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Biochemical Characterization of the Subclass B3 Metallo-β-Lactamase PJM-1 from Pseudoxanthomonas japonensis
被引:3
|作者:
Yamada, Kageto
[1
]
Ishii, Yoshikazu
[1
]
Tateda, Kazuhiro
[1
]
机构:
[1] Toho Univ, Dept Microbiol & Infect Dis, Sch Med, Ota Ku, Tokyo, Japan
关键词:
MBL;
PJM-1;
Pseudoxanthomonas japonensis;
PSEUDOMONAS-AERUGINOSA;
SP-NOV;
D O I:
10.1128/aac.00691-22
中图分类号:
Q93 [微生物学];
学科分类号:
071005 ;
100705 ;
摘要:
Biochemical properties of the novel subclass B3 metallo-beta-lactamase (MBL) PJM-1 expressed in Pseudoxanthomonas japonensis, which is often isolated from the environment, were determined. The 906-bp bla(PJM-1) gene in P. japonensis is a species-specific MBL gene, and PJM, with 301 predicted amino acids, has 81.8% amino acid identity with AIM-1. In this study, PJM-1 was recombinantly expressed and purified. PJM-1 showed a low catalytic activity against ceftazidime and cefepime, and it was strongly inhibited by EDTA.
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页数:5
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