EmrAB-TolC

Accession ARO:3000344
DefinitionEmrAB-TolC is a multidrug efflux system found in E. coli. EmrB is the electrochemical-gradient powered transporter; EmrA is the linker; and TolC is the outer membrane channel. It confers resistance to nalidixic acid and thiolactomycin.
AMR Gene Familymajor facilitator superfamily (MFS) antibiotic efflux pump
Drug Classfluoroquinolone antibiotic
Resistance Mechanismantibiotic efflux
Efflux Componentefflux pump complex or subunit conferring antibiotic resistance
Classification7 ontology terms | Show
Parent Term(s)2 ontology terms | Show
+ major facilitator superfamily (MFS) antibiotic efflux pump [AMR Gene Family]
+ confers_resistance_to_antibiotic nalidixic acid [Antibiotic]
Sub-Term(s)
4 ontology terms | Show
+ emrA part_of
+ emrB part_of
+ TolC part_of
+ emrR regulates
Publications

Lomovskaya O, et al. 1995. J Bacteriol 177(9): 2328-2334. EmrR is a negative regulator of the Escherichia coli multidrug resistance pump EmrAB. (PMID 7730261)

Resistomes

Prevalence of EmrAB-TolC among the sequenced genomes, plasmids, and whole-genome shotgun assemblies available at NCBI for 82 important pathogens (see methodological details and complete list of analyzed pathogens). Values reflect percentage of genomes, plasmids, or whole-genome shotgun assemblies that have at least one hit to the AMR detection model. Default view includes percentages calculated based on Perfect plus Strict RGI hits. Select the checkbox to view percentages based on only Perfect matches to AMR reference sequences curated in CARD (note: this excludes resistance via mutation as references in protein variant models are often wild-type, sensitive sequences).

Prevalence: efflux pump system meta-model

SpeciesNCBI ChromosomeNCBI PlasmidNCBI WGS
No prevalence data


Detection Models

Model Name: EmrAB-TolC

Model Description: EmrAB-TolC is a multidrug efflux system found in E. coli. EmrB is the electrochemical-gradient powered transporter; EmrA is the linker; and TolC is the outer membrane channel. It confers resistance to nalidixic acid and thiolactomycin.

emrRemrAtolCemrB