Use of gene replacement to construct Escherichia coli strains carrying mutations in two genes required for stability of multicopy plasmids
- PMID: 2649493
- PMCID: PMC209887
- DOI: 10.1128/jb.171.4.2241-2243.1989
Use of gene replacement to construct Escherichia coli strains carrying mutations in two genes required for stability of multicopy plasmids
Abstract
Escherichia coli mutants completely defective in ColE1 cer-mediated site-specific recombination have been mapped to two genes, xerA and xerB. In this study, xerA xerB double mutants were constructed by gene replacement with a lambda dv plasmid and were shown to be both viable and defective in ColE1 site-specific recombination.
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