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Protein Folding01:25

Protein Folding

Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
Protein Folding01:22

Protein Folding

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Related Experiment Video

Updated: Jul 4, 2026

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
09:22

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

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Solid-phase assisted refolding of carbonic anhydrase using beta-cyclodextrin-polyurethane polymer.

Mohammad Ali Esmaeili1, Razieh Yazdanparast

  • 1Institute of Biochemistry and Biophysics, University of Tehran, P.O. Box 13145-1384, Tehran, Iran.

The Protein Journal
|June 4, 2008
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel beta-cyclodextrin-polyurethane polymer for artificial chaperone-assisted protein refolding. This cost-effective method significantly improves refolding yield for denatured carbonic anhydrase, offering industrial advantages.

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Last Updated: Jul 4, 2026

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Area of Science:

  • Biochemistry
  • Polymer Science
  • Protein Engineering

Background:

  • Artificial chaperone-assisted refolding enhances protein refolding yields and suppresses aggregation.
  • Industrial application requires more efficient and cost-effective refolding techniques.

Purpose of the Study:

  • To design a novel beta-cyclodextrin-polyurethane polymer as a cost-effective stripping agent for artificial chaperone-assisted protein refolding.
  • To evaluate the efficiency of this new polymer in refolding denatured carbonic anhydrase.

Main Methods:

  • Synthesis of a beta-cyclodextrin-polyurethane polymer.
  • Development of an optimal refolding environment.
  • Assessing the refolding yield of denatured carbonic anhydrase using the synthesized polymer.

Main Results:

  • The beta-cyclodextrin-polyurethane polymer successfully refolded denatured carbonic anhydrase with a yield of 75% at 15 mg/mL.
  • The refolding yield was comparable to that achieved with soluble beta-cyclodextrin.
  • The new approach offers a significant cost reduction for industrial protein refolding.

Conclusions:

  • The beta-cyclodextrin-polyurethane polymer is a promising, cost-effective alternative to soluble beta-cyclodextrin for artificial chaperone-assisted protein refolding.
  • Further optimization of solid-phase artificial chaperone techniques, including stripping agents and refolding environments, is necessary.