title: Integration and excision of prophage lambda mediated by the IS 1 element.
mesh_terms: D010582:Bacteriophage lambda / Q000235:genetics*; D004251:DNA Transposable Elements; D004926:Escherichia coli / Q000235:genetics; D005809:Genes, Regulator; D005814:Genes, Viral; D008242:Lysogeny; D009154:Mutation; D011995:Recombination, Genetic; D014764:Viral Proteins / Q000235:genetics
chemical_list: D004251:DNA Transposable Elements; D014764:Viral Proteins