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Báo cáo khoa học: Role of K22 and R120 in the covalent binding of the antibiotic fosfomycin and the substrate-induced conformational change in UDP-N-acetylglucosamine enol pyruvyl transferase
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UDP-N-acetylglucosamineenolpyruvyl transferase (MurA), catalyzes the first step in the biosynthesis of peptidoglycan, involving the transfer of the intactenolpyruvyl moiety from phosphoenolpyruvate to the 3¢-hydroxyl group of UDP-N-acetylglucosamine (UDPNAG). The enzyme is irreversibly inhibited by the antibiotic fosfomycin. The inactivation is caused by alkylation of a highly conserved cysteine residue (C115) that participates in the binding of phos-phoenolpyruvate.
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