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J Antimicrob Chemother. 2001 Feb;47(2):207-10.

Plasmid-mediated and inducible cephalosporinase DHA-2 from Klebsiella pneumoniae.

Author information

1
Service de Bactériologie-Virologie, Hôpital de Bicêtre, Assistance Publique/Hôpitaux de Paris, Faculté de Médecine Paris-Sud, 94275 Le Kremlin-Bicêtre, France.

Abstract

A Klebsiella pneumoniae strain resistant to cefoxitin and oxyimino-cephalosporins was cultured from a child hospitalized in Paris, France, in 1992. This isolate harboured a beta-lactamase gene located on an approximately 200 kb non-self-transferable plasmid. The beta-lactamase identified, DHA-2, shared 99% amino acid identity with the AmpC enzyme of Morganella morganii. DHA-2 was a point-mutant derivative of DHA-1 identified previously in a Salmonella enteritidis isolate. DHA-2 expression was inducible due to an ampR regulatory gene. This is the first report of an inducible and plasmid-located cephalosporinase from K. pneumoniae.

PMID:
11157909
DOI:
10.1093/jac/47.2.207
[Indexed for MEDLINE]

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