title: Chymopapain II. Photooxidation of histidine residues.
mesh_terms: D001974:Bromosuccinimide; D002917:Chymopapain / Q000528:radiation effects*; D010450:Endopeptidases / Q000528:radiation effects*; D006639:Histidine / Q000032:analysis / Q000528:radiation effects*; D008027:Light; D010084:Oxidation-Reduction; D010777:Photochemistry; D014364:Tryptophan / Q000528:radiation effects
chemical_list: D006639:Histidine; D014364:Tryptophan; D010450:Endopeptidases; D002917:Chymopapain; D001974:Bromosuccinimide