. "\"The cross-linking of a cysteine residue to an L-phenylalanine residue to form 2-(S-L-cysteinyl)-D-phenylalanine.\" [PMID:12696888, RESID:AA0341]" . . "peptide cross-linking via 2-(S-L-cysteinyl)-D-phenylalanine" . "RESID:AA0341" . . . .