Related Experiment Videos
A kinetic model for a biopanning process considering antigen desorption and effective antigen concentration on a
G Zhuang1, Y Katakura, T Furuta
1Department of Biotechnology, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan.
Journal of Bioscience and Bioengineering
|October 20, 2005
Summary
This study introduces a kinetic model for phage display affinity selection, accounting for antigen desorption and orientation. The model accurately predicts phage recovery, optimizing biopanning protocols for antibody screening.
Area of Science:
- Biotechnology
- Molecular Biology
- Biochemistry
Background:
- Phage display libraries are crucial for identifying specific ligands like antibodies and peptides.
- Understanding the kinetics of affinity selection is essential for optimizing screening processes.
Purpose of the Study:
- To establish and experimentally validate a kinetic model for the affinity selection process in phage display.
- To incorporate antigen desorption and epitope orientation into the phage display kinetic model.
Main Methods:
- Development of a kinetic model for phage display affinity selection.
- Experimental verification using bovine pancreatic ribonuclease A (RNase A) and an anti-RNase A single-chain Fv phage antibody.
- Quantification of effective antigen density and desorption rates.
Main Results:
- The kinetic model accurately describes phage antibody recovery during biopanning.
- The ratio of effective to total antigen density was determined to be 0.0127 ± 0.0018.
- Key parameters influencing recovery include antigen concentration, desorption rate, antibody-antigen binding kinetics, and biopanning timings.
Conclusions:
- The developed kinetic model provides a robust framework for understanding and optimizing phage display biopanning.
- The model's ability to predict phage recovery facilitates the design of more efficient screening protocols.
- This work enhances the application of phage display for antibody and peptide ligand discovery.