Using the folding landscapes of proteins to understand protein function

Area of Science:

• Biochemistry
• Structural Biology
• Evolutionary Biology

Background:

• Proteins fold rapidly due to an evolutionary-shaped, funnel-like energy landscape.
• This landscape balances stabilizing native interactions and preventing non-native ones.
• Functional residues, crucial for protein activity, are under strong evolutionary selection and can impact folding.

Purpose of the Study:

• To survey the impact of functional residues on protein folding energy landscapes.
• To review computational methods for detecting these effects.
• To explore the use of these effects as assays for protein function.

Main Methods:

• Review of existing literature and case studies.
• Computational analysis of residue effects on folding landscapes.
• Functional assays based on folding modulation.

Main Results:

• Functional residues can significantly alter protein folding pathways.
• Computational approaches can identify and quantify these modulations.
• These modulations can serve as indicators of protein function.

Conclusions:

• Functional residues present a unique challenge and opportunity in protein folding.
• Understanding residue-mediated folding modulation offers insights into natural protein design.
• This knowledge is key for protein engineering and understanding protein homeostasis.