title: Molecular orbital studies on serine, cysteine, and modified proteases.
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003545:Cysteine / Q000032:analysis*; D008968:Molecular Conformation; D010447:Peptide Hydrolases / Q000032:analysis*; D011487:Protein Conformation; D012694:Serine / Q000032:analysis*
chemical_list: D012694:Serine; D010447:Peptide Hydrolases; D003545:Cysteine