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Related Experiment Videos

Method for cloning single-stranded oligonucleotides in a plasmid vector.

P Mounts1, T C Wu, K Peden

  • 1Dept. of Immunology & Infectious Diseases, Johns Hopkins University, School of Hygiene and Public Health, Baltimore, MD 21205.

Biotechniques
|April 1, 1989
PubMed
Summary
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A novel method enables cloning single-stranded oligonucleotides into plasmid vectors using specific overhangs and T4 DNA ligase. This technique facilitates downstream applications like site-directed mutagenesis and protein binding studies.

Area of Science:

  • Molecular Biology
  • Recombinant DNA Technology

Background:

  • Efficient cloning of single-stranded oligonucleotides is crucial for various molecular biology applications.
  • Existing methods may have limitations in efficiency and versatility.

Purpose of the Study:

  • To develop a robust method for cloning single-stranded oligonucleotides into plasmid vectors.
  • To enable subsequent manipulations such as site-directed mutagenesis and protein binding assays.

Main Methods:

  • Ligation of single-stranded oligonucleotides into plasmid vectors with compatible 5' and 3' overhangs (e.g., Bgl II and Sac I sites).
  • Utilizing T4 DNA ligase for covalent joining of the oligonucleotide to the vector.
  • Employing the pKP59 plasmid vector, a 2.0 kB derivative of pBR322 with 16 cloning sites.

Related Experiment Videos

Main Results:

  • Successful cloning of single-stranded oligonucleotides into the specified plasmid vector.
  • Demonstration of the method's utility for generating double-stranded plasmids via in vitro synthesis.
  • Validation of the partially single-stranded molecule as a target for site-directed mutagenesis.

Conclusions:

  • The developed method provides an efficient way to clone single-stranded oligonucleotides.
  • The technique facilitates diverse downstream molecular biology applications, including mutagenesis and protein-DNA interaction studies.
  • The pKP59 vector is highly suitable for this cloning strategy due to its multiple cloning sites.