Widespread changes in nucleosome accessibility without changes in nucleosome occupancy during a rapid transcriptional induction
Open accessAbstract
Activation of transcription requires alteration of chromatin by complexes that increase the accessibility of nucleosomal DNA. Removing nucleosomes from regulatory sequences has been proposed to play a significant role in activation. We tested whether changes in nucleosome occupancy occurred on the set of genes that is activated by the unfolded protein response (UPR). We observed no decrease in occupancy on most promoters, gene bodies, and enhancers. Instead, there was an increase in the accessibility of nucleosomes, as measured by micrococcal nuclease (MNase) digestion and ATAC-seq (assay for transposase-accessible chromatin [ATAC] using sequencing), that did not result from removal of the nucleosome. Thus, changes in nucleosome accessibility predominate over changes in nucleosome occupancy during rapid transcriptional induction during the UPR.
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Active cis-regulatory regions are located in open chromatin regions, while condensed chromatin is inaccessible and inactive.
“Genome-wide epigenetic analysis has proven that active cis-regulatory regions are located in open chromatin regions (12), while condensed chromatin is inaccessible and thus inactive.”
From Hepatocyte Nuclear Factor 4‐Alpha Is Essential for the Active Epigenetic State at Enhancers in Mouse Liver (2019) · cites this paper as [12]
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Cited by
Sorted by citations
Chromatin accessibility and the regulatory epigenome
Klemm, S. L., Shipony, Z., & Greenleaf, W. J. (2019) · Nature Reviews Genetics · doi:10.1038/s41576-018-0089-8 · Cited by 1,793 · see citing works
Thakur, A., Wong, J. C. H., Wang, E. Y., Lotto, J., Kim, D., Cheng, J., Mingay, M., Cullum, R., Moudgil, V., Ahmed, N., et al. (2019) · Hepatology · doi:10.1002/hep.30631 · Cited by 75 · see citing works
“(11) Genome-wide epigenetic analysis has proven that active cis-regulatory regions are located in open chromatin regions,(12) whereas condensed chromatin is inaccessible and thus inactive.”
Background
- Authors
- Mueller, B., Mieczkowski, J., Kundu, S., Wang, P., Sadreyev, R., Tolstorukov, M. Y., & Kingston, R. E.
- Affiliations
- Harvard University (US)
- Venue
- Genes & Development
- Publisher
- Cold Spring Harbor Laboratory
- Published
- 2017-03-01
- Volume
- 31
- Issue
- 5
- Pages
- 451-462
- ISSN
- 0890-9369 (ISSN-L)
- 1549-5477
- PMC
- PMC5393060
- OpenAlex
- W2602182553
- Cited by
- 100
- References
- 2
- Citations by year
- 2026: 4 · 2025: 3 · 2024: 3 · 2023: 9 · 2022: 6 · 2021: 16 · 2020: 16 · 2019: 21 · 2018: 17 · 2017: 4
- Type
- posted content
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- cc-by
- Locations
- Genes & Development (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- HighWire Press Open Archive (submittedVersion)
- Funders
- National Institute of General Medical Sciences of the National Institutes of Health (R01GM043901, R37GM048405)
- Leukemia and Lymphoma Society
- National Institutes of Health (P30 DK040561)
- 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
- nucleosome accessibility, nucleosome occupancy, unfolded protein response, transcriptional induction, chromatin remodeling, transcriptional activation, enhancers, promoter, gene body, ATAC-seq
- MeSH terms
- Animals, Cell Line, Chromatin, Chromosome Mapping, Drosophila melanogaster, Enhancer Elements, Genetic, Gene Expression Regulation, Micrococcal Nuclease, Nucleosomes, Promoter Regions, Genetic, Protein Binding, Unfolded Protein Response
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