title: On the initiation of transcription of the tryptophan operon in Escherichia coli.
mesh_terms: D002874:Chromosome Mapping; D003090:Coliphages; D004279:DNA, Viral; D004926:Escherichia coli; D005815:Genetic Code; D012316:RNA Nucleotidyltransferases; D014161:Transduction, Genetic; D014364:Tryptophan
chemical_list: D004279:DNA, Viral; D014364:Tryptophan; D012316:RNA Nucleotidyltransferases