Biosynthesis of peptidoglycan in Staphylococcus aureus: incorporation of the Nepsilon-Ala-Lys moiety into the peptide subunit of nascent peptidoglycan.

Abstract

UDP-MurNAc-Ala-DGlu-Lys(Nepsilon-Ala)-DAla-DAla was isolated from extracts of Staphylococcus aureus Copenhagen. This nucleotide accumulated in media deficient in glycine. To establish its role in peptidoglycan biosynthesis, the nucleotide-hexapeptide was compared with UDP-MurNAc-Ala-DGlu-Lys-DAla-DAla in the reaction catalyzed by phospho-MurNAc-pentapeptide… (More)

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