Evidence for two sites for initiation of gene expression in the tryptophan operon of Salmonella typhimurium.
D002874:Chromosome Mapping; D004794:Enzyme Repression; D005796:Genes; D005964:Glucosyltransferases / Q000378:metabolism; D008025:Ligases / Q000378:metabolism; D008967:Molecular Biology; D009154:Mutation; D012486:Salmonella typhimurium / Q000201:enzymology / Q000378:metabolism*; D014364:Tryptophan / Q000096:biosynthesis*
D014364:Tryptophan; D005964:Glucosyltransferases; D008025:Ligases