Effect of Centrifugation on Competent Cells of Escherichia coli
Keywords:
Escherichia coli, competent cells, Electrotransformation
Abstract
In this study, we changed centrifugation parameters (3 300 g, 2 min, 4°C) for cell harvesting and suspended cells with Pasteur pipettes during the preparation of E. coli competent cells for electrotransformation. As the result, the titer of either BL21 (DE3) or Top10 reached 109 easily, meanwhile at least 1 hr was saved for the whole process.
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References
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2. Zhao L, Wang H, Jia Y, Yang X. Some tips for preparation of E. coli competent cells. IJRDO-Journal of Biological Science. 2018, 4(8): 18-20.
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2. Zhao L, Wang H, Jia Y, Yang X. Some tips for preparation of E. coli competent cells. IJRDO-Journal of Biological Science. 2018, 4(8): 18-20.
3. Sambrook J, Fritsch E, Maniatis T. 1989. Molecular Cloning: A Laboratory Manual, 2nd Edition, Cold Spring Harbor Press, NY. pp1.82-1.84.
4. Lee SY, Chang HN. Generation of bacteriophage lambda lysogens by electroporation. Biotechniques. 1994, 16(2): 206-208.
5. Siguret V, Ribba AS, Chérel G, Meyer D, Piétu G. Effect of plasmid size on transformation efficiency by electroporation of Escherichia coli DH5 alpha. Biotechniques. 1994, 16(3):422-426.
Published
2018-09-30
How to Cite
Zhao, L., Zhao, H., Liu, H., & Yang, X. (2018). Effect of Centrifugation on Competent Cells of Escherichia coli. IJRDO - JOURNAL OF BIOLOGICAL SCIENCE, 4(9), 18-20. https://doi.org/10.53555/bs.v4i9.2426
Section
Articles
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