Characterisation of OXA-51, a novel class D carbapenemase found in genetically unrelated clinical strains of Acinetobacter baumannii from Argentina.

Key Findings

OXA-51, a novel class D carbapenemase, was identified in genetically unrelated carbapenem-resistant Acinetobacter baumannii strains from Argentina. It exhibits high affinity for imipenem and shows less than 63% amino acid identity with existing subgroups of carbapenem-hydrolysing β-lactamases.