Accession ARO:3002569
CARD Short NameAAC(6')-Iy
DefinitionAAC(6')-Iy is a chromosomal-encoded aminoglycoside acetyltransferase in S. enteritidis and S. enterica. Regulatory mutation required to increase expression of this chromosomally-encoded gene for resistance. In the specific system, aminoglycoside resistance was due to a transcriptional fusion secondary to a chromosomal deletion in which the downstream aac(6')-Iy gene was placed under the control of the upstream nmpC promoter.
AMR Gene FamilyAAC(6')
Drug Classaminoglycoside antibiotic
Resistance Mechanismantibiotic inactivation
Resistomes with Perfect MatchesSalmonella entericag+wgs
Resistomes with Sequence VariantsSalmonella entericag+wgs
Classification11 ontology terms | Show
Parent Term(s)8 ontology terms | Show
+ confers_resistance_to_antibiotic tobramycin [Antibiotic]
+ confers_resistance_to_antibiotic 2'-N-ethylnetilmicin [Antibiotic]
+ confers_resistance_to_antibiotic 5-episisomicin [Antibiotic]
+ confers_resistance_to_antibiotic sisomicin [Antibiotic]
+ confers_resistance_to_antibiotic dibekacin [Antibiotic]
+ confers_resistance_to_antibiotic netilmicin [Antibiotic]
+ confers_resistance_to_antibiotic amikacin [Antibiotic]
+ AAC(6')-I

Magnet S, et al. 1999. J Bacteriol 181(21): 6650-6655. Activation of the cryptic aac(6')-Iy aminoglycoside resistance gene of Salmonella by a chromosomal deletion generating a transcriptional fusion. (PMID 10542165)


Prevalence of AAC(6')-Iy 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).

Prevalence: protein homolog model (view sequences)

SpeciesNCBI ChromosomeNCBI PlasmidNCBI WGSNCBI GI
Salmonella enterica62.97%0%51.98%0%
Show Perfect Only

Detection Models

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): 275

>gb|AAF03531.1|+|AAC(6')-Iy [Salmonella enterica subsp. enterica serovar Enteritidis]

>gb|AF144880.1|+|3542-3979|AAC(6')-Iy [Salmonella enterica subsp. enterica serovar Enteritidis]