(2S,3S,2'R)-3-methyllanthionine -18.010564804077148438 -18.020000457763671875 186.046295166015625 186.2299957275390625 Cross-link 2. (2S,3S,2'R)-2-amino-3-[(2-amino-2-carboxyethyl)thio]butanoic acid A protein modification that effectively cross-links an L-cysteine residue and an L-threonine residue by a thioether bond to form (2S,3S,2'R)-3-methyllanthionine. PSI-MOD XLNK-SCys-3Dhb none MOD:00121 (2S,3S)-2-amino-3-([(2R)-2-amino-2-carboxyethyl]sulfanyl)butanoic acid (2S,3S,2'R)-3-methyllanthionine natural CROSSLNK Beta-methyllanthionine (Thr-Cys) C 7 H 10 N 2 O 2 S 1 (2S,3S,6R)-2,6-diamino-3-methyl-4-thiaheptanedioic acid (2S-[2R*,3R*(S*)])-2-amino-3-[(2-amino-2-carboxyethyl)thio]butanoic acid C, T 3-methyl-D,L-lanthionine cysteine-3-D-butyrine thioether CROSSLNK Beta-methyllanthionine (Cys-Thr) H -2 O -1 (2S,3S,6R)-3-methyllanthionine 3-methyllanthionine