S-[5'-(L-tryptoph-6'-yl)-L-tyrosin-3'-yl]-L-methionin-S-ium -3.0199999809265136719 -3.0240240097045898438 1+ 477.159088134765625 477.55999755859375 5'-(6'-tryptophyl)-tyrosin-3'-yl-methionin-S-ium A protein modification that effectively cross-links an L-tryptophan residue with an L-tyrosine residue by a carbon-carbon bond, and cross-links the L-tyrosine residue to an L-methionine residue by a thioether bond to form S-[5'-(L-tryptoph-6'-yl)-L-tyrosin-3'-yl]-L-methionin-S-ium. C 0 H -3 N 0 O 0 S 0 C 25 H 25 N 4 O 4 S 1 Cross-link 3. M, W, Y MOD:00353 PSI-MOD S-[5'-(L-tryptoph-6'-yl)-L-tyrosin-3'-yl]-L-methionin-S-ium natural uniprot.ptm:PTM-0328 uncategorized crosslinked residues crosslinked L-methionine residue crosslinked L-tryptophan residue crosslinked L-tyrosine residue