3-(S-L-cysteinyl)-L-aspartic acid (2R,3S)-2-amino-3-([(2R)-2-amino-2-carboxyethyl]sulfanyl)butanedioic acid (2R,3S,6R)-2,6-diamino-3-carboxy-4-thiaheptanedioic acid -2.0156500339508056641 -2.0199999809265136719 216.020477294921875 216.2100067138671875 3-(L-cystein-S-yl)-L-aspartic acid 3-carboxy-L-lanthionine A protein modification that effectively cross-links an L-cysteine residue and an L-aspartic acid residue by a thioether bond to form 2-(S-L-cysteinyl)-L-aspartic acid. C 0 H -2 N 0 O 0 S 0 C 7 H 8 N 2 O 4 S 1 C, D CROSSLNK 3-cysteinyl-aspartic acid (Cys-Asp) Cross-link 2. MOD:00319 PSI-MOD natural uniprot.ptm:PTM-0025 beta-carbon thioether crosslinked residues crosslinked L-aspartic acid residue