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- W4387431946 abstract "Abstract Aim Recombinase RecA and its homologs play a key role in homologous recombination DNA repair and revive stalled replication fork DNA synthesis. RecA plays an essential role in the evolution of antibiotic-resistant strains via stress-induced DNA repair mechanisms during the SOS response. Accordingly, RecA has become an attractive target to slow down antibiotic resistance rates and prevent mutations in pathogenic bacterial species. Methods and results We employed RecA conserved activities: DNA binding, displacement loop formation, strand exchange, ATP hydrolysis, and LexA cleavage, to elucidate the inhibitory role of gallic acid on S. aureus RecA functions. Gallic acid inhibition of the SOS response by western blot analysis and its antibacterial activity were measured. The gallic acid inhibited all the canonical activities of S. aureus RecA protein. Conclusion The natural phenolic compound gallic acid interferes with RecA protein DNA complex formation and inhibits activities such as displacement loop formation, strand exchange reaction, ATP hydrolysis, and coprotease activity of S. aureus. Additionally, gallic acid can obstruct ciprofloxacin-induced RecA expression and eventually confer the inhibitory role of gallic acid in the SOS survival mechanism in S. aureus." @default.
- W4387431946 created "2023-10-09" @default.
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- W4387431946 date "2023-10-06" @default.
- W4387431946 modified "2023-10-09" @default.
- W4387431946 title "Gallic acid inhibits Staphylococcus aureus RecA protein functions: role in countering antibiotic resistance in bacteria" @default.
- W4387431946 doi "https://doi.org/10.1093/jambio/lxad227" @default.
- W4387431946 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37804166" @default.
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