Cited by 239DNA Repair MechanismsGenomics and Chromatin DynamicsNuclear Structure and Function

DNAPKcs-dependent arrest of RNA polymerase II transcription in the presence of DNA breaks

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Pankotai, Tibor, Bonhomme, Céline, Chen, David, Soutoglou, Evi·2012·Nature Structural & Molecular Biology

Abstract

DNA double-strand break (DSB) repair interferes with ongoing cellular processes, including replication and transcription. Although the process of replication stalling upon collision of replication forks with damaged DNA has been extensively studied, the fate of elongating RNA polymerase II (RNAPII) that encounters a DSB is not well understood. We show that the occurrence of a single DSB at a human RNAPII-transcribed gene leads to inhibition of transcription elongation and reinitiation. Upon inhibition of DNA protein kinase (DNAPK), RNAPII bypasses the break and continues transcription elongation, suggesting that it is not the break per se that inhibits the processivity of RNAPII, but the activity of DNAPK. We also show that the mechanism of DNAPK-mediated transcription inhibition involves the proteasome-dependent pathway. The results point to the pivotal role of DNAPK activity in the eviction of RNAPII from DNA upon encountering a DNA lesion.

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Authors
Pankotai, T., Bonhomme, C., Chen, D., & Soutoglou, E.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • The University of Texas Southwestern Medical Center (US)
Corresponding author
Soutoglou, Evi
Venue
Nature Structural & Molecular Biology
Published
2012-02-12
Volume
19
Issue
3
Pages
276-282
ISSN
  • 1545-9985 (ISSN-L)
  • 1545-9993
OpenAlex
W2120740595
Cited by
239
References
36
Citations by year
2026: 11 · 2025: 11 · 2024: 21 · 2023: 12 · 2022: 14 · 2021: 24 · 2020: 31 · 2019: 22 · 2018: 10 · 2017: 18 · 2016: 12 · 2015: 18 · 2014: 13 · 2013: 16 · 2012: 5
FWCI
6.67
Type
journal article
Language
en
Locations
  • Nature Structural & Molecular Biology (publishedVersion)
  • PubMed (publishedVersion)
  • SZTE Publicatio Repozitórium (University of Szeged) (acceptedVersion, other-oa)
  • HAL (submittedVersion)
Funders
  • Cancer Research Institute
  • Agence Nationale de la Recherche
  • Fondation pour la Recherche Médicale
  • Hebrew University of Jerusalem
  • Centre National de la Recherche Scientifique
  • Institut National Du Cancer
  • National Institutes of Health (CA50519)
  • National Cancer Institute (CA 50519)
  • Institute of Genetics
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 › Nuclear Structure and Function
Keywords
DNA double-strand breaks, RNA polymerase II, transcription elongation, transcription reinitiation, proteasome, transcriptional arrest, DNA damage response, transcription-coupled repair, transcribed genes
MeSH terms
Ku Autoantigen, Cell Line, DNA-Binding Proteins, Humans, Nuclear Proteins, RNA Polymerase II, Transcription, Genetic, Antigens, Nuclear, DNA-Activated Protein Kinase, DNA Breaks, Double-Stranded

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