High-level fluoroquinolone-resistant clinical isolates of Escherichia coli overproduce multidrug efflux protein AcrA.

High-level fluoroquinolone-resistant clinical isolates of Escherichia coli overproduce multidrug efflux protein AcrA.
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高水平氟喹诺酮耐药临床大肠杆菌分离株过量产生多药外排蛋白 AcrA。

DOI:
10.1128/aac.44.12.3441-3443.2000
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发表时间:
2000
影响因子:
4.9
通讯作者:
Nikaido,H
Nikaido,H
中科院分区:
医学2区
文献类型:
--
作者:
Mazzariol,A;Tokue,Y;Kanegawa,TM;Cornaglia,G;Nikaido,H

文献摘要

相似文献

AcrA是AcrAB多药外排系统的一个必需成分,用AcrA抗体进行免疫印迹,结果表明,在10株具有高水平环丙沙星耐药(MIC,≥32 μg/ml)的大肠埃希菌临床分离株中,有9株AcrA蛋白过表达≥170%,而在MIC ≤1 μg/ml的15株大肠埃希菌中无一株过表达。
Immunoblotting with antibody against AcrA, an obligatory component of the AcrAB multidrug efflux system, showed that this protein was overexpressed by ≥170% in 9 of 10 clinical isolates ofEsherichia coliwith high-level ciprofloxacin resistance (MICs, ≥32 μg/ml) but not in any of the 15 isolates for which the MIC was ≤1 μg/ml.