Browse AMR Genes
Explore antimicrobial resistance genes from the literature
Explore antimicrobial resistance genes from the literature
beta-lactamase
Overview
Acquisition and dissemination of cephalosporin-resistant E. coli in migratory birds sampled at an Alaska landfill as inferred through genomic analysis.
The study identified various beta-lactam resistance genes, including bla CTX-M-55, bla CTX-M-14, and bla CMY-2, in cephalosporin-resistant E. coli isolates from gulls and bald eagles in Alaska. These genes were found to confer resistance to beta-lactam antibiotics.
Resurrecting Old β-Lactams: Potent Inhibitory Activity of Temocillin against Multidrug-Resistant Burkholderia Species Isolates from the United States.
Temocillin showed potent activity against multidrug-resistant Burkholderia species isolates, particularly against B. multivorans. The study demonstrated that temocillin is not hydrolyzed by endogenous beta-lactamases, making it effective against these resistant strains.
Differential response to prolonged amoxicillin treatment: long-term resilience of the microbiome versus long-lasting perturbations in the gut resistome.
The study found that prolonged amoxicillin treatment leads to an increase in the abundance and diversity of antimicrobial resistance genes (ARGs) in the gut microbiome, particularly beta-lactamase genes such as cfxA and its variants, as well as tetracycline and macrolide resistance genes.
Genomic features, antimicrobial resistance and pathogenicity assessment of Escherichia coli serotype O177:H51 strain JS01 isolated from a diseased chicken.
The study identified 64 AMR genes and 177 virulence factor genes in the E. coli strain JS01, highlighting its multidrug resistance and high pathogenicity.
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