Influence of Mutations in the mexR Repressor Gene on Expression of the MexA-MexB-OprM Multidrug Efflux System of Pseudomonas aeruginosa
AUTOR(ES)
Srikumar, Ramakrishnan
FONTE
American Society for Microbiology
RESUMO
Several nalB-type multidrug-resistant mutants of Pseudomonas aeruginosa overexpressed MexAB-OprM and carried mutations in the local regulatory gene, mexR. Others, dubbed nalC types, carried mutations elsewhere and overexpressed MexAB-OprM less extensively than the nalB strains. Available evidence showed that MexR acted solely as repressor. Disruption of the mexR gene at various places suggested that the 5′ end of mexR may be a part of the mexAB-oprM promoter.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=94430Documentos Relacionados
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