ruleID organism gene nodeID refseq accession GenBank accession HMM accession ARO accession mutation variation type context drug drug class phenotype clinical category breakpoint breakpoint standard PMID evidence code evidence grade evidence limitations rule curation note ECC001 s__Enterobacter hormaechei blaACT blaACT - - - - - Gene presence detected core amoxicillin - wildtype R MIC >=8 mg/L "EUCAST v15.0 (2025). Expected resistant phenotypes v 1.2 (13 January, 2023)." 35934231 "ECO:0001103 natural variation mutant evidence, ECO:0001091 knockout phenotypic evidence" strong ECC002 s__Enterobacter hormaechei blaACT blaACT - - - - - Gene presence detected core amoxicillin-clavulanic acid - wildtype R MIC >=8 mg/L "EUCAST v15.0 (2025). Expected resistant phenotypes v 1.2 (13 January, 2023)." 35934231 "ECO:0001103 natural variation mutant evidence, ECO:0001091 knockout phenotypic evidence" moderate lacks evidence of the degree to which MIC is affected ECC003 s__Enterobacter hormaechei blaACT blaACT - - - - - Gene presence detected core ampicillin - wildtype R MIC >=8 mg/L "EUCAST v15.0 (2025). Expected resistant phenotypes v 1.2 (13 January, 2023)." 35934231 "ECO:0001103 natural variation mutant evidence, ECO:0001091 knockout phenotypic evidence" strong ECC004 s__Enterobacter hormaechei blaACT blaACT - - - - - Gene presence detected core - first-generation cephalosporin wildtype R not applicable "EUCAST v15.0 (2025). Expected resistant phenotypes v 1.2 (13 January, 2023)." 35934231 "ECO:0001103 natural variation mutant evidence, ECO:0000012 functional complementation evidence" strong ECC005 s__Enterobacter hormaechei blaACT blaACT - - - - - Gene presence detected core - second-generation cephalosporin wildtype R not applicable "Expected resistant phenotypes v 1.2 (13 January, 2023)." 35934231 "ECO:0001103 natural variation mutant evidence, ECO:0001091 knockout phenotypic evidence" strong ECC006 s__Enterobacter hormaechei blaACT blaACT - - - - - Gene presence detected core cefuroxime - wildtype R not applicable "Expected resistant phenotypes v 1.2 (13 January, 2023)." 35934231 ECO:0001103 natural variation mutant evidence strong ECC007 s__Enterobacter hormaechei blaACT blaACT - - - - - Gene presence detected core cefoxitin - wildtype R not applicable "Expected resistant phenotypes v 1.2 (13 January, 2023)." 35934231 ECO:0001103 natural variation mutant evidence strong ECC008 s__Enterobacter hormaechei oqxA oqxA - - - - - Gene presence detected core - fluoroquinolone antibiotic wildtype S not applicable EUCAST v15.0 (2025) 25801572 ECO:0001103 natural variation mutant evidence strong ECC009 s__Enterobacter hormaechei oqxB oqxB - - - - - Gene presence detected core - fluoroquinolone antibiotic wildtype S not applicable EUCAST v15.0 (2025) 25801572 ECO:0001103 natural variation mutant evidence strong ECC010 s__Enterobacter hormaechei fosA fosA - - - - - Gene presence detected core fosfomycin - wildtype not available EUCAST v15.0 (2025) 28851843 ECO:0001103 natural variation mutant evidence weak low clinical relevance "There are no clinical breakpoints established for fosfomycin in Enterobacterales other than E. coli, as there is a lack of clinical evidence. The ECOFF has not yet been defined due the lack of enough MIC data determined with the reference method The breakpoint for E. coli (UTI only) is 8 mg/L. Enterobacter hormaechei carrying this gene have MICs in the range 8-128 mg/L." ECC011 s__Enterobacter roggenkampii blaMIR blaMIR - - - - - Gene presence detected core amoxicillin - wildtype R MIC >=8 mg/L "EUCAST v15.0 (2025). Expected resistant phenotypes v 1.2 (13 January, 2023)." 35934231 "ECO:0001103 natural variation mutant evidence, ECO:0001091 knockout phenotypic evidence" strong ECC012 s__Enterobacter roggenkampii blaMIR blaMIR - - - - - Gene presence detected core amoxicillin-clavulanic acid - wildtype R MIC >=8 mg/L "EUCAST v15.0 (2025). Expected resistant phenotypes v 1.2 (13 January, 2023)." 35934231 ECO:0001103 natural variation mutant evidence moderate lacks evidence of the degree to which MIC is affected ECC013 s__Enterobacter roggenkampii blaMIR blaMIR - - - - - Gene presence detected core ampicillin - wildtype R MIC >=8 mg/L "EUCAST v15.0 (2025). Expected resistant phenotypes v 1.2 (13 January, 2023)." 35934231 "ECO:0001103 natural variation mutant evidence, ECO:0001091 knockout phenotypic evidence" strong ECC014 s__Enterobacter roggenkampii blaMIR blaMIR - - - - - Gene presence detected core - first-generation cephalosporin wildtype R not applicable "EUCAST v15.0 (2025). Expected resistant phenotypes v 1.2 (13 January, 2023)." 35934231 ECO:0001103 natural variation mutant evidence strong ECC015 s__Enterobacter roggenkampii blaMIR blaMIR - - - - - Gene presence detected core cefuroxime - wildtype R not applicable "Expected resistant phenotypes v 1.2 (13 January, 2023)." 35934231 "ECO:0001103 natural variation mutant evidence, ECO:0000012 functional complementation evidence" strong ECC016 s__Enterobacter roggenkampii blaMIR blaMIR - - - - - Gene presence detected core cefoxitin - wildtype R not applicable "Expected resistant phenotypes v 1.2 (13 January, 2023)." 35934231 ECO:0001103 natural variation mutant evidence strong ECC017 s__Enterobacter roggenkampii blaMIR blaMIR - - - - - Gene presence detected core - second-generation cephalosporin wildtype R not applicable "Expected resistant phenotypes v 1.2 (13 January, 2023)." 35934231 ECO:0001103 natural variation mutant evidence strong ECC018 s__Enterobacter roggenkampii oqxA oqxA - - - - - Gene presence detected core - fluoroquinolone antibiotic wildtype S not applicable EUCAST v15.0 (2025) 25801572 ECO:0001103 natural variation mutant evidence strong ECC019 s__Enterobacter roggenkampii oqxB oqxB - - - - - Gene presence detected core - fluoroquinolone antibiotic wildtype S not applicable EUCAST v15.0 (2025) 25801572 "ECO:0001103 natural variation mutant evidence, ECO:0000012 functional complementation evidence" strong ECC020 s__Enterobacter roggenkampii fosA fosA - - - - - Gene presence detected core fosfomycin - wildtype not available EUCAST v15.0 (2025) 28851843 "ECO:0001103 natural variation mutant evidence, ECO:0000024 protein-binding evidence" weak low clinical relevance "There are no clinical breakpoints established for fosfomycin in Enterobacterales other than E. coli, as there is a lack of clinical evidence. The ECOFF has not yet been defined due the lack of enough MIC data determined with the reference method The breakpoint for E. coli (UTI only) is 8 mg/L. Enterobacter hormaechei carrying this gene have MICs in the range 8-128 mg/L."