Complete sequencing of plasmids containing blaOXA-163 and blaOXA-48 in Escherichia coli sequence type 131

Nicole Stoesser, Anna E. Sheppard, Gisele Peirano, Robert Sebra, Tarah Lynch, Luke Anson, Andrew Kasarskis, Mary R. Motyl, Derrick W. Crook, Johann D. Pitout

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

OXA-48-like enzymes have emerged as important extended-spectrum β-lactamases/carbapenemases in Escherichia coli sequence type 131 (ST131). We report the structures of the first fully sequenced blaOXA-163 plasmid and of two other blaOXA-48 plasmids in this lineage. blaOXA-163 was located on a 71-kb IncN plasmid with other resistance genes. blaOXA-48 was present on IncL/M plasmids, genetically similar to other blaOXA-48 plasmid sequences, and consistent with interspecies/interlineage spread. The presence of blaOXA-48-like genes on epidemic plasmids in ST131 is of concern.

Original languageEnglish
Pages (from-to)6948-6951
Number of pages4
JournalAntimicrobial Agents and Chemotherapy
Volume60
Issue number11
DOIs
StatePublished - 1 Nov 2016

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