| Literature DB >> 29866857 |
Laura Dabos1,2, Pierre Bogaerts3,4, Remy A Bonnin1,2,5, Agustin Zavala6, Pierre Sacré3,4, Bogdan I Iorga6, Daniel T Huang3,4, Youri Glupczynski3,4, Thierry Naas7,2,5,8.
Abstract
A multidrug-resistant Klebsiella pneumoniae 1210 isolate with reduced carbapenem susceptibility revealed the presence of a novel plasmid-encoded blaOXA-48-like gene, named blaOXA-519 The 60.7-kb plasmid (pOXA-519) was similar to the IncL-OXA-48 prototypical plasmid except for a ca. 2-kb deletion due to an IS1R insertion. OXA-519 differed from OXA-48 by a Val120Leu substitution, which resulted in an overall reduced β-lactam-hydrolysis profile, except those for ertapenem and meropenem, which were increased. Thus, detection of OXA-519 producers using biochemical tests that monitor imipenem hydrolysis will be difficult.Entities:
Keywords: OXA-48 like; carbapenemase; detection; mutant; steady-state kinetics
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Year: 2018 PMID: 29866857 PMCID: PMC6105830 DOI: 10.1128/AAC.00469-18
Source DB: PubMed Journal: Antimicrob Agents Chemother ISSN: 0066-4804 Impact factor: 5.191