Lyme disease enolpyruvyl-UDP-GlcNAc synthase: fosfomycin-resistant MurA from Borrelia burgdorferi, a fosfomycin-sensitive mutant, and the catalytic role of the active site Asp.

Abstract excerpt

MurAs (enolpyruvyl-UDP-GlcNAc synthases) from pathogenic bacteria such as Borrelia burgdorferi (Lyme disease) and tuberculosis are fosfomycin resistant because an Asp-for-Cys substitution prevents them from being alkylated by this epoxide antibiotic. Previous attempts to characterize naturally Asp-containing MurAs have resulted in no protein or no activity. We have expressed and characterized His-tagged Lyme...

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