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Antibiotic Resistance Plasmids Cointegrated into a Megaplasmid Harboring the blaOXA-427 Carbapenemase Gene

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ABSTRACT OXA-427 is a new class D carbapenemase encountered in different species of Enterobacteriaceae in a Belgian hospital. To study the dispersal of this gene, we performed a comparative analysis… Click to show full abstract

ABSTRACT OXA-427 is a new class D carbapenemase encountered in different species of Enterobacteriaceae in a Belgian hospital. To study the dispersal of this gene, we performed a comparative analysis of two plasmids containing the blaOXA-427 gene, isolated from a Klebsiella pneumoniae strain and an Enterobacter cloacae complex strain. The two IncA/C2 plasmids containing blaOXA-427 share the same backbone; in the K. pneumoniae strain, however, this plasmid is cointegrated into an IncFIb plasmid, forming a 321-kb megaplasmid with multiple multiresistance regions.

Keywords: carbapenemase; resistance plasmids; blaoxa 427; antibiotic resistance; gene

Journal Title: Antimicrobial Agents and Chemotherapy
Year Published: 2018

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