First Report of blaIMP-14 on a Plasmid Harboring Multiple Drug Resistance Genes in Escherichia coli Sequence Type 131

Antimicrob Agents Chemother. 2016 Jul 22;60(8):5068-71. doi: 10.1128/AAC.00840-16. Print 2016 Aug.

Abstract

The blaIMP-14 carbapenem resistance gene has largely previously been observed in Pseudomonas aeruginosa and Acinetobacter spp. As part of global surveillance and sequencing of carbapenem-resistant Escherichia coli, we identified a sequence type 131 strain harboring blaIMP-14 within a class 1 integron, itself nested within an ∼54-kb multidrug resistance region on an epidemic IncA/C2 plasmid. The emergence of blaIMP-14 in this context in the ST131 lineage is of potential clinical concern.

MeSH terms

  • Acinetobacter / drug effects
  • Acinetobacter / enzymology
  • Acinetobacter / genetics
  • Anti-Bacterial Agents / pharmacology
  • Carbapenems / pharmacology
  • Drug Resistance, Multiple, Bacterial / genetics
  • Escherichia coli / drug effects*
  • Escherichia coli / enzymology*
  • Escherichia coli / genetics
  • Integrons / genetics
  • Microbial Sensitivity Tests
  • Plasmids / genetics*
  • Pseudomonas aeruginosa / drug effects
  • Pseudomonas aeruginosa / enzymology
  • Pseudomonas aeruginosa / genetics
  • beta-Lactamases / genetics
  • beta-Lactamases / metabolism*

Substances

  • Anti-Bacterial Agents
  • Carbapenems
  • beta-Lactamases