Cited by 257Genomics and Chromatin DynamicsChromatin Remodeling and CancerEpigenetics and DNA Methylation

Single-molecule regulatory architectures captured by chromatin fiber sequencing

Stergachis, Andrew B., Debo, Brian M., Haugen, Eric, Churchman, L. Stirling, Stamatoyannopoulos, John A.·2020·Science

Abstract

Primary architecture of chromatin fibers: The organization of chromosomal DNA, including the positioning of nucleosomes and nucleosome-free regions harboring regulatory proteins along single chromatin fibers, is fundamental to genome function. However, most sequencing methods cannot elucidate this organization at the nucleotide level. Stergachis et al. present an approach, Fiber-seq, that maps chromatin fibers onto the underlying DNA template using methyltransferases to create a kind of stencil in fly and human cells. This method identifies chromatin structure at nearly a single-molecule level and can monitor the position of nucleosomes. Using Fiber-seq, the authors identify how regulatory DNA activation is related to nucleosome positioning and DNA variation. Science , this issue p. 1449

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Crossref · 10.1126/science.aaz1646

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  • Single-molecule footprinting methods that use methyltransferases to mark accessible sites can provide quantitative measurements of binding states across individual molecules.

    “single-molecule footprinting methods that use methyltransferases to mark accessible sites11–15 can provide quantitative measurements of these binding states across individual molecules”
  • Transcription factor binding to DNA appears to be very transient.

    “While it is clear that enhancers typically favour the more flexible models of sequence organisation, the degree of necessary cooperation between TFs is less obvious, particularly since TF binding to DNA appears to be very transient [113–117].”

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Authors
Stergachis, A. B., Debo, B. M., Haugen, E., Churchman, L. S., & Stamatoyannopoulos, J. A.
Affiliations
  • Brigham and Women's Hospital (US)
  • Altius Institute for Biomedical Sciences (US)
  • Harvard University (US)
  • University of Washington (US)
Corresponding author
  • Stergachis, Andrew B.
  • Stamatoyannopoulos, John A.
Venue
Science
Published
2020-06-26
Volume
368
Issue
6498
Pages
1449-1454
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W3037519049
Cited by
257
References
6
Citations by year
2026: 66 · 2025: 69 · 2024: 36 · 2023: 29 · 2022: 28 · 2021: 23 · 2020: 6
FWCI
7.13
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Human Genome Research Institute (1UM1HG009444)
  • National Institute of General Medical Sciences (GM007748)
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 › Epigenetics and DNA Methylation
Keywords
chromatin fiber structure, nucleosome positioning, nucleosome-free regions, chromatin organization
MeSH terms
Single Molecule Imaging, Animals, Chromatin, DNA, Drosophila melanogaster, Gene Expression Regulation, Humans, Nucleosomes, Promoter Regions, Genetic, Transcription Factors, Site-Specific DNA-Methyltransferase (Adenine-Specific), K562 Cells, Chromatin Assembly and Disassembly, High-Throughput Nucleotide Sequencing

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