| Literature DB >> 19596884 |
Paul G Higgins1, Adriana E Rosato, Harald Seifert, Gordon L Archer, Hilmar Wisplinghoff.
Abstract
Excision of staphylococcal cassette chromosome mec (SCCmec) is mediated through the ccrA- and -B-encoded recombinases. We investigated the effects of different antimicrobial agents on ccrA expression by using a ccrA::lacZ fusion and reverse transcription-PCR with methicillin (meticillin)-resistant Staphylococcus aureus strains MW2 (SCCmec IVa) and N315 (SCCmec II). Upregulation of ccrA was observed upon exposure to beta-lactam antibiotics. Vancomycin increased ccrA expression in MW2 but had no effect on N315. Vancomycin may contribute to the transfer of SCCmec IVa but have no effect in SCCmec II.Entities:
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Year: 2009 PMID: 19596884 PMCID: PMC2764196 DOI: 10.1128/AAC.00395-09
Source DB: PubMed Journal: Antimicrob Agents Chemother ISSN: 0066-4804 Impact factor: 5.191