VmrA, a Member of a Novel Class of Na + -Coupled Multidrug Efflux Pumps from Vibrio parahaemolyticus

Author:

Chen Jing1,Morita Yuji1,Huda M. Nazmul1,Kuroda Teruo1,Mizushima Tohru1,Tsuchiya Tomofusa1

Affiliation:

1. Department of Microbiology, Faculty of Pharmaceutical Sciences, Okayama University, Tsushima, Okayama 700-8530, Japan

Abstract

ABSTRACT Gene vmrA , cloned from Vibrio parahaemolyticus , made Escherichia coli resistant to 4prime;,6-diamino-2-phenylindol, tetraphenylphosphonium chloride, acriflavine, and ethidium bromide. VmrA belongs to the DinF branch of MATE family efflux transporters. VmrA catalyzed acriflavine efflux and showed Na + /drug transporter activity because the addition of tetraphenylphosphonium to Na + -loaded cells caused Na + efflux.

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

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