The active centers of serine proteinases.
D000595:Amino Acid Sequence; D000818:Animals; D001224:Aspartic Acid; D001665:Binding Sites; D002417:Cattle; D002918:Chymotrypsin; D002919:Chymotrypsinogen; D010450:Endopeptidases; D006639:Histidine; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D011485:Protein Binding; D011487:Protein Conformation; D012694:Serine; D012995:Solubility; D014961:X-Ray Diffraction
D001224:Aspartic Acid; D012694:Serine; D006639:Histidine; D002919:Chymotrypsinogen; D010450:Endopeptidases; D002918:Chymotrypsin