title: Regulation of tryptophan biosynthesis.
mesh_terms: D001483:Base Sequence; D004926:Escherichia coli / Q000378:metabolism; D009154:Mutation; D009690:Nucleic Acid Conformation; D009876:Operon; D014176:Protein Biosynthesis; D012333:RNA, Messenger / Q000378:metabolism; D012234:Rho Factor; D012486:Salmonella typhimurium / Q000378:metabolism; D012762:Shigella dysenteriae / Q000378:metabolism; D013045:Species Specificity; D014158:Transcription, Genetic; D014364:Tryptophan / Q000096:biosynthesis*
chemical_list: D012333:RNA, Messenger; D012234:Rho Factor; D014364:Tryptophan