title: Genetic regulation of ribonucleoside and deoxyribonucleoside catabolism in Salmonella typhimurium.
abstract: Four enzymes involved in ribonucleoside and deoxyribonucleoside catabolism (deoxyribose-5-P aldolase, thymidine phosphorylase, phosphodeoxyribomutase, and purine nucleoside phosphorylase) are coded for by four closely linked structural genes on the Salmonella chromosome. The genetic order of these genes is (deoC-deoA-deoB-deoD)-serB-thr. Studies on polarity mutants and induction patterns indicate that the deoB and deoD genes may constitute a single operon and that the deoC and deoA genes may constitute a second closely linked operon.
mesh_terms: D000225:Adenine; D000446:Aldehyde-Lyases / Q000378:metabolism*; D003470:Culture Media; D004790:Enzyme Induction; D005796:Genes; D005815:Genetic Code; D005827:Genetics, Microbial; D006147:Guanine; D009154:Mutation; D009705:Nucleosides / Q000378:metabolism*; D010429:Pentoses; D010770:Phosphotransferases / Q000378:metabolism*; D012266:Ribose; D012486:Salmonella typhimurium / Q000201:enzymology / Q000254:growth & development / Q000302:isolation & purification / Q000378:metabolism*; D014161:Transduction, Genetic; D014166:Transferases / Q000378:metabolism*
chemical_list: D003470:Culture Media; D009705:Nucleosides; D010429:Pentoses; D006147:Guanine; D012266:Ribose; D014166:Transferases; D010770:Phosphotransferases; D000446:Aldehyde-Lyases; D000225:Adenine