title: Enzyme--substrate interaction by nuclear magnetic resonance.
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D002918:Chymotrypsin; D005461:Fluorine; D009682:Magnetic Resonance Spectroscopy; D010649:Phenylalanine
chemical_list: D005461:Fluorine; D010649:Phenylalanine; D002918:Chymotrypsin