ArticleNucleic acids research2025
A conserved nuclease facilitates environmental DNA uptake.
Article in Nucleic acids research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Structural insights into RNA recognition by theProceedings of the National Academy of Sciences of the United States of America · 2026Article
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14 authors.
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Abstract
Bacteria acquire new traits through the uptake of genetic material from the environment, a process requiring DNA processing. However, the molecular inventory mediating this process is far from being completely understood. Here, we identify YhaM in Bacillus subtilis as a conserved 3'-deoxyribonuclease essential for the uptake and processing of genetic information in the form of single-stranded DNA. Our results show that YhaM assembles into hexamers in the presence of divalent cations, enhancing substrate binding, which is achieved through its conserved oligonucleotide-binding domain. Cells lacking YhaM show a severe defect in the uptake of plasmids and genomic DNA, but the transduction of double-stranded DNA by the phage SPP1 remains unaffected. These findings highlight a critical role of YhaM in single-stranded DNA maturation during natural transformation. Importantly, this function is conserved in various Gram-positive human pathogens such as Staphylococcus aureus, suggesting that it could contribute to the spread of antibiotic resistance.
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