Antibiotic Inducibility of the MexXY Multidrug Efflux System of Pseudomonas aeruginosa : Involvement of the Antibiotic-Inducible PA5471 Gene Product
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منابع مشابه
Antibiotic inducibility of the MexXY multidrug efflux system of Pseudomonas aeruginosa: involvement of the antibiotic-inducible PA5471 gene product.
The MexXY components of the MexXY-OprM multidrug efflux system of Pseudomonas aeruginosa are encoded by a MexZ repressor-regulated operon that is inducible by antibiotics that target the ribosome. Mutant strains disrupted in a gene, PA5471, were shown to be compromised for drug-inducible mexXY expression and, therefore, MexXY-OprM-mediated antimicrobial resistance. The PA5471 gene was inducible...
متن کاملAntibiotic Inducibility of the mexXY Multidrug Efflux Operon of Pseudomonas aeruginosa: Involvement of the MexZ Anti-Repressor ArmZ
Expression of the mexXY multidrug efflux operon in wild type Pseudomonas aeruginosa is substantially enhanced by the ribosome-targeting antimicrobial spectinomycin (18-fold) and this is wholly dependent upon the product of the PA5471 gene. In a mutant strain lacking the mexZ gene encoding a repressor of mexXY gene expression, expression of the efflux operon increases modestly (5-fold) and is st...
متن کاملMexXY multidrug efflux system of Pseudomonas aeruginosa
Anti-pseudomonas aminoglycosides, such as amikacin and tobramycin, are used in the treatment of Pseudomonas aeruginosa infections. However, their use is linked to the development of resistance. During the last decade, the MexXY multidrug efflux system has been comprehensively studied, and numerous reports of laboratory and clinical isolates have been published. This system has been increasingly...
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Messadi AA, Lamia T, Kamel B, Salima O, Monia M, Saida BR. Association between antibiotic use and changes in susceptibility patterns of Pseudomonas aeruginosa in an intensive care burn unit: a 5-year study, 2000-2004. Burns :J Int Soc Burn Injuries 2008;34(8):1098-102. Sherertz RJ, Sarubbi FA. A three-year study of nosocomial infections associated with Pseudomonas aeruginosa. J Clin Micr...
متن کاملSynergistic Effect of Silver Nanoparticles and Streptomycin Antibiotic on the MexX Gene Expression of Pump Efflux System in Drug-Resistant Pseudomonas aeruginosa Strains
Introduction: Pseudomonas aeruginosa is one of the most important infectious agents in humans, which is difficult to control in hospitals due to its resistance to various antibiotics. Efflux pump systems play an important role in the drug resistance of this bacterium to a variety of antibiotics. This study aimed to determine the antimicrobial synergistic effect of silver nanoparticles and the a...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 2006
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.188.5.1847-1855.2006