Identification of Mureidomycin Analogues and Functional Analysis of an N-Acetyltransferase in Napsamycin Biosynthesis

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Abstract

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Antibiotic abundance: Several new uridyl peptide antibiotics were identified from a heterologous producer strain containing the mureidomycin/napsamycin biosynthetic gene cluster by using HRMS and LC-ESI-MS/MS. Analysis of the new compounds and the corresponding gene cluster revealed NpsB, an N-acetyltransferase, to be responsible for acetylation of the uridyl peptide antibiotic.

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