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Biochim Biophys Acta. 1988 Mar 31;949(3):318-24.

DNA transfection of Escherichia coli by electroporation.

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  • 1Department of Biochemistry I, Fukui Medical School, Japan.

Abstract

Electroporation was applied to transfection and transformation of Escherichia coli. Efficient transfer of DNA was achieved by a single voltage pulse at 2.5 kV (initial electric field strength = 6.25 kV/cm), with a 25 microF capacitor. As the recipient for transfecting DNA in the electroporation, spheroplasts, EDTA-treated cells and osmotically shocked bacteria were inferior to intact E. coli. Various parameters affecting the transfection efficiency were defined including growth phase of recipient cells, concentrations of DNA and cells, temperature and additions. In most strains tested, electroporation was far more efficient than Ca2+-dependent transfection (transformation). Various aspects of the electroporation-mediated DNA uptake are discussed.

PMID:
3280031
[PubMed - indexed for MEDLINE]
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