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Related Experiment Video

Updated: Jul 7, 2026

Subcloning Plus Insertion (SPI) - A Novel Recombineering Method for the Rapid Construction of Gene Targeting Vectors
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Rapid method for plasmid DNA recombination (Murakami-system).

Agnieszka M Murakami1, Manabu Yonekura1, Katsuhiro Nagatomo1

  • 1Department of Pharmacology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.

Methodsx
|April 20, 2023
PubMed
Summary
This summary is machine-generated.

A new rapid DNA recombination method, the Murakami-system, significantly speeds up plasmid DNA cloning and functional analysis. This optimized protocol allows experiments to be completed in under 33 hours, enhancing research efficiency.

Keywords:
Competent cellDnaPcrPlasmidRapid method for plasmid DNA recombination (Murakami-system)

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Area of Science:

  • Molecular Biology
  • Biotechnology

Background:

  • Standard plasmid DNA recombination techniques are time-consuming.
  • Efficient cloning and functional analysis are crucial for genetic research.

Purpose of the Study:

  • To develop a rapid method for plasmid DNA recombination.
  • To reduce the time required for cloning and functional analysis experiments.

Main Methods:

  • Developed the "Murakami-system" for rapid plasmid DNA recombination.
  • Utilized PCR amplification (25 cycles) and a fast-growing *E. coli* strain (6-8h incubation).
  • Integrated rapid plasmid DNA purification (mini-prep, ~10 min) and restriction enzyme digestion (20 min).

Main Results:

  • Achieved plasmid DNA recombination within 24-33 hours.
  • Established a 1-day protocol for competent cell preparation.
  • Enabled multiple recombination cycles per week, accelerating gene functional analysis.

Conclusions:

  • The Murakami-system offers a significantly faster approach to plasmid DNA recombination.
  • This rapid method enhances the efficiency of gene cloning and functional studies.
  • The system is applicable to various research fields requiring timely genetic manipulation.