2'-(S-L-cysteinyl)-L-histidine (2R)-2-amino-3-[(4-[(2S)-2-amino-2-carboxyethyl]-1H-imidazol-2-yl)sulfanyl]propanoic acid (2S)-2-amino-3-[2-([(2R)-2-amino-2-carboxyethyl]sulfanyl)-1H-imidazol-4-yl]propanoic acid -2.0156500339508056641 -2.0199999809265136719 2'-(L-cystein-S-yl)-L-histidine 238.0524444580078125 238.2599945068359375 A protein modification that effectively cross-links an L-cysteine residue and an L-histidine residue by a thioether bond to form 2'-(S-L-cysteinyl)-L-histidine. C 0 H -2 N 0 O 0 S 0 C 9 H 10 N 4 O 2 S 1 C, H CROSSLNK 2'-(S-cysteinyl)-histidine (Cys-His) Cross-link 2. MOD:00118 PSI-MOD S-(2'-histidyl)cysteine S-(2-histidyl)- (crosslinked to cysteine) XLNK-SCys-2'His natural uniprot.ptm:PTM-0005 thioether crosslinked residues crosslinked L-histidine residue