Cited by 705Genomics and Chromatin DynamicsDNA Repair MechanismsDiffusion and Search Dynamics

Human cohesin compacts DNA by loop extrusion

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Kim, Yoori, Shi, Zhubing, Zhang, Hongshan, Finkelstein, Ilya J., Yu, Hongtao·2019·Science

Abstract

Cohesin is a chromosome-bound, multisubunit adenosine triphosphatase complex. After loading onto chromosomes, it generates loops to regulate chromosome functions. It has been suggested that cohesin organizes the genome through loop extrusion, but direct evidence is lacking. Here, we used single-molecule imaging to show that the recombinant human cohesin-NIPBL complex compacts both naked and nucleosome-bound DNA by extruding DNA loops. DNA compaction by cohesin requires adenosine triphosphate (ATP) hydrolysis and is force sensitive. This compaction is processive over tens of kilobases at an average rate of 0.5 kilobases per second. Compaction of double-tethered DNA suggests that a cohesin dimer extrudes DNA loops bidirectionally. Our results establish cohesin-NIPBL as an ATP-driven molecular machine capable of loop extrusion.

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Authors
Kim, Y., Shi, Z., Zhang, H., Finkelstein, I. J., & Yu, H.
Affiliations
  • The University of Texas Southwestern Medical Center (US)
  • The University of Texas at Austin (US)
Corresponding author
  • Kim, Yoori
  • Shi, Zhubing
  • Finkelstein, Ilya J.
  • Yu, Hongtao
Venue
Science
Published
2019-12-13
Volume
366
Issue
6471
Pages
1345-1349
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2989713781
Cited by
701
References
42
Citations by year
2026: 84 · 2025: 88 · 2024: 84 · 2023: 106 · 2022: 99 · 2021: 132 · 2020: 105 · 2019: 3
FWCI
28.20
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (GM120554, GM124096)
  • Welch Foundation (I-1441, F-1808)
  • Cancer Prevention and Research Institute of Texas (RP160667-P2)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Diffusion and Search Dynamics
Keywords
cohesin, NIPBL, loop extrusion, DNA condensation, chromosome organization, single-molecule imaging, ATP hydrolysis, force sensitivity, processivity
MeSH terms
Single Molecule Imaging, Cohesins, Chromosomal Proteins, Non-Histone, DNA, Proton-Translocating ATPases, Humans, Nucleic Acid Conformation, Nucleosomes, Cell Cycle Proteins, Protein Multimerization

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