A Novel New Delhi Metallo-β-Lactamase Variant, NDM-14, Isolated in a Chinese Hospital Possesses Increased Enzymatic Activity against Carbapenems

Author:

Zou Dayang,Huang Yong,Zhao Xiangna,Liu Wei,Dong Derong,Li Huan,Wang Xuesong,Huang Simo,Wei Xiao,Yan Xiabei,Yang Zhan,Tong Yigang,Huang Liuyu,Yuan Jing

Abstract

ABSTRACTA novel New Delhi metallo-β-lactamase (NDM) variant, NDM-14, was identified in clinical isolateAcinetobacter lwoffiiJN49-1, which was recovered from an intensive care unit patient at a local hospital in China. NDM-14, which differs from other existing enzymes by an amino acid substitution at position 130 (Asp130Gly), possesses enzymatic activity toward carbapenems that is greater than that of NDM-1. Kinetic data indicate that NDM-14 has a higher affinity for imipenem and meropenem.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

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