title: Protection of foreign DNA against host-controlled restriction in bacterial cells. I. protection of F' plasmid DNA by preinfection with bacteriophages T3 or T7.
abstract: Foreign F'lac plasmid DNA which is introduced into potentially restricting E. coli recipient cells can be protected from restriction by preinfecting the recipient cells with UV-inactivated T3 or T7 bacteriophages which express the ocr gene function. The recipient cells survive and are able to replicate themselves as well as the newly acquired plasmid.
mesh_terms: D003090:Coliphages / Q000235:genetics*; D004262:DNA Restriction Enzymes / Q000037:antagonists & inhibitors*; D004269:DNA, Bacterial; D004926:Escherichia coli / Q000201:enzymology / Q000235:genetics; D005144:F Factor; D008242:Lysogeny
chemical_list: D004269:DNA, Bacterial; D004262:DNA Restriction Enzymes