4ZA1:
reference: Structure-based Mechanistic Insights into Terminal Amide Synthase in Nosiheptide-Represented Thiopeptides Biosynthesis., Liu S, Guo H, Zhang T, Han L, Yao P, Zhang Y, Rong N, Yu Y, Lan W, Wang C, Ding J, Wang R, Liu W, Cao C, Sci Rep. 2015 Aug 5;5:12744. doi: 10.1038/srep12744. PMID: 26244829

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