title: A new and highly sensitive assay for the ATP phosphoribosyltransferase that catalyzes the first step of histidine biosynthesis.
mesh_terms: D002852:Chromatography, Ion Exchange; D004754:Enterobacter / Q000201:enzymology; D006639:Histidine / Q000096:biosynthesis*; D007700:Kinetics; D008722:Methods; D008832:Microchemistry; D010770:Phosphotransferases / Q000032:analysis*; D012268:Ribose-Phosphate Pyrophosphokinase / Q000032:analysis*; D013997:Time Factors
chemical_list: D006639:Histidine; D010770:Phosphotransferases; D012268:Ribose-Phosphate Pyrophosphokinase