title: Host specificity of DNA produced by Escherichia coli. XII. The two restriction and modification systems of strain 15T-.
mesh_terms: D002876:Chromosomes, Bacterial; D003090:Coliphages; D004247:DNA / Q000096:biosynthesis*; D004926:Escherichia coli; D005796:Genes; D005815:Genetic Code; D005827:Genetics, Microbial; D012737:Sex Factors
chemical_list: D004247:DNA