title: Restriction and modification of DNA by a complex protein.
mesh_terms: D004262:DNA Restriction Enzymes / Q000378:metabolism*; D004269:DNA, Bacterial / Q000378:metabolism*; D004926:Escherichia coli / Q000235:genetics; D008745:Methylation
chemical_list: D004269:DNA, Bacterial; D004262:DNA Restriction Enzymes