A one-step miniprep for the isolation of plasmid DNA and lambda phage particles

George Lezin, Yasuhiro Kosaka, H. Joseph Yost, Michael R. Kuehn, Luca Brunelli

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Plasmid DNA minipreps are fundamental techniques in molecular biology. Current plasmid DNA minipreps use alkali and the anionic detergent SDS in a three-solution format. In addition, alkali minipreps usually require additional column-based purification steps and cannot isolate other extra-chromosomal elements, such as bacteriophages. Non-ionic detergents (NIDs) have been used occasionally as components of multiple-solution plasmid DNA minipreps, but a one-step approach has not been developed. Here, we have established a one-tube, one-solution NID plasmid DNA miniprep, and we show that this approach also isolates bacteriophage lambda particles. NID minipreps are more time-efficient than alkali minipreps, and NID plasmid DNA performs better than alkali DNA in many downstream applications. In fact, NID crude lysate DNA is sufficiently pure to be used in digestion and sequencing reactions. Microscopic analysis showed that the NID procedure fragments E.coli cells into small protoplast-like components, which may, at least in part, explain the effectiveness of this approach. This work demonstrates that one-step NID minipreps are a robust method to generate high quality plasmid DNA, and NID approaches can also isolate bacteriophage lambda particles, outperforming current standard alkali-based minipreps.

Original languageEnglish (US)
Article numbere23457
JournalPloS one
Volume6
Issue number8
DOIs
StatePublished - Aug 19 2011

Fingerprint

Bacteriophage lambda
Bacteriophages
detergents
Detergents
bacteriophages
plasmids
Plasmids
Alkalies
DNA
alkalis
Molecular biology
Protoplasts
Distillation columns
molecular biology
Escherichia coli
protoplasts
Purification
Molecular Biology
Digestion
digestion

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

A one-step miniprep for the isolation of plasmid DNA and lambda phage particles. / Lezin, George; Kosaka, Yasuhiro; Yost, H. Joseph; Kuehn, Michael R.; Brunelli, Luca.

In: PloS one, Vol. 6, No. 8, e23457, 19.08.2011.

Research output: Contribution to journalArticle

Lezin, George ; Kosaka, Yasuhiro ; Yost, H. Joseph ; Kuehn, Michael R. ; Brunelli, Luca. / A one-step miniprep for the isolation of plasmid DNA and lambda phage particles. In: PloS one. 2011 ; Vol. 6, No. 8.
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