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Related Experiment Videos

A T-extended vector using a green fluorescent protein as an indicator.

Y Ito1, M Suzuki, Y Husimi

  • 1Department of Functional Materials Science, Saitama University, Urawa, Japan.

Gene
|March 14, 2000
PubMed
Summary

This study introduces a novel T-vector using a bright green fluorescent protein (GFP) for efficient PCR product cloning. The GFP system offers superior sensitivity for detecting successful insertions compared to traditional methods.

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Area of Science:

  • Molecular Biology
  • Biotechnology
  • Genetics

Background:

  • T-extended vectors (T-vectors) are essential for direct cloning of PCR products.
  • Traditional screening methods like beta-galactosidase assays have limitations in sensitivity and ease of detection.
  • Developing improved screening systems is crucial for efficient molecular cloning.

Purpose of the Study:

  • To develop and evaluate a novel T-vector system utilizing a bright green fluorescent protein (GFP) mutant as an indicator for insertional inactivation.
  • To compare the sensitivity and effectiveness of the GFP-based screening system against the conventional beta-galactosidase system.

Main Methods:

  • Construction of a novel T-vector incorporating a bright GFP mutant.
  • Cloning of PCR products (100bp and 0.9kb) into the T-vector.

Related Experiment Videos

  • Screening of transformant colonies using fluorescent green-white screening under daylight conditions.
  • Comparative analysis of GFP system sensitivity versus beta-galactosidase system.

    • Main Results:

    • Successful cloning of PCR products of varying sizes (100bp and 0.9kb) using the novel T-vector.
    • Effective identification of transformant colonies with inserts via fluorescent green-white screening, even in daylight.
    • The GFP-based system demonstrated higher sensitivity to insertional inactivation compared to the beta-galactosidase system at standard insertion sites.

    Conclusions:

    • The novel GFP-based T-vector system provides a highly sensitive and easily detectable method for cloning PCR products.
    • This system offers advantages over conventional beta-galactosidase screening, particularly in terms of sensitivity and visual identification.
    • The developed T-vector is a valuable tool for molecular cloning, enhancing efficiency and simplifying the screening process.