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Affinity chromatography on a hydrophobic matrix using a heterobifunctional ligand
R Kaul1, U Olsson, B Mattiasson
1Department of Biotechnology, University of Lund, Sweden.
Journal of Chromatography
|April 22, 1988
Summary
This study introduces a versatile affinity chromatography method using modified soybean trypsin inhibitor and hydrophobic supports for robust protein purification. The technique allows for efficient binding and purification of target proteins, even when immobilized.
Area of Science:
- Biochemistry
- Chromatography
- Protein Purification
Background:
- Affinity chromatography is a powerful technique for protein purification.
- Developing generalizable and robust methods is crucial for biochemical research.
Purpose of the Study:
- To describe a novel affinity adsorption chromatographic purification technique.
- To demonstrate the applicability of this method using soybean trypsin inhibitor.
Main Methods:
- Modification of soybean trypsin inhibitor with a detergent to attach hydrophobic residues.
- Utilizing octyl-Sepharose as a hydrophobic support for affinity adsorption.
- Assessing the binding capacity of the modified inhibitor to trypsin before and after immobilization.
Main Results:
- Soybean trypsin inhibitor was successfully modified with hydrophobic residues.
- The modified inhibitor bound effectively to the octyl-Sepharose column.
- The immobilized inhibitor retained its ability to bind trypsin.
Conclusions:
- The described method provides a robust and generalizable approach for affinity purification.
- This technique offers a new avenue for purifying proteins with retained biological activity.