title: Genetic characterization of the araE gene in Salmonella typhimurium lt2.
abstract: Six L-arabinose transport-deficient mutants of Salmonella typhimurium LT2 were isolated on the basis of their inability to ferment low concentrations of L-arabinose. The mutations were localized between serA and lys on the S. typhimurium genetic map and assigned to the araE locus. An araE-lac fusion strain was constructed and used to determine that the direction of araE transcription was counterclockwise on the S. typhimurium genetic map. beta-Galactosidase activity was induced by L-arabinose in the araE-lac fusion strain, suggesting that araE expression is controlled at the level of transcription.
mesh_terms: D001089:Arabinose / Q000235:genetics* / Q000378:metabolism; D001692:Biological Transport; D005796:Genes; D009154:Mutation; D010957:Plasmids; D012486:Salmonella typhimurium / Q000235:genetics* / Q000378:metabolism; D014158:Transcription, Genetic
chemical_list: D001089:Arabinose