AMR Gene Family
Catalyzes the addition of a thiol group from a nucleophilic molecule to fosfomycin.
Drug Class
Fosfomycin (also known as phosphomycin and phosphonomycin) is a broad-spectrum antibiotic produced by certain Streptomyces species. It is effective on gram positive and negative bacteria as it targets the cell wall, an essential feature shared by both bacteria. Its specific target is MurA (MurZ in E.coli), which attaches phosphoenolpyruvate (PEP) to UDP-N-acetylglucosamine, a step of commitment to cell wall synthesis. In the active site of MurA, the active cysteine molecule is alkylated which stops the catalytic reaction.
Resistance Mechanism
Enzymatic inactivation of antibiotic to confer drug resistance.