Uptake of bacteriophage λ DNA in Escherichia Coli by electroporation: An alternative to In Vitro packaging

John Gaynor, Martin G. Fox

Research output: Contribution to journalArticle


By using a high field strength DC pulse of 15 kV/cm and a pulse duration of 5 ms for the transfection of E. coli by bacteriophage λ DNA, we obtained efficiencies of 1.1 × 106 (pfu/μg bacteriophage λ DNA). This represents a 100-fold improvement over the traditional CaCl2/heat shock method and is a viable alternative to the more costly in vitro packaging of recombinant bacteriophage λ DNA for the production of cDNA and genomic libraries.

Original languageEnglish
Pages (from-to)463-467
Number of pages5
JournalBiotechnology Techniques
Issue number6
Publication statusPublished - 1 Dec 1996


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