Fig. 3From: Lanthipeptides: chemical synthesis versus in vivo biosynthesis as tools for pharmaceutical productionMajor PTM features found in mature lanthipeptide. Didehydrobutyrine (Dhb) is derived from threonine and didehydroalanine (Dha) from serine. Thioether cross-linking between Dhb and cysteine results in methyllanthionine while that between Dha and cysteine gives lanthionine. The abbreviations Xn and Xn’ represent peptide sequencesBack to article page