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Related Experiment Videos

Antibody engineering by codon-based mutagenesis in a filamentous phage vector system.

S M Glaser1, D E Yelton, W D Huse

  • 1Ixsys, Inc., San Diego, CA 92121.

Journal of Immunology (Baltimore, Md. : 1950)
|December 15, 1992
PubMed
Summary

This study introduces a new method for antibody engineering using codon-based mutagenesis. This technique efficiently generates antibody variants with altered binding specificities for improved therapeutic applications.

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Area of Science:

  • Immunology
  • Molecular Biology
  • Biotechnology

Background:

  • Antibody engineering is crucial for developing targeted therapies.
  • Modifying antibody specificity and affinity requires efficient genetic manipulation techniques.

Purpose of the Study:

  • To develop a novel codon-based mutagenesis procedure for rapid antibody sequence modification.
  • To generate and screen antibody variants with altered binding characteristics.

Main Methods:

  • Utilized M13 phage display for expressing antibody fragments (F(ab)).
  • Employed codon-based mutagenesis to introduce mutations in complementarity-determining regions.
  • Screened for antibody variants with altered reactivity against anti-idiotypic antibodies.

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Main Results:

  • Successfully generated a library of mutations in the L6 antibody's complementarity-determining regions.
  • Identified a high frequency of M13 phage clones with altered specificity for anti-idiotypic antibodies.
  • Demonstrated the ability to select mutants with modified binding profiles.

Conclusions:

  • Codon-based mutagenesis combined with M13 phage display is an efficient method for antibody engineering.
  • This approach facilitates the redirection of antibody specificity and potential affinity enhancement.
  • The system offers a general strategy for in vitro antibody optimization.