Fosfomycin-resistance Plasmids Determine an Intracellular Modification of Fosfomycin
Javier León, Juan M. Garcı́a-Lobo, Jesús Navas, José Ortíz
Abstract
Javier León, Juan M. Garcı́a-Lobo, Jesús Navas, José Ortíz
Abstract
Escherichia coli cells carrying fosfomycin-resistance plasmids modify fosfomycin intracellularly. The product of this modification (fosfomycin-derivative) differs from fosfomycin in chromatographic mobility, but the chemical nature of the modification is not yet known. Fosfomycin-derivative appears to have a cytoplasmic location and lacks antibiotic activity. The modification system can be saturated by an excess of fosfomycin in the incubation media.
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Escherichia coli cells carrying fosfomycin-resistance plasmids modify fosfomycin intracellularly. The product of this modification (fosfomycin-derivative) differs from fosfomycin in chromatographic mobility, but the chemical nature of the modification is not yet known. Fosfomycin-derivative appears to have a cytoplasmic location and lacks antibiotic activity. The modification system can be saturated by an excess of fosfomycin in the incubation media.
Key concepts: Fosfomycin, Escherichia coli, Plasmid, Microbiology, Chemistry, Cytoplasm, Intracellular, Antibiotics