title: Insertion mutations in the dam gene of Escherichia coli K-12.
abstract: The dam gene of E. coli can be inactivated by insertion of Tn9 or Mud phage. Strains bearing these mutations are viable indicating that the dam gene product is dispensable.
mesh_terms: D004251:DNA Transposable Elements; D004926:Escherichia coli / Q000235:genetics*; D005798:Genes, Bacterial; D008780:Methyltransferases / Q000235:genetics*; D009154:Mutation; D015265:Site-Specific DNA-Methyltransferase (Adenine-Specific)
chemical_list: D004251:DNA Transposable Elements; D008780:Methyltransferases; D015265:Site-Specific DNA-Methyltransferase (Adenine-Specific)