title: Terbium luminescence as a probe of the calcium binding site of trypsin and alpha-chymotrypsin.
mesh_terms: D000818:Animals; D001665:Binding Sites; D002118:Calcium; D002417:Cattle; D002918:Chymotrypsin / Q000378:metabolism*; D007700:Kinetics; D008163:Luminescent Measurements; D010179:Pancreas / Q000201:enzymology; D011485:Protein Binding; D013552:Swine; D013725:Terbium; D014357:Trypsin / Q000378:metabolism*
chemical_list: D013725:Terbium; D002918:Chymotrypsin; D014357:Trypsin; D002118:Calcium