Genetic features of blaNDM-1-positive Enterobacteriaceae

Antimicrob Agents Chemother. 2011 Nov;55(11):5403-7. doi: 10.1128/AAC.00585-11. Epub 2011 Aug 22.

Abstract

Genetic features associated with the bla(NDM-1) gene were investigated in 6 Escherichia coli, 7 Klebsiella pneumoniae, 1 Citrobacter freundii, 1 Proteus mirabilis, and 1 Providencia stuartii isolate of worldwide origin. Clonal diversity was observed for both E. coli and K. pneumoniae. The bla(NDM-1) gene was carried by different plasmid types (IncA/C, IncF, IncL/M, or untypeable) and was likely chromosome borne in two isolates. The bla(NDM-1) plasmids coharbored a variety of resistance determinants, including β-lactamase genes, quinolone resistance genes, and 16S RNA methylase genes.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents / pharmacology
  • Bacterial Proteins / genetics
  • Citrobacter freundii / drug effects
  • Citrobacter freundii / enzymology
  • Citrobacter freundii / genetics
  • Drug Resistance, Bacterial / genetics
  • Enterobacteriaceae / drug effects
  • Enterobacteriaceae / enzymology*
  • Enterobacteriaceae / genetics*
  • Escherichia coli / drug effects
  • Escherichia coli / enzymology
  • Escherichia coli / genetics
  • Klebsiella pneumoniae / drug effects
  • Klebsiella pneumoniae / enzymology
  • Klebsiella pneumoniae / genetics
  • Methyltransferases / genetics
  • Microbial Sensitivity Tests
  • Plasmids / genetics
  • Proteus mirabilis / drug effects
  • Proteus mirabilis / enzymology
  • Proteus mirabilis / genetics
  • beta-Lactamases / genetics*

Substances

  • Anti-Bacterial Agents
  • Bacterial Proteins
  • Methyltransferases
  • beta-Lactamases