Browse AMR Genes
Explore antimicrobial resistance genes from the literature
Explore antimicrobial resistance genes from the literature
Overview
| Protein Change | Nucleotide Change | Mechanism | Organism | Resistance To | Database | Validation Status |
|---|---|---|---|---|---|---|
| G63S | failed to initiate porin transcription, two-component system response regulator OmpR, reduces expression of porin genes ompC and ompF | Escherichia coli, E. coli | BETA-LACTAMImipenem|Meropenem|Ertapenem|Doripenem | Reference Gene CatalogReslit | Confirmed | |
| M197R | - | - | Escherichia coli | Ceftriaxone | Reslit | Candidate |
| R150C |
| - |
| - |
| Escherichia coli |
Ceftriaxone |
Reslit |
| Candidate |
| S132L | - | - | Salmonella enterica | Ceftiofur | Reslit | Candidate |
| G63V | - | two-component system response regulator OmpR | Escherichia coli | BETA-LACTAM | Reference Gene Catalog | Established |
| E88A | - | - | E. coli | Amoxicillin | Reslit | Candidate |
Emerging Transcriptional and Genomic Mechanisms Mediating Carbapenem and Polymyxin Resistance in Enterobacteriaceae: a Systematic Review of Current Reports.
Mutations in ompR lead to reduced porin expression and increased carbapenem resistance.
Identification of Multiple Low-Level Resistance Determinants and Coselection of Motility Impairment upon Sub-MIC Ceftriaxone Exposure in Escherichia coli.
mutations in ompR contribute to low-level ceftriaxone resistance
Genomic and Proteomic Analyses of Salmonella enterica Serovar Enteritidis Identifying Mechanisms of Induced de novo Tolerance to Ceftiofur.
Conserved single amino acid substitution in the ceftiofur tolerant lineages
Structural Alteration of OmpR as a Source of Ertapenem Resistance in a CTX-M-15-Producing Escherichia coli O25b:H4 Sequence Type 131 Clinical Isolate.
ompR
OmpF Downregulation Mediated by Sigma E or OmpR Activation Confers Cefalexin Resistance in Escherichia coli in the Absence of Acquired β-Lactamases.
ompR
Effects of a previously selected antibiotic resistance on mutations acquired during development of a second resistance in Escherichia coli.
Mutation in ompR was observed in wild-type E.coli adapted to amoxicillin.
Fine-tuning carbapenem resistance by reducing porin permeability of bacteria activated in the selection process of conjugation.
The G63S mutation in OmpR leads to reduced expression of porin genes ompC and ompF, contributing to carbapenem resistance.
© 2026 ResLit. Data sourced from PubMed literature analysis.
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