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NDM-12, a Novel New Delhi Metallo-β-Lactamase Variant from a Carbapenem-Resistant Escherichia coli Clinical Isolate in Nepal
被引:31
|作者:
Tada, Tatsuya
[1
]
Shrestha, Basudha
Miyoshi-Akiyama, Tohru
[1
]
Shimada, Kayo
[1
]
Ohara, Hiroshi
[2
]
Kirikae, Teruo
[1
]
Pokhrel, Bharat M.
[3
]
机构:
[1] Natl Ctr Global Hlth & Med, Dept Infect Dis, Res Inst, Shinjuku Ku, Tokyo, Japan
[2] Natl Ctr Global Hlth & Med, Dept Int Med Cooperat, Shinjuku Ku, Tokyo, Japan
[3] Tribhuvan Univ, Inst Med, Dept Microbiol, Kathmandu, Nepal
关键词:
ACINETOBACTER-BAUMANNII;
PSEUDOMONAS-AERUGINOSA;
MOLECULAR CHARACTERIZATION;
BIOCHEMICAL-CHARACTERIZATION;
SERRATIA-MARCESCENS;
CRYSTAL-STRUCTURE;
MULTIPLEX PCR;
GENE;
INTEGRON;
SUBCLASS;
D O I:
10.1128/AAC.03355-14
中图分类号:
Q93 [微生物学];
学科分类号:
071005 ;
100705 ;
摘要:
A novel New Delhi metallo-beta-lactamase variant, NDM-12, was identified in a carbapenem-resistant Escherichia coli clinical isolate obtained from a urine sample from a patient in Nepal. NDM-12 differed from NDM-1 by two amino acid substitutions (M154L and G222D). The enzymatic activities of NDM-12 against beta-lactams were similar to those of NDM-1, although NDM-12 showed lower k(cat)/K-m ratios for all beta-lactams tested except doripenem. The bla(NDM-12) gene was located in a plasmid of 160 kb.
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页码:6302 / 6305
页数:4
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