title: Unimportance of histidine and serine residues of trypsin in the substrate binding function proved by affinity chromatography.
mesh_terms: D002846:Chromatography, Affinity; D006639:Histidine / Q000032:analysis*; D012694:Serine / Q000032:analysis*; D014357:Trypsin / Q000032:analysis / Q000378:metabolism*
chemical_list: D012694:Serine; D006639:Histidine; D014357:Trypsin