title: A molecular orbital study on the effects of substituents on the proton transfer from ser-195 to his-57 in the hydrolysis of alpha-chymotrypsin.
mesh_terms: D002918:Chymotrypsin; D006639:Histidine; D006860:Hydrogen Bonding; D011487:Protein Conformation; D011522:Protons; D012694:Serine; D013816:Thermodynamics
chemical_list: D011522:Protons; D012694:Serine; D006639:Histidine; D002918:Chymotrypsin