title: Specific repression of phosphoribosylpyrophosphate synthetase by uridine compounds in Salmonella typhimurium.
abstract: Mutants of Salmonella typhimurium with specific pyrimidine requirements were used to demonstrate that only uridine compounds exert repressive control over synthesis of phosphoribosylpyrophosphate synthetase.
mesh_terms: D000255:Adenosine Triphosphate; D001224:Aspartic Acid; D002219:Carbamates; D003562:Cytidine / Q000494:pharmacology; D004794:Enzyme Repression; D005827:Genetics, Microbial; D009154:Mutation; D010428:Pentosephosphates; D010756:Phosphoric Acids; D010770:Phosphotransferases / Q000096:biosynthesis*; D012486:Salmonella typhimurium / Q000187:drug effects / Q000201:enzymology*; D014166:Transferases / Q000096:biosynthesis; D014529:Uridine / Q000494:pharmacology*
chemical_list: D002219:Carbamates; D010428:Pentosephosphates; D010756:Phosphoric Acids; D001224:Aspartic Acid; D003562:Cytidine; D000255:Adenosine Triphosphate; D014166:Transferases; D010770:Phosphotransferases; D014529:Uridine