ArticleNucleic acids research2019
Uracil-DNA glycosylase UNG1 isoform variant supports class switch recombination and repairs nuclear genomic uracil.
Article in Nucleic acids research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 34 citations in OpenAlex.
- Genetic studies with a uracil DNA glycosylase biosensor support a role for mitochondrial UNG1 in nuclear uracil repair.Nucleic acids research · 2026Article
- Article
- What is in a name? Rethinking SMUG1 in genome maintenance.NAR cancer · 2025Review
- The kinetics of uracil-N-glycosylase distribution inside replication foci.Scientific reports · 2025Article
- Cytotoxic mechanisms of pemetrexed and HDAC inhibition in non-small cell lung cancer cells involving ribonucleotides in DNA.Scientific reports · 2025Article
- Unprocessed genomic uracil as a source of DNA replication stress in cancer cells.Molecular cell · 2024Article
- The Disassociation of A3G-Related HIV-1 cDNA G-to-A Hypermutation to Viral Infectivity.Viruses · 2024Article
- RPA guides UNG to uracil in ssDNA to facilitate antibody class switching and repair of mutagenic uracil at the replication fork.Nucleic acids research · 2024Article
- Divergent structures of Mammalian and gammaherpesvirus uracil DNA glycosylases confer distinct DNA binding and substrate activity.DNA repair · 2023Article
- Human DNA tumor viruses evade uracil-mediated antiviral immunity.PLoS pathogens · 2023Article
- Obstacles and opportunities for base excision repair in chromatin.DNA repair · 2022Review
- Early Life Stage Folic Acid Deficiency Delays the Neurobehavioral Development and Cognitive Function of Rat Offspring by Hindering De Novo Telomere Synthesis.International journal of molecular sciences · 2022Article
- The base excision repair process: comparison between higher and lower eukaryotes.Cellular and molecular life sciences : CMLS · 2021Review
- Article
- Review
- Genomic Uracil and Aberrant Profile of Demethylation Intermediates in Epigenetics and Hematologic Malignancies.International journal of molecular sciences · 2021Review
- RPA2 winged-helix domain facilitates UNG-mediated removal of uracil from ssDNA; implications for repair of mutagenic uracil at the replication fork.Nucleic acids research · 2021Article
- Focus on DNA Glycosylases-A Set of Tightly Regulated Enzymes with a High Potential as Anticancer Drug Targets.International journal of molecular sciences · 2020Review
- HDACi mediate UNG2 depletion, dysregulated genomic uracil and altered expression of oncoproteins and tumor suppressors in B- and T-cell lines.Journal of translational medicine · 2020Article
Corrections and comments
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
UNG is the major uracil-DNA glycosylase in mammalian cells and is involved in both error-free base excision repair of genomic uracil and mutagenic uracil-processing at the antibody genes. However, the regulation of UNG in these different processes is currently not well understood. The UNG gene encodes two isoforms, UNG1 and UNG2, each possessing unique N-termini that mediate translocation to the mitochondria and the nucleus, respectively. A strict subcellular localization of each isoform has been widely accepted despite a lack of models to study them individually. To determine the roles of each isoform, we generated and characterized several UNG isoform-specific mouse and human cell lines. We identified a distinct UNG1 isoform variant that is targeted to the cell nucleus where it supports antibody class switching and repairs genomic uracil. We propose that the nuclear UNG1 variant, which in contrast to UNG2 lacks a PCNA-binding motif, may be specialized to act on ssDNA through its ability to bind RPA. RPA-coated ssDNA regions include both transcribed antibody genes that are targets for deamination by AID and regions in front of the moving replication forks. Our findings provide new insights into the function of UNG isoforms in adaptive immunity and DNA repair.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.