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Characterization of OXA-181, a carbapenem-hydrolyzing class D beta-lactamase from Klebsiella pneumoniae.

ABSTRACT: Klebsiella pneumoniae KP3 was isolated from a patient transferred from India to the Sultanate of Oman. K. pneumoniae KP3 was resistant to all ?-lactams, including carbapenems, and expressed the carbapenem-hydrolyzing ?-lactamase OXA-181, which differs from OXA-48 by four amino acid substitutions. Compared to OXA-48, OXA-181 possessed a very similar hydrolytic profile. The bla(OXA-181) gene was located on a 7.6-kb ColE-type plasmid and was linked to the insertion sequence ISEcp1. The ISEcp1-mediated one-ended transposition of bla(OXA-181) was also demonstrated.

SUBMITTER: Potron A

PROVIDER: S-EPMC3186949 | biostudies-literature | 2011 Oct

REPOSITORIES: biostudies-literature

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Characterization of OXA-181, a carbapenem-hydrolyzing class D beta-lactamase from Klebsiella pneumoniae.

Potron Anaïs A Nordmann Patrice P Lafeuille Emilie E Al Maskari Zaina Z Al Rashdi Fatma F Poirel Laurent L

Antimicrobial agents and chemotherapy 20110718 10

Klebsiella pneumoniae KP3 was isolated from a patient transferred from India to the Sultanate of Oman. K. pneumoniae KP3 was resistant to all β-lactams, including carbapenems, and expressed the carbapenem-hydrolyzing β-lactamase OXA-181, which differs from OXA-48 by four amino acid substitutions. Compared to OXA-48, OXA-181 possessed a very similar hydrolytic profile. The bla(OXA-181) gene was located on a 7.6-kb ColE-type plasmid and was linked to the insertion sequence ISEcp1. The ISEcp1-media ...[more]

PMID: 21768505

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