Rapid identification of carbapenemase-type blaGES and ESBL-type blaGES using multiplex PCR

J Microbiol Methods. 2018 May:148:117-119. doi: 10.1016/j.mimet.2018.03.016. Epub 2018 Mar 30.

Abstract

Guiana extended-spectrum (GES) β-lactamases are emerging in Japan. The GES family can be classified into 2 groups, one with extended-spectrum β-lactamase (ESBL)-like activity, which hydrolyzes penicillins and cephalosporins, and the other with carbapenemase-like activity with an extended spectrum toward carbapenems. This difference is mediated by variations in a specific amino acid in the GES protein: G170 N or G170S substitutions. We developed an amplification refractory mutation system (ARMS) PCR assay that enabled rapid identification of these variant genes without sequencing.

Keywords: ARMS-PCR; Carbapenemase; bla(GES).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bacteriological Techniques / methods*
  • Gram-Negative Bacteria / enzymology*
  • Gram-Negative Bacteria / isolation & purification
  • Gram-Negative Bacterial Infections / microbiology
  • Humans
  • Japan
  • Multiplex Polymerase Chain Reaction / methods*
  • Time Factors
  • beta-Lactamases / analysis
  • beta-Lactamases / classification
  • beta-Lactamases / genetics*

Substances

  • beta-Lactamases