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Updated: Jun 15, 2026

Method for Efficient Refolding and Purification of Chemoreceptor Ligand Binding Domain
Published on: December 12, 2017
Step-wise refolding of recombinant proteins
Kouhei Tsumoto1, Tsutomu Arakawa, Linda Chen
1Department of Medical Genome Sciences, Graduate School of Engineering, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8562, Japan. tsumoto@k.u-tokyo.ac.jp
Protein refolding is challenging. This study introduces step-wise dialysis refolding, a method controlling protein folding pathways by adjusting denaturant concentrations for sequential folding and disulfide bond formation.
Area of Science:
- Biochemistry
- Protein Chemistry
- Molecular Biology
Background:
- Protein refolding is often inefficient and relies on empirical methods.
- Achieving correct protein conformation and disulfide bonds is crucial for biological activity.
Purpose of the Study:
- To present a novel, controlled method for protein refolding.
- To improve the efficiency and predictability of protein refolding processes.
Main Methods:
- Developed a step-wise dialysis refolding technique.
- Systematically altered denaturant concentrations during dialysis.
- Incorporated solvent additives to guide the folding pathway.
Main Results:
- Demonstrated control over protein folding pathways.
- Enabled sequential folding and disulfide bond formation.
- Provided a more rational approach to protein refolding.
Conclusions:
- Step-wise dialysis refolding offers a more controlled and predictable alternative to traditional methods.
- This technique can enhance the success rate of refolding proteins with complex structures.
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