title: Proflavine-sensitized selective photooxidation of the tryptophyl residues in papain.
mesh_terms: D000166:Acridines / Q000494:pharmacology*; D002384:Catalysis; D002845:Chromatography; D006863:Hydrogen-Ion Concentration; D010084:Oxidation-Reduction; D010206:Papain / Q000032:analysis*; D010777:Photochemistry; D013057:Spectrum Analysis; D014364:Tryptophan / Q000302:isolation & purification*
chemical_list: D000166:Acridines; D014364:Tryptophan; D010206:Papain