title: A resistance-nodulation-cell division family xenobiotic efflux pump in an obligate anaerobe, Porphyromonas gingivalis.
abstract: Porphyromonas gingivalis, a gram-negative obligate anaerobe, contains two homologs of an Escherichia coli resistance-nodulation-cell division-type multidrug exporter gene, acrB, in putative operons, together with homologs of membrane fusion protein gene acrA and outer membrane channel gene tolC. MIC determination and accumulation assays with mutants with disruptions of one or more genes showed that one cluster, named xepCAB, pumped out multiple agents including rifampin, puromycin, and ethidium bromide.
authors.affiliation: Department of Microbiology, School of Dentistry, Aichi-Gakuin University, Nagoya 464-8650, Japan. takeshii@dpc.aichi-gakuin.ac.jp
authors.forename: Takeshi
authors.initials: T
authors.lastname: Ikeda
authors.forename: Fuminobu
authors.initials: F
authors.lastname: Yoshimura
mesh_terms: D000693:Anaerobiosis; D000900:Anti-Bacterial Agents / Q000378:metabolism / Q000494:pharmacology; D001426:Bacterial Proteins / Q000235:genetics / Q000378:metabolism*; D002352:Carrier Proteins / Q000235:genetics / Q000378:metabolism*; D024901:Drug Resistance, Multiple, Bacterial; D004926:Escherichia coli / Q000235:genetics / Q000378:metabolism; D029968:Escherichia coli Proteins; D008565:Membrane Proteins; D008826:Microbial Sensitivity Tests; D027425:ATP-Binding Cassette, Sub-Family C Proteins; D005810:Multigene Family; D016966:Porphyromonas gingivalis / Q000187:drug effects* / Q000378:metabolism*; D015262:Xenobiotics / Q000378:metabolism* / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D001426:Bacterial Proteins; D002352:Carrier Proteins; D029968:Escherichia coli Proteins; D008565:Membrane Proteins; D027425:ATP-Binding Cassette, Sub-Family C Proteins; D015262:Xenobiotics; C083496:AcrB protein, E coli