Cited by 279Genomics and Chromatin DynamicsChromatin Remodeling and CancerNuclear Structure and Function

Chromatin structure dynamics during the mitosis-to-G1 phase transition

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Zhang, Haoyue, Emerson, Daniel J., Gilgenast, Thomas G., Titus, Katelyn R., Lan, Yemin, Huang, Peng, Zhang, Di, Wang, Hongxin +5 more·2019·Nature

Abstract

Features of higher-order chromatin organization-such as A/B compartments, topologically associating domains and chromatin loops-are temporarily disrupted during mitosis 1,2. Because these structures are thought to influence gene regulation, it is important to understand how they are re-established after mitosis. Here we examine the dynamics of chromosome reorganization by Hi-C after mitosis in highly purified, synchronous mouse erythroid cell populations. We observed rapid establishment of A/B compartments, followed by their gradual intensification and expansion. Contact domains form from the 'bottom up'-smaller subTADs are formed initially, followed by convergence into multi-domain TAD structures. CTCF is partially retained on mitotic chromosomes and immediately resumes full binding in ana/telophase. By contrast, cohesin is completely evicted from mitotic chromosomes and regains focal binding at a slower rate. The formation of CTCF/cohesin co-anchored structural loops follows the kinetics of cohesin positioning. Stripe-shaped contact patterns-anchored by CTCF-grow in length, which is consistent with a loop-extrusion process after mitosis. Interactions between cis-regulatory elements can form rapidly, with rates exceeding those of CTCF/cohesin-anchored contacts. Notably, we identified a group of rapidly emerging transient contacts between cis-regulatory elements in ana/telophase that are dissolved upon G1 entry, co-incident with the establishment of inner boundaries or nearby interfering chromatin loops. We also describe the relationship between transcription reactivation and architectural features. Our findings indicate that distinct but mutually influential forces drive post-mitotic chromatin reconfiguration.

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Authors
Zhang, H., Emerson, D. J., Gilgenast, T. G., Titus, K. R., Lan, Y., Huang, P., Zhang, D., Wang, H., Keller, C. A., Giardine, B., Hardison, R. C., Phillips-Cremins, J. E., & Blobel, G. A.
Affiliations
  • Children's Hospital of Philadelphia (US)
  • University of Pennsylvania (US)
  • Pennsylvania State University (US)
Corresponding author
Blobel, Gerd A.
Venue
Nature
Published
2019-11-27
Volume
576
Issue
7785
Pages
158-162
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2990380375
Cited by
271
References
27
Citations by year
2026: 31 · 2025: 57 · 2024: 28 · 2023: 45 · 2022: 31 · 2021: 48 · 2020: 29 · 2019: 2
FWCI
9.68
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (U01HL129998)
  • National Institute of Mental Health (DP2MH110247)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R37DK058044, R01DK058044, R24DK106766)
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
chromatin reorganization, A/B compartments, topologically associating domains, CTCF, cohesin, chromatin looping, loop extrusion, erythroid cells
MeSH terms
Cohesins, Animals, Chromatin, Chromosomal Proteins, Non-Histone, Mitosis, G1 Phase, Cell Cycle Proteins, Mice

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