Refolding of cytochrome c using reversed micelles

Area of Science:

• Biochemistry
• Protein Chemistry
• Biophysical Chemistry

Background:

• Protein misfolding is a significant challenge in biotechnology.
• Conventional refolding methods often suffer from low efficiency and protein aggregation.
• Developing novel strategies for efficient protein refolding is crucial.

Purpose of the Study:

• To develop a novel protein refolding method using reversed micelles.
• To investigate the efficiency of this method for high-concentration protein refolding.
• To optimize the solubilization and recovery steps for denatured proteins.

Main Methods:

• Utilized AOT reversed micelles for solubilizing denatured bovine heart cytochrome c.
• Employed a solid-liquid extraction technique for protein solubilization.
• Investigated the effect of urea and alcohol on solubilization and back-extraction efficiency.

Main Results:

• Successfully solubilized denatured cytochrome c in AOT reversed micelles.
• Demonstrated that low urea concentrations facilitate protein solubilization.
• Achieved efficient recovery of renatured cytochrome c using an alcohol-assisted back-extraction process.

Conclusions:

• The novel reversed micelle method enables efficient refolding of denatured proteins at high concentrations.
• This technique offers a promising alternative to conventional buffer dilution methods.
• The nanostructural environment within reversed micelles promotes protein renaturation.