EvgA of the Two-Component Signal Transduction System Modulates Production of the YhiUV Multidrug Transporter in Escherichia coli

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Abstract
Overexpression of the EvgA regulator of the two-component signal transduction system was previously found to modulate multidrug resistance of Escherichia coli by increasing efflux of drugs (K. Nishino and A. Yamaguchi, J. Bacteriol. 183:1455-1458, 2001). Here we present data showing that EvgA contributes to multidrug resistance through increased expression of the multidrug transporter yhiUV gene.