title: ColE1 plasmid mutants affecting growth of an Escherichia coli recB recC sbcB mutant.
abstract: Three mutant derivatives of the plasmid ColE1 were found to reduce the formation of plasmidless cells in a recB recC sbcB cell population. An active plasmid role in the plasmid-host interaction is suggested.
mesh_terms: D004926:Escherichia coli / Q000235:genetics* / Q000254:growth & development; D009154:Mutation; D010957:Plasmids