| Literature DB >> 28630179 |
Choon Keun Kim1, Catarina Milheiriço1,2, Hermínia de Lencastre1,2, Alexander Tomasz3.
Abstract
Studies with methicillin-resistant Staphylococcus aureus (MRSA) strain COL have shown that the optimal resistance phenotype requires not only mecA but also a large number of "auxiliary genes" identified by Tn551 mutagenesis. The majority of auxiliary mutants showed greatly increased levels of oxacillin resistance when grown in the presence of sub-MICs of mupirocin, suggesting that the mechanism of reduced resistance in the auxiliary mutants involved the interruption of a stringent stress response, causing reduced production of penicillin-binding protein 2A (PBP 2A).Entities:
Keywords: auxiliary genes; oxacillin resistance expression; stress response
Mesh:
Substances:
Year: 2017 PMID: 28630179 PMCID: PMC5527599 DOI: 10.1128/AAC.00313-17
Source DB: PubMed Journal: Antimicrob Agents Chemother ISSN: 0066-4804 Impact factor: 5.191