Expression of multidrug efflux pump genes acrAB-tolC, mdfA, and norE in Escherichia coli clinical isolates as a function of fluoroquinolone and multidrug resistance.

Abstract:

:In a single quantitative study, we measured acrA, acrB, tolC, mdfA, and norE expression in Escherichia coli clinical isolates by using real-time PCR. acrA and acrB overexpression strongly correlated with fluoroquinolone and multidrug resistance; tolC, mdfA, and norE expression did not. The order of abundance of efflux pump transcripts in all fluoroquinolone-susceptible isolates was tolC (highest), then acrA and acrB, and then mdfA and norE. Our findings suggest acrAB overexpression is an indicator of multidrug resistance.

authors

Swick MC,Morgan-Linnell SK,Carlson KM,Zechiedrich L

doi

10.1128/AAC.00996-10

subject

Has Abstract

pub_date

2011-02-01 00:00:00

pages

921-4

issue

2

eissn

0066-4804

issn

1098-6596

pii

AAC.00996-10

journal_volume

55

pub_type

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