title: Properties of the active center histidine of  -chymotrypsin.
mesh_terms: D000085:Acetates; D000596:Amino Acids / Q000032:analysis; D001665:Binding Sites; D002384:Catalysis; D002845:Chromatography; D002918:Chymotrypsin / Q000032:analysis; D004586:Electrophoresis; D005461:Fluorine; D006639:Histidine; D006863:Hydrogen-Ion Concentration; D007093:Imidazoles; D007700:Kinetics; D008433:Mathematics; D009578:Nitrobenzenes; D010084:Oxidation-Reduction; D010434:Pepsin A; D010455:Peptides / Q000032:analysis / Q000302:isolation & purification; D014316:Tritium
chemical_list: D000085:Acetates; D000596:Amino Acids; D007093:Imidazoles; D009578:Nitrobenzenes; D010455:Peptides; D014316:Tritium; D005461:Fluorine; D006639:Histidine; D002918:Chymotrypsin; D010434:Pepsin A