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A rapid and simple method for DNA engineering using cycled ligation assembly.

Theodore L Roth1, Ljiljana Milenkovic1, Matthew P Scott1

  • 1Departments of Developmental Biology, Genetics, Bioengineering, & Biology, Stanford University School of Medicine, Stanford, California, United States of America.

Plos One
|September 17, 2014
PubMed
Summary
This summary is machine-generated.

A new cycled ligation DNA assembly method offers a simple, cost-effective, and efficient way to build complex genetic constructs. This technique uses Scaffold Oligonucleotide Connectors (SOCs) for precise, scarless assembly of multiple DNA fragments in a single reaction.

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Area of Science:

  • Molecular Biology
  • Synthetic Biology
  • Biotechnology

Background:

  • Traditional DNA assembly methods face limitations in efficiency and cost for complex constructs.
  • Recent in vitro DNA assembly techniques can be expensive and complex, with decreasing efficiency for numerous DNA segments.

Purpose of the Study:

  • To develop a simple, cost-effective, and efficient DNA assembly protocol for complex genetic constructs.
  • To present a cycled ligation-based method utilizing Scaffold Oligonucleotide Connectors (SOCs).

Main Methods:

  • Employed a thermostable ligase and short Scaffold Oligonucleotide Connectors (SOCs) for DNA fragment assembly.
  • Utilized a cycled reaction protocol with denaturing and annealing/ligating temperatures.
  • Demonstrated assembly of twelve DNA inserts into a transformable plasmid in a single reaction.

Main Results:

  • Achieved precise and scarless assembly of multiple DNA fragments.
  • The SOCs directed an exponential increase in correctly assembled product amount.
  • Successfully assembled twelve inserts into a plasmid with high fidelity.

Conclusions:

  • The developed cycled ligation DNA assembly protocol is simple, cheap, and efficient.
  • This method facilitates the construction of complex genetic constructs for biomedical research.
  • The technique enables scarless assembly of numerous DNA sequences in a single reaction.