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Practical considerations in refolding proteins from inclusion bodies.
Kouhei Tsumoto1, Daisuke Ejima, Izumi Kumagai
1Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Sendai, Japan.
Protein Expression and Purification
|March 26, 2003
Summary
Protein refolding from inclusion bodies depends on solubilization, denaturant removal, and additives. Understanding protein conformation and solubility changes is key for successful refolding and preventing aggregation.
Area of Science:
- Biochemistry
- Protein Chemistry
Background:
- Inclusion bodies are aggregates of misfolded proteins.
- Refolding proteins from inclusion bodies is crucial for biotechnology and therapeutics.
Purpose of the Study:
- To review critical factors influencing protein refolding from inclusion bodies.
- To analyze protein conformation, solubility changes, and the role of additives.
Main Methods:
- Review of literature on protein solubilization using denaturants.
- Analysis of conformational and solubility changes during denaturant removal.
- Examination of small molecule additives' effects on refolding and aggregation.
Main Results:
- Protein conformation post-solubilization significantly impacts refolding efficiency.
- Dynamic changes in protein conformation and solubility occur during refolding.
- Small molecule additives can enhance refolding and mitigate aggregation.
Conclusions:
- Optimizing solubilization and refolding conditions is essential.
- Controlling protein conformation and solubility is critical for successful refolding.
- Additives represent a promising strategy to improve protein refolding yields.