Cited by 201RNA Research and SplicingGenomics and Chromatin DynamicsRNA regulation and disease

The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.

Noncoding RNA transcription targets AID to divergently transcribed loci in B cells

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Abstract

The vast majority of the mammalian genome has the potential to express noncoding RNA (ncRNA). The 11-subunit RNA exosome complex is the main source of cellular 3'-5' exoribonucleolytic activity and potentially regulates the mammalian noncoding transcriptome. Here we generated a mouse model in which the essential subunit Exosc3 of the RNA exosome complex can be conditionally deleted. Exosc3-deficient B cells lack the ability to undergo normal levels of class switch recombination and somatic hypermutation, two mutagenic DNA processes used to generate antibody diversity via the B-cell mutator protein activation-induced cytidine deaminase (AID). The transcriptome of Exosc3-deficient B cells has revealed the presence of many novel RNA exosome substrate ncRNAs. RNA exosome substrate RNAs include xTSS-RNAs, transcription start site (TSS)-associated antisense transcripts that can exceed 500 base pairs in length and are transcribed divergently from cognate coding gene transcripts. xTSS-RNAs are most strongly expressed at genes that accumulate AID-mediated somatic mutations and/or are frequent translocation partners of DNA double-strand breaks generated at Igh in B cells. Strikingly, translocations near TSSs or within gene bodies occur over regions of RNA exosome substrate ncRNA expression. These RNA exosome-regulated, antisense-transcribed regions of the B-cell genome recruit AID and accumulate single-strand DNA structures containing RNA-DNA hybrids. We propose that RNA exosome regulation of ncRNA recruits AID to single-strand DNA-forming sites of antisense and divergent transcription in the B-cell genome, thereby creating a link between ncRNA transcription and overall maintenance of B-cell genomic integrity.

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Metadata

Authors
Pefanis, E., Wang, J., Rothschild, G., Lim, J., Chao, J., Rabadan, R., Economides, A. N., & Basu, U.
Affiliations
  • Columbia University (US)
  • Regeneron (United States) (US)
Corresponding author
Basu, Uttiya
Venue
Nature
Published
2014-08-06
Volume
514
Issue
7522
Pages
389-393
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1987152324
Cited by
201
References
40
Citations by year
2026: 19 · 2025: 12 · 2024: 15 · 2023: 17 · 2022: 14 · 2021: 15 · 2020: 14 · 2019: 15 · 2018: 18 · 2017: 15 · 2016: 22 · 2015: 19 · 2014: 6
FWCI
8.48
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Rare & Special e-Zone (The Hong Kong University of Science and Technology) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • National Institutes of Health (1dp2od008651-01)
  • National Cancer Institute (U54CA121852, R01CA185486, R01CA179044)
  • National Institute of Allergy and Infectious Diseases (R01AI099195)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA regulation and disease
Keywords
RNA exosome, EXOSC3, activation-induced cytidine deaminase, AID, non-coding RNA, antisense transcription, divergent transcription, class switch recombination, somatic hypermutation, R-loops, genomic instability, chromosomal translocation, B cells, conditional knockout mice, transcription start sites, antibody diversity, 3'-5' exoribonuclease
MeSH terms
AICDA (Activation-Induced Cytidine Deaminase), Animals, B-Lymphocytes, Cytidine Deaminase, DNA, Single-Stranded, Female, Immunoglobulin Heavy Chains, Male, Nucleic Acid Hybridization, Substrate Specificity, Transcription, Genetic, Translocation, Genetic, RNA, Antisense, RNA-Binding Proteins, Genome, Immunoglobulin Class Switching, Base Pairing, RNA, Untranslated, Transcription Initiation Site, Somatic Hypermutation, Immunoglobulin, Genomic Instability, Mice, DNA Breaks, Double-Stranded, Exosomes, Exosome Multienzyme Ribonuclease Complex

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