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Nanchangmycin Biosynthesis. NanA1-NanA11 correspond to the 14-module nanchangmycin synthase. NanO is an epoxidase, NanI is an epoxide hydrolase, NanP is a P450-dependent hydroxylase, NanG5 is a glycosylase, and NanE is the thioesterase that releases the mature polyether from the ACP. Epimerized α-methyl ketones are highlighted in red.
