PMID:15808939

Citation	Rami, A, Toutain, CM and Jacq, A (2005) An increased level of alternative sigma factor RpoS partially suppresses drug hypersensitivity associated with inactivation of the multidrug resistance pump AcrAB in Escherichia coli. Res. Microbiol. 156:356-60
Abstract	Constitutive expression of stationary phase alternative sigma factor RpoS in Escherichia coli during the exponential phase was found to partially suppress drug sensitivity associated with an acrAB mutation that inactivates the major multidrug resistance pump, suggesting that Rpos might significantly contribute to multidrug resistance, underscoring yet another role for this important stress-related transcription factor.
Links	PubMed Online version:10.1016/j.resmic.2004.10.015
Keywords	Anti-Bacterial Agents/pharmacology; Bacterial Proteins/genetics; Bacterial Proteins/metabolism; Blotting, Western; Drug Resistance, Multiple, Bacterial/physiology; Endopeptidase Clp/genetics; Endopeptidase Clp/metabolism; Escherichia coli/drug effects; Escherichia coli/genetics; Escherichia coli/metabolism; Escherichia coli Proteins/antagonists & inhibitors; Escherichia coli Proteins/genetics; Escherichia coli Proteins/metabolism; Lipoproteins/antagonists & inhibitors; Lipoproteins/metabolism; Membrane Transport Proteins; Microbial Sensitivity Tests; Mutation; Sigma Factor/genetics; Sigma Factor/metabolism
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