Effects of a plasmid-encoded qnrA1 determinant in Escherichia coli strains carrying chromosomal mutations in the acrAB efflux pump genes

被引:18
作者
Jeong, Jin-Yong [1 ,2 ,4 ]
Kim, Eun Sil [1 ,2 ]
Choi, Sang-Ho [1 ,2 ]
Kwon, Hyun-Hee [1 ,2 ]
Lee, Sang-Rok [1 ,2 ]
Lee, Sang-Oh [1 ,2 ]
Kim, Mi-Na [3 ]
Woo, Jun Hee [1 ,2 ]
Kim, Yang Soo [1 ,2 ]
机构
[1] Univ Ulsan, Coll Med, Div Infect Dis, Asan Med Ctr, Seoul 138736, South Korea
[2] Univ Ulsan, Ctr Antimicrobial Resistance & Microbial Genet, Seoul 138736, South Korea
[3] Univ Ulsan, Coll Med, Asan Med Ctr, Dept Lab Med, Seoul 138736, South Korea
[4] Univ Ulsan, Coll Med, Asan Inst Life Sci, Seoul 138736, South Korea
关键词
plasmid-mediated quinolone resistance; qnrA1; AcrAB efflux pump;
D O I
10.1016/j.diagmicrobio.2007.07.015
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
The qnrA1 gene was cloned into a plasmid vector and transformed into Escherichia coli strains carrying chromosomal mutations in the acrAB drug efflux system. In acrAB-deleted strains, and in strains overexpressing acrAB, viable qnrA conferred higher MIC levels (at least a 32-fold increase) for fluoroquinolones than were observed in the parent strains. (c) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码:105 / 107
页数:3
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