Cited by 670DNA Repair MechanismsGenomics and Chromatin DynamicsCRISPR and Genetic Engineering

Transcriptionally active chromatin recruits homologous recombination at DNA double-strand breaks

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Aymard, François, Bugler, Beatrix, Schmidt, Christine K, Guillou, Emmanuelle, Caron, Pierre, Briois, Sébastien, Iacovoni, Jason S, Daburon, Virginie +3 more·2014·Nature Structural & Molecular Biology

Abstract

Although both homologous recombination (HR) and nonhomologous end joining can repair DNA double-strand breaks (DSBs), the mechanisms by which one of these pathways is chosen over the other remain unclear. Here we show that transcriptionally active chromatin is preferentially repaired by HR. Using chromatin immunoprecipitation-sequencing (ChIP-seq) to analyze repair of multiple DSBs induced throughout the human genome, we identify an HR-prone subset of DSBs that recruit the HR protein RAD51, undergo resection and rely on RAD51 for efficient repair. These DSBs are located in actively transcribed genes and are targeted to HR repair via the transcription elongation-associated mark trimethylated histone H3 K36. Concordantly, depletion of SETD2, the main H3 K36 trimethyltransferase, severely impedes HR at such DSBs. Our study thereby demonstrates a primary role in DSB repair of the chromatin context in which a break occurs.

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Authors
Aymard, F., Bugler, B., Schmidt, C. K., Guillou, E., Caron, P., Briois, S., Iacovoni, J. S., Daburon, V., Miller, K. M., Jackson, S. P., & Legube, G.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • University of Cambridge (GB)
  • Inserm (FR)
Corresponding author
Legube, Gaëlle
Venue
Nature Structural & Molecular Biology
Published
2014-03-23
Volume
21
Issue
4
Pages
366-374
ISSN
  • 1545-9985 (ISSN-L)
  • 1545-9993
OpenAlex
W2097027640
Cited by
668
References
52
Citations by year
2026: 33 · 2025: 51 · 2024: 50 · 2023: 47 · 2022: 65 · 2021: 79 · 2020: 69 · 2019: 53 · 2018: 47 · 2017: 62 · 2016: 52 · 2015: 40 · 2014: 18
FWCI
23.52
Type
journal article
Language
en
Open access
Locations
  • Nature Structural & Molecular Biology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • HAL (submittedVersion)
  • Research Explorer (The University of Manchester) (submittedVersion, other-oa)
Funders
  • Wellcome Trust (086861, 092096)
  • European Molecular Biology Laboratory
  • Broad Institute
  • Cancer Research UK (C6/A11226, 11224, A11224)
  • Agence Nationale de la Recherche (ANR-09-JCJC-0138)
  • National Cancer Institute (F31CA260794)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
Keywords
DNA double-strand breaks, homologous recombination, non-homologous end joining, RAD51, SETD2, transcriptionally active chromatin, DNA resection, transcription elongation, chromatin context
MeSH terms
Cell Line, Chromatin, DNA Repair, DNA-Binding Proteins, Histones, Humans, Neoplasm Proteins, Transcription, Genetic, Rad51 Recombinase, DNA Breaks, Double-Stranded, Homologous Recombination, DNA End-Joining Repair

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