qacB

Accession ARO:3003047
DefinitionqacB is a subunit of the qac multidrug efflux pump
AMR Gene Familymajor facilitator superfamily (MFS) antibiotic efflux pump
Drug Classtetracycline antibiotic, antibacterial free fatty acids, rifamycin antibiotic, oxazolidinone antibiotic, nitroimidazole antibiotic, benzalkonium chloride, lincosamide antibiotic, fosfomycin, macrolide antibiotic, nucleoside antibiotic, fluoroquinolone antibiotic, penam, glycylcycline, cephalosporin, diaminopyrimidine antibiotic, isoniazid, phenicol antibiotic, acridine dye, peptide antibiotic, rhodamine, bicyclomycin
Resistance Mechanismantibiotic efflux
Efflux Componentefflux pump complex or subunit conferring antibiotic resistance
Classification30 ontology terms | Show
Parent Term(s)2 ontology terms | Show
+ confers_resistance_to_drug_class fluoroquinolone antibiotic [Drug Class]
+ major facilitator superfamily (MFS) antibiotic efflux pump [AMR Gene Family]
Publications

Alam MM, et al. 2003. Microb Drug Resist 9(2): 109-121. Analysis on distribution and genomic diversity of high-level antiseptic resistance genes qacA and qacB in human clinical isolates of Staphylococcus aureus. (PMID 12820795)

Resistomes

Prevalence of qacB 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: protein homolog model (view sequences)

SpeciesNCBI ChromosomeNCBI PlasmidNCBI WGS
Staphylococcus aureus0%0.08%0.45%
Staphylococcus epidermidis0%0%1.29%
Show Perfect Only


Detection Models

Model Type: protein homolog model

Model Definition: The protein homolog model is an AMR detection model. Protein homolog models detect a protein sequence based on its similarity to a curated reference sequence. A protein homolog model has only one parameter: a curated BLASTP bitscore cutoff for determining the strength of a match. Protein homolog model matches to reference sequences are categorized on three criteria: perfect, strict and loose. A perfect match is 100% identical to the reference sequence along its entire length; a strict match is not identical but the bitscore of the matched sequence is greater than the curated BLASTP bitscore cutoff. Loose matches are other sequences with a match bitscore less than the curated BLASTP bitscore.

Bit-score Cut-off (blastP): 990


>gb|AAQ10694.1|+|qacB [Staphylococcus aureus]
MISFFTKTTDMMTSKKRWAALVVLAVSLFVVTMDMTILIMALPELVRELEPSGTQQLWIVDIYSLVLAGFIIPLSAFADKWGRKKALLTG
FALFGLVSLAIFFAESAEFVIAIRFLLGIAGALIMPTTLSMIRVIFENPKERATALAVWSIVSSIGAVFGPIIGGALLEQFSWHSAFLIN
VPFAIIAVVAGLFLLPESKLSKEKSHSWDIPSTILSIAGMIGLVWSIKEFSKEGLADIIPWVVIVLAITMIVIFVKRNLSSSDPMLDVRL
FKKRSFSAGTIAAFMTMFAMTSVLLLASQWLQVVEELSPFKAGLYLLPMAIGAMVFAPIAPGLAARFGPKIVLPSGIGIAAIGMFIMYFF
GHPLSYSTMALALILVEAGTASLAVASALIMLETPTSKAGNAAAVEESMYDLGNVFGVAVLGSLSSMLYRVFLDISSFSSKGIVGDLAHV
AEESVVGAVEVAKATGIKQLANEAVTSFNDAFVATALVGGIIMIIISIVVYLLIPKSLDITKQK


>gb|AF535087|+|29-1573|qacB [Staphylococcus aureus]
ATGATTTCATTTTTTACAAAAACTACTGATATGATGACATCAAAAAAAAGATGGGCTGCACTAGTAGTATTAGCTGTTAGTTTGTTTGTT
GTTACAATGGATATGACAATATTAATTATGGCTTTACCGGAATTAGTAAGAGAGTTAGAGCCTTCTGGTACCCAACAGTTATGGATAGTT
GATATATACTCTCTTGTTTTAGCTGGCTTTATAATTCCATTGAGTGCCTTTGCTGATAAATGGGGAAGAAAAAAAGCATTATTAACTGGA
TTTGCTTTATTTGGCCTCGTTTCATTAGCTATATTTTTCGCAGAAAGTGCAGAGTTCGTAATAGCTATTCGATTTTTACTTGGTATTGCA
GGTGCTTTAATAATGCCAACTACCCTTTCAATGATAAGAGTAATTTTTGAAAACCCTAAAGAAAGGGCCACTGCATTAGCTGTATGGTCA
ATCGTTTCATCGATAGGTGCTGTTTTTGGACCAATTATCGGAGGAGCTTTACTTGAGCAATTTTCATGGCACTCGGCATTTTTAATTAAT
GTACCGTTTGCGATAATAGCAGTTGTAGCAGGTTTATTTTTATTACCAGAGTCTAAGTTATCAAAAGAAAAGTCTCACTCGTGGGATATT
CCTTCTACAATTTTATCAATTGCAGGCATGATTGGACTGGTATGGAGTATCAAAGAATTTTCAAAAGAAGGACTAGCAGATATTATTCCA
TGGGTTGTAATAGTATTAGCAATTACCATGATAGTGATATTTGTTAAACGTAATTTATCAAGTTCTGATCCAATGTTAGACGTAAGACTT
TTTAAAAAGAGATCATTTTCAGCTGGTACAATTGCTGCATTTATGACAATGTTTGCAATGACATCTGTTTTGTTATTAGCTTCACAATGG
TTACAGGTTGTGGAAGAACTTTCTCCTTTTAAAGCTGGCTTATACCTATTACCTATGGCAATAGGAGCTATGGTGTTTGCACCAATTGCA
CCCGGATTAGCGGCGCGATTTGGACCGAAAATAGTGTTACCTTCCGGAATTGGAATTGCAGCCATTGGCATGTTTATTATGTATTTCTTT
GGTCATCCATTATCATATTCTACAATGGCTTTAGCATTAATTTTAGTTGAAGCTGGTACGGCTTCACTAGCAGTTGCATCTGCTCTAATA
ATGTTAGAAACACCTACATCAAAAGCAGGTAATGCAGCTGCTGTTGAAGAGTCTATGTATGACCTTGGAAATGTTTTTGGTGTAGCAGTA
CTTGGTAGCCTATCTTCTATGCTTTATCGTGTATTTTTAGATATTTCATCTTTTTCATCAAAAGGTATAGTTGGAGATTTAGCTCATGTA
GCTGAAGAATCTGTAGTGGGCGCTGTCGAAGTAGCTAAAGCTACGGGGATAAAACAGCTTGCAAACGAGGCTGTAACATCATTTAATGAT
GCTTTTGTAGCAACTGCTTTAGTAGGTGGGATTATCATGATTATCATTTCAATAGTTGTCTATTTGTTAATTCCCAAATCACTTGATATA
ACTAAACAAAAATAG