title: Independent expression of the A gene of the tryptophan operon of Escherichia coli during tryptophan starvation.
mesh_terms: D001426:Bacterial Proteins / Q000032:analysis / Q000096:biosynthesis / Q000302:isolation & purification; D002474:Cell-Free System; D002852:Chromatography, Ion Exchange; D004926:Escherichia coli / Q000032:analysis / Q000254:growth & development / Q000302:isolation & purification / Q000378:metabolism*; D005796:Genes; D009154:Mutation; D009876:Operon; D012329:RNA, Bacterial; D011995:Recombination, Genetic; D013053:Spectrophotometry; D014161:Transduction, Genetic; D014364:Tryptophan / Q000032:analysis / Q000096:biosynthesis* / Q000378:metabolism; D014367:Tryptophan Synthase / Q000032:analysis / Q000096:biosynthesis / Q000378:metabolism; D014443:Tyrosine / Q000032:analysis
chemical_list: D001426:Bacterial Proteins; D012329:RNA, Bacterial; D014443:Tyrosine; D014364:Tryptophan; D014367:Tryptophan Synthase