Pressure effects on intra- and intermolecular interactions within proteins.

Area of Science:

• Biochemistry
• Molecular Biology
• Physical Chemistry

Background:

• Proteins are sensitive to environmental conditions, including pressure.
• Pressure can act as a denaturant, disrupting protein structure, particularly for multimeric proteins.
• Recent studies show pressure can also stabilize protein structures.

Purpose of the Study:

• To review the fundamental concepts of pressure effects on proteins.
• To summarize recent findings on how pressure impacts intra- and intermolecular interactions within proteins and protein complexes.
• To discuss the implications of these pressure-induced changes for protein structure-function relationships.

Main Methods:

• Review of existing literature on pressure effects on proteins.
• Analysis of molecular interactions (hydrophobic, electrostatic, van der Waals) under pressure.
• Examination of protein and solvent interactions.

Main Results:

• Pressure's effects on protein structure and function are complex and depend on pressure magnitude and reaction mechanisms.
• Both disruption (denaturation) and stabilization of proteins by pressure have been observed.
• Detailed studies now allow for a deeper understanding of pressure effects on individual molecular interactions within proteins.

Conclusions:

• While progress has been made, a complete understanding of protein responses to pressure remains challenging.
• Pressure significantly influences protein structure-function relationships by altering molecular interactions.
• Further research is needed to fully elucidate the mechanisms of pressure effects on proteins.