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Classical non-homologous end-joining pathway utilizes nascent RNA for error-free double-strand break repair of transcribed genes

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms13049· OSTI ID:1623855
 [1];  [2];  [2];  [3];  [3];  [4];  [5];  [3];  [2]
  1. University of Texas Medical Branch, Galveston, Texas (United States). Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Sealy Center for Molecular Medicine; DOE/OSTI
  2. University of Texas Medical Branch, Galveston, Texas (United States). Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Sealy Center for Molecular Medicine
  3. The Houston Methodist Research Institute, Houston, Texas (United States). Department of Radiation Oncology, The Houston Methodist Research Institute
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Division of Life Sciences, Department of Cancer and DNA Damage Responses
  5. University of Texas Medical Branch, Galveston, Texas (United States). Department of Neurology and Neuroscience and Cell Biology
DNA double-strand breaks (DSBs) leading to loss of nucleotides in the transcribed region can be lethal. Classical non-homologous end-joining (C-NHEJ) is the dominant pathway for DSB repair (DSBR) in adult mammalian cells. Here we report that during such DSBR, mammalian C-NHEJ proteins form a multiprotein complex with RNA polymerase II and preferentially associate with the transcribed genes after DSB induction. Depletion of C-NHEJ factors significantly abrogates DSBR in transcribed but not in non-transcribed genes. We hypothesized that nascent RNA can serve as a template for restoring the missing sequences, thus allowing error-free DSBR. We indeed found pre-mRNA in the C-NHEJ complex. Finally, when a DSB-containing plasmid with several nucleotides deleted within the E. coli lacZ gene was allowed time to repair in lacZ expressing mammalian cells, a functional lacZ plasmid could be recovered from control but not C-NHEJ factor-depleted cells, providing important mechanistic insights into C-NHEJ-mediated error-free DSBR of the transcribed genome.
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1623855
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 7; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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The emerging role of RNAs in DNA damage repair journal February 2017
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The roles of RNA in DNA double-strand break repair journal January 2020
Heterogeneous nuclear ribonucleoprotein L facilitates recruitment of 53BP1 and BRCA1 at the DNA break sites induced by oxaliplatin in colorectal cancer journal July 2019
Programmable DNA repair with CRISPRa/i enhanced homology-directed repair efficiency with a single Cas9 journal July 2018
How RNA transcripts coordinate DNA recombination and repair journal March 2018
Replication timing and epigenome remodelling are associated with the nature of chromosomal rearrangements in cancer journal January 2019
TLP-mediated global transcriptional repression after double-strand DNA breaks slows down DNA repair and induces apoptosis journal March 2019
Pre-existing H4K16ac levels in euchromatin drive DNA repair by homologous recombination in S-phase journal July 2019
Nuclear poly(A)-binding protein 1 is an ATM target and essential for DNA double-strand break repair journal December 2017
Regulation of DNA Double Strand Breaks Processing: Focus on Barriers journal July 2019
Beyond the Trinity of ATM, ATR, and DNA-PK: Multiple Kinases Shape the DNA Damage Response in Concert With RNA Metabolism journal August 2019
Emerging Roles of RAD52 in Genome Maintenance journal July 2019
Mutant huntingtin impairs PNKP and ATXN3, disrupting DNA repair and transcription journal April 2019
Maintenance of genome stability: the unifying role of interconnections between the DNA damage response and RNA-processing pathways journal March 2018
Damage-induced lncRNAs control the DNA damage response through interaction with DDRNAs at individual double-strand breaks journal November 2017
RNA takes over control of DNA break repair journal December 2017
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The pause-initiation limit restricts transcription activation in human cells journal August 2019
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Tyrosine kinase c-Abl couples RNA polymerase II transcription to DNA double-strand breaks journal January 2019
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Proteomic analysis of RNA-dependent chromatin association of nuclear proteins posted_content August 2018
Hepatitis B Virus DNA Integration Occurs Early in the Viral Life Cycle in an In Vitro Infection Model via Sodium Taurocholate Cotransporting Polypeptide-Dependent Uptake of Enveloped Virus Particles journal February 2018
Transcription is a major driving force for plastid genome instability in Arabidopsis journal April 2019
BRCA2 controls DNA:RNA hybrid level at DSBs by mediating RNase H2 recruitment. text January 2018
The Pivotal Role of DNA Repair in Infection Mediated-Inflammation and Cancer journal April 2018
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DNA Damage Response and Oxidative Stress in Systemic Autoimmunity journal December 2019
BRCA2 controls DNA:RNA hybrid level at DSBs by mediating RNase H2 recruitment text January 2018

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