title: Studies on active site of goat pancreatic carboxypeptidase A: modification of histidine residues.
mesh_terms: D000818:Animals; D001665:Binding Sites; D002268:Carboxypeptidases / Q000378:metabolism*; D043422:Carboxypeptidases A; D006041:Goats; D006639:Histidine; D010179:Pancreas / Q000201:enzymology*; D010777:Photochemistry; D012395:Rose Bengal / Q000494:pharmacology*
chemical_list: D012395:Rose Bengal; D006639:Histidine; D002268:Carboxypeptidases; D043422:Carboxypeptidases A