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Related Experiment Videos

Cloning allergens via phage display.

Claudio Rhyner1, Michael Weichel, Sabine Flückiger

  • 1Swiss Institute of Allergy and Asthma Research (SIAF), Obere Strasse 22, CH-7270 Davos, Switzerland.

Methods (San Diego, Calif.)
|February 14, 2004
PubMed
Summary

Phage surface display technology rapidly isolates allergens by linking gene information to their displayed protein. This method, using IgE from allergic individuals, accelerates the discovery of molecules causing allergic reactions.

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Area of Science:

  • Immunology
  • Molecular Biology
  • Biotechnology

Background:

  • Classical cloning methods have identified many allergens, but the full repertoire remains unknown.
  • Serum IgE from allergic individuals is crucial for identifying allergenic structures.

Purpose of the Study:

  • To investigate the utility of phage surface display technology for rapid allergen isolation.
  • To identify novel allergenic structures using IgE-affinity based screening.

Main Methods:

  • Construction and screening of cDNA libraries displayed on phage surface.
  • Utilizing serum IgE from allergic individuals for affinity selection.
  • Employing robotic high-throughput screening and DNA sequencing.

Main Results:

Related Experiment Videos

  • Phage surface display successfully isolated a wide range of IgE-binding structures.
  • The technology enables rapid identification and sequencing of allergens.
  • Demonstrated successful linkage of phenotype (displayed protein) to genotype (phage genome).

Conclusions:

  • Phage surface display is a powerful tool for accelerating allergen discovery.
  • This technology significantly contributes to understanding the molecular basis of allergies.
  • Further research can explore limitations and optimize expression systems for broader allergen identification.