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Related Experiment Video

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Protocol for High Throughput Screening of Antibody Phage Libraries.

Vanshika Singh1, Sonal Garg1, Nisha Raj1

  • 1Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana-121001, India.

Bio-Protocol
|July 22, 2022
PubMed
Summary

Phage display is a powerful antibody selection tool. This study introduces a new vector system to improve screening efficiency for antibodies, overcoming challenges with amber codons in phage libraries.

Keywords:
Amber codonHigh-throughput screeningNovel vector systemPhage displayscFv

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Area of Science:

  • Biotechnology
  • Molecular Biology
  • Immunology

Background:

  • Phage display is a widely used technology for antibody selection.
  • Screening large libraries for specific antibodies is labor-intensive.
  • Synthetic libraries can be biased by amber stop codons, complicating antibody identification.

Purpose of the Study:

  • To develop an improved method for screening phage display libraries.
  • To overcome the challenge of identifying antibody clones with amber stop codons.
  • To facilitate the isolation of useful single-chain variable fragment (scFv) antibodies.

Main Methods:

  • Development of a novel vector system for soluble antibody production.
  • Implementation of a step-by-step approach for effective phage library screening.
  • Utilizing phage ELISA to identify positive binding clones.

Main Results:

  • The new vector system enables soluble production of scFv clones with amber stop codons.
  • The presented method simplifies the screening process for desirable antibody clones.
  • Effective isolation of useful antibodies from complex libraries is achieved.

Conclusions:

  • The developed vector system and screening strategy enhance the efficiency of antibody discovery via phage display.
  • This approach mitigates issues associated with amber codons in antibody selection.
  • The method provides a valuable tool for isolating specific and functional antibodies.