title: Description of an incompatibility mutant of Escherichia coli.
abstract: A mutant Hfr strain of Escherichia coli which has an impaired incompatibility function but is normal for other F factor functions has been isolated. This Inc(-) Hfr permits the maintenance and transfer of both the integrated F factor and an F' factor. F' factors have been isolated from the integrated F factor of the Inc(-) Hfr strain. When these episomes were tested in matings with Hfr or F' strains, they did not differ in any observed way from wild-type F' factors.
mesh_terms: D002874:Chromosome Mapping; D004261:DNA Replication; D004269:DNA, Bacterial; D004926:Escherichia coli / Q000254:growth & development / Q000302:isolation & purification; D009154:Mutation; D010641:Phenotype; D011995:Recombination, Genetic; D014161:Transduction, Genetic
chemical_list: D004269:DNA, Bacterial