title: Deletion of an essential gene in Escherichia coli by site-specific recombination with linear DNA fragments.
abstract: Deletion of an essential gene in Escherichia coli was accomplished by transformation of linear DNA fragments that have a Kanr gene segment flanked by sequences homologous to closely spaced regions on the E. coli chromosome. Selection for a double crossover within homologous sequences can effectively delete an entire gene. Cell viability is maintained by provision of the essential gene on a plasmid with a temperature-sensitive replicon, resulting in cells which have a temperature-sensitive phenotype.
mesh_terms: D001483:Base Sequence; D002872:Chromosome Deletion; D004262:DNA Restriction Enzymes; D004269:DNA, Bacterial / Q000235:genetics; D004274:DNA, Recombinant / Q000378:metabolism*; D004926:Escherichia coli / Q000235:genetics*; D005798:Genes, Bacterial; D010957:Plasmids
chemical_list: D004269:DNA, Bacterial; D004274:DNA, Recombinant; D004262:DNA Restriction Enzymes