| Accession | ARO:3007110 |
| CARD Short Name | nimH |
| Definition | nimH is a nitroimidazole reductase mainly found in Bacteroides fragilis that is associated with the deactivation of nitroimidazole antibiotics such as metronidazole. Minimum inhibitory concentrations observed in isolates vary greatly depending on species, strain, and nitroimidazole treatment. |
| AMR Gene Family | nitroimidazole reductase |
| Drug Class | nitroimidazole antibiotic |
| Resistance Mechanism | antibiotic inactivation |
| Classification | 7 ontology terms | Show |
| Parent Term(s) | 2 ontology terms | Show + confers_resistance_to_antibiotic metronidazole [Antibiotic] + nitroimidazole reductase [AMR Gene Family] |
| Publications | Alauzet C, et al. 2017. J Antimicrob Chemother 72(9):2673-2675 nimH, a novel nitroimidazole resistance gene contributing to metronidazole resistance in Bacteroides fragilis. (PMID 28535278) |
Prevalence of nimH 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): 150