alexa Deletion of an essential gene in Escherichia coli by site-specific recombination with linear DNA fragments.
Genetics

Genetics

Advancements in Genetic Engineering

Author(s): Jasin M, Schimmel P

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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.
This article was published in J Bacteriol and referenced in Advancements in Genetic Engineering

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