The CpxR/CpxA two-component regulatory system up-regulates the multidrug resistance cascade to facilitate Escherichia coli resistance to a model antimicrobial …

N Weatherspoon-Griffin, D Yang, W Kong, Z Hua… - Journal of Biological …, 2014 - ASBMB
A genome-wide susceptibility assay was used to identify specific CpxR-dependent genes
that facilitate Escherichia coli resistance to a model cationic antimicrobial peptide …

Contributions of MexAB-OprM and an EmrE Homolog to Intrinsic Resistance of Pseudomonas aeruginosa to Aminoglycosides and Dyes

XZ Li, K Poole, H Nikaido - Antimicrobial agents and …, 2003 - Am Soc Microbiol
Of the six putative small multidrug resistance (SMR) family proteins of Pseudomonas
aeruginosa, a protein encoded by the PA4990 gene (emrE Pae) shows the highest identity …

Broad‐spectrum antimicrobial peptide resistance by MprF‐mediated aminoacylation and flipping of phospholipids

CM Ernst, A Peschel - Molecular microbiology, 2011 - Wiley Online Library
Bacteria are frequently exposed to cationic antimicrobial peptides (CAMPs) from eukaryotic
hosts (host defence peptides) or from prokaryotic competitors (bacteriocins). However, many …

Characterization of MexE–MexF–OprN, a positively regulated multidrug efflux system of Pseudomonas aeruginosa

T Ko¨ hler, M Michéa‐Hamzehpour… - Molecular …, 1997 - Wiley Online Library
Antibiotic‐resistant mutants of Pseudomonas aeruginosa were generated using
chloramphenicol and ciprofloxacin as selective agents. These mutants displayed a multidrug …

Mechanisms of antimicrobial peptide action and resistance

MR Yeaman, NY Yount - Pharmacological reviews, 2003 - ASPET
Antimicrobial peptides have been isolated and characterized from tissues and organisms
representing virtually every kingdom and phylum, ranging from prokaryotes to humans. Yet …

Multiple antibiotic resistance in Pseudomonas aeruginosa: evidence for involvement of an efflux operon

K Poole, K Krebes, C McNally, S Neshat - Journal of bacteriology, 1993 - Am Soc Microbiol
An outer membrane protein of 50 kDa (OprK) was overproduced in a siderophore-deficient
mutant of Pseudomonas aeruginosa capable of growth on iron-deficient minimal medium …

RNA-dependent lipid remodeling by bacterial multiple peptide resistance factors

H Roy, M Ibba - Proceedings of the National Academy of …, 2008 - National Acad Sciences
Multiple peptide resistance (MprF) virulence factors control cellular permeability to cationic
antibiotics by aminoacylating inner membrane lipids. It has been shown previously that one …

The phenazine pyocyanin is a terminal signalling factor in the quorum sensing network of Pseudomonas aeruginosa

LEP Dietrich, A Price‐Whelan, A Petersen… - Molecular …, 2006 - Wiley Online Library
Certain members of the fluorescent pseudomonads produce and secrete phenazines. These
heterocyclic, redox‐active compounds are toxic to competing organisms, and the cause of …

Polyphosphate kinase is essential for biofilm development, quorum sensing, and virulence of Pseudomonas aeruginosa

MH Rashid, K Rumbaugh, L Passador… - Proceedings of the …, 2000 - National Acad Sciences
The human opportunistic pathogen Pseudomonas aeruginosa causes a variety of infections
in immunocompromised hosts and in individuals with cystic fibrosis. A knockout mutation in …

MexAB‐OprM hyperexpression in NalC‐type multidrug‐resistant Pseudomonas aeruginosa: identification and characterization of the nalC gene encoding a …

L Cao, R Srikumar, K Poole - Molecular microbiology, 2004 - Wiley Online Library
MexAB‐OprM is a multidrug efflux system that contributes to intrinsic and acquired multidrug
resistance in Pseudomonas aeruginosa, the latter as a result of mutational hyperexpression …