AMR Gene Databases
One-Sentence Definition
AMR gene databases are curated catalogs of resistance genes/mutations and detection rules used to interpret microbial sequence data for antimicrobial resistance determinants.
Simple Explanation
Lookup tables for “this DNA bit means resistance to drug class X” — different catalogs don’t always agree.
Detailed Scientific Explanation
| Database / tool | Focus | Notes |
|---|---|---|
| CARD + RGI | Ontology-rich AMR genes | Broad research use |
| ResFinder / PointFinder | Genes + chromosomal point mutations | Clinical-genomics popular |
| AMRFinderPlus (NCBI) | Genes + points; Pathogen Detection link | Integrated US ecosystem |
| NCBI Pathogen Detection | Clusters + resistance genotypes | Surveillance |
| Others | ARG-ANNOT, MEGARes, SARG… | Metagenome-oriented sets |
Discordance arises from: inclusion criteria, allele naming, mutation rules, update lag, species assumptions. Review context: Paper - AMR Database M.Centner 2026.
Mechanism
Query sequence (BLAST/HMM/kmer) against reference determinants → hit → predicted drug class. Phenotype still via Antimicrobial Susceptibility Testing.
Clinical Importance
- Report language must state DB + version
- Silent genes / incomplete expression → genotype–phenotype mismatch
Research Importance
- Training labels for Machine Learning for AMR Prediction
- One Health meta-analyses depend on harmonized calls
Diagnostic Relevance
- Embedded in WGS Bioinformatics Pipeline after assembly/annotation
AMR Relevance
Infrastructure of genomic AMR. Quality of DB = quality of surveillance.
Related Papers
Related Methods
- Whole-Genome Sequencing · Sequence Alignment and BLAST · PCR (targeted genes)
Related MOCs
- MOC - Bioinformatics in Microbiology · MOC - Antimicrobial Resistance (AMR) · MOC - AI in Microbiology
Active Recall Questions
- Name three major AMR sequence databases/tools.
- Why can two DBs disagree on the same genome?
- What wet-lab result arbitrates therapy?
Connections
- Genetics: Plasmid · Horizontal Gene Transfer · Mutation and Selection