ArticleNucleic acids research2023
Glycidamide-induced hypermutation in yeast single-stranded DNA reveals a ubiquitous clock-like mutational motif in humans.
Article in Nucleic acids research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 10 citations in OpenAlex.
- Motif-centered analyses reveal universal and tissue-specific mutagenic mechanisms operating in the human body.NAR cancer · 2026Article
- APOBEC3A is the predominant global editor of cytosines in human mRNAs and in single-strand RNA viruses.G3 (Bethesda, Md.) · 2026Article
- Motif-Centered Analyses Reveal Universal and Tissue-Specific Mutagenic Mechanisms Operating in the Human Body.bioRxiv : the preprint server for biology · 2026Article
- Comparative whole-genome analyses of articular chondrocytes and skin fibroblasts reveal distinct genome instability landscapes in mesenchymal cell types.PLoS genetics · 2026Article
- Increased replication-associated single-stranded DNA promotes formaldehyde-induced mutagenesis.bioRxiv : the preprint server for biology · 2026Article
- Comparative whole-genome analyses of articular chondrocytes and skin fibroblasts reveal distinct genome instability landscapes in mesenchymal cell types.bioRxiv : the preprint server for biology · 2026Article
- APOBEC3A is the predominant global editor of cytosines in human mRNAs and in single-strand RNA viruses.bioRxiv : the preprint server for biology · 2026Article
- Chemical and biological characterization of glycidamide-adducted adenine in DNA.The Journal of biological chemistry · 2025Article
- Translesion polymerases and DNA-protein crosslink repair shapes the cellular response to formaldehyde-induced DNA damage in ssDNA.Nucleic acids research · 2025Article
- POLE Deficiency Exacerbates Diesel Engine Exhaust-Induced Genomic Instability and Malignant Transformation of Bronchial Epithelial Cells.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Environmental carcinogens often exacerbate endogenous mutagenic processes to enhance tumor promotion.Cell reports · 2025Article
- Multi‑omics analysis identifies different molecular subtypes with unique outcomes in early-stage poorly differentiated lung adenocarcinoma.Molecular cancer · 2025Article
- Hypomorphic mutation in the large subunit of replication protein A affects mutagenesis by human APOBEC cytidine deaminases in yeast.G3 (Bethesda, Md.) · 2024Article
- Hypomorphic mutation in the large subunit of replication protein A affects mutagenesis by human APOBEC cytidine deaminases in yeast.bioRxiv : the preprint server for biology · 2024Article
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Authors and funding
8 authors at 4 institutions in 3 countries.
Funding
Abstract
Mutagens often prefer specific nucleotides or oligonucleotide motifs that can be revealed by studying the hypermutation spectra in single-stranded (ss) DNA. We utilized a yeast model to explore mutagenesis by glycidamide, a simple epoxide formed endogenously in humans from the environmental toxicant acrylamide. Glycidamide caused ssDNA hypermutation in yeast predominantly in cytosines and adenines. The most frequent mutations in adenines occurred in the nAt→nGt trinucleotide motif. Base substitutions A→G in this motif relied on Rev1 translesion polymerase activity. Inactivating Rev1 did not alter the nAt trinucleotide preference, suggesting it may be an intrinsic specificity of the chemical reaction between glycidamide and adenine in the ssDNA. We found this mutational motif enriched in published sequencing data from glycidamide-treated mouse cells and ubiquitous in human cancers. In cancers, this motif was positively correlated with the single base substitution (SBS) smoking-associated SBS4 signature, with the clock-like signatures SBS1, SBS5, and was strongly correlated with smoking history and with age of tumor donors. Clock-like feature of the motif was also revealed in cells of human skin and brain. Given its pervasiveness, we propose that this mutational motif reflects mutagenic lesions to adenines in ssDNA from a potentially broad range of endogenous and exogenous agents.
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