding Proteins, HeLa Cells, Humans, Nuclear Proteins, Proto-Oncogene Proteins, Transcription Factors, Genome, Human, Cell Cycle Proteins

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