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OXA-253, a variant of the carbapenem-hydrolyzing class D β-Lactamase OXA-143 in Acinetobacter baumannii

Girlich, Delphine ; Damaceno, Quésia S. ; Oliveira, Adriana Cristina ; Nordmann, Patrice

In: Antimicrobial Agents and Chemotherapy, 2014, vol. 58, no. 5, p. 2976–2978

The carbapenem-hydrolyzing class D β-lactamase OXA-253 was identified in an Acinetobacter baumannii clinical isolate belonging to sequence type 113 (ST113) in Brazil. OXA-253 shares 93.8% amino acid identity with OXA-143. The blaOXA-253 gene is located on a ca. 20-kb plasmid. The genetic environment of the blaOXA-253 gene shares the highest identity with...