| Accession | ARO:3003049 |
| CARD Short Name | rosB |
| Definition | rosB is part of an efflux pump/potassium antiporter system (RosAB) in Yersinia that confers resistance to cationic antimicrobial peptides such as polymyxin B. |
| AMR Gene Family | major facilitator superfamily (MFS) antibiotic efflux pump |
| Drug Class | peptide antibiotic |
| Resistance Mechanism | antibiotic efflux |
| Efflux Component | efflux pump complex or subunit conferring antibiotic resistance |
| Classification | 16 ontology terms | Show + process or component of antibiotic biology or chemistry + antibiotic molecule + peptide antibiotic [Drug Class] + lipopeptide antibiotic + mechanism of antibiotic resistance + antibiotic mixture + determinant of antibiotic resistance + antibiotic efflux [Resistance Mechanism] + polymyxin antibiotic + polymyxin B [Antibiotic] + efflux pump complex or subunit conferring antibiotic resistance [Efflux Component] + polymyxin B4 [Antibiotic] + polymyxin B3 [Antibiotic] + polymyxin B2 [Antibiotic] + polymyxin B1 [Antibiotic] + major facilitator superfamily (MFS) antibiotic efflux pump [AMR Gene Family] |
| Parent Term(s) | 2 ontology terms | Show |
| Publications | Bengoechea JA, et al. 2000. Mol Microbiol 37(1): 67-80. Temperature-regulated efflux pump/potassium antiporter system mediates resistance to cationic antimicrobial peptides in Yersinia. (PMID 10931306) |
Prevalence of rosB among the sequenced genomes, plasmids, and whole-genome shotgun assemblies available at NCBI or IslandViewer for 413 important pathogens (see methodological details and complete list of analyzed pathogens). Values reflect percentage of genomes, plasmids, genome islands, 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).
| Species | NCBI Chromosome | NCBI Plasmid | NCBI WGS | NCBI GI |
|---|---|---|---|---|
| No prevalence data | ||||
Model Type: protein homolog model
Model Definition: Protein Homolog Models (PHM) detect protein sequences based on their similarity to a curated reference sequence, using curated BLASTP bitscore cut-offs. Protein Homolog Models apply to all genes that confer resistance through their presence in an organism, such as the presence of a beta-lactamase gene on a plasmid. PHMs include a reference sequence and a bitscore cut-off for detection using BLASTP. A Perfect RGI match is 100% identical to the reference protein sequence along its entire length, a Strict RGI match is not identical but the bit-score of the matched sequence is greater than the curated BLASTP bit-score cutoff, Loose RGI matches have a bit-score less than the curated BLASTP bit-score cut-off.
Bit-score Cut-off (blastP): 1080