title: Regulatory structure of the insertion region of bacteriophage lambda.
mesh_terms: D010582:Bacteriophage lambda / Q000235:genetics*; D001483:Base Sequence; D004926:Escherichia coli / Q000235:genetics; D005809:Genes, Regulator; D005814:Genes, Viral; D008242:Lysogeny; D009154:Mutation; D009876:Operon; D011995:Recombination, Genetic; D014158:Transcription, Genetic; D014364:Tryptophan / Q000235:genetics
chemical_list: D014364:Tryptophan