title: HISTIDINE SEQUENCES IN THE ACTIVE CENTRES OF SOME "SERINE" ENZYMES.
mesh_terms: D001483:Base Sequence; D055598:Chemical Phenomena; D002621:Chemistry; D006639:Histidine; D012694:Serine
chemical_list: D012694:Serine; D006639:Histidine
keywords: CHEMISTRY; HISTIDINE; SERINE