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The hydrophobic effect in protein folding

L Lins1, R Brasseur

  • 1Centre de Biophysique Moleculaire Numerique, Faculte Unversitaire de Gembloux, Belgium.

FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology
|April 1, 1995
PubMed
Summary

This review explores noncovalent interactions like electrostatic, Van der Waals, hydrogen bonding, and hydrophobic forces that stabilize protein conformation. It highlights the hydrophobic effect

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Area of Science:

  • Biochemistry and Molecular Biology
  • Physical Chemistry

Background:

  • Protein folding is crucial for biological function.
  • Noncovalent interactions dictate protein structure and stability.
  • Understanding these forces is key to protein science.

Purpose of the Study:

  • To review the noncovalent interactions governing protein folding.
  • To discuss the contribution of electrostatic, Van der Waals, hydrogen bonding, and hydrophobic interactions to protein conformation.
  • To illustrate the distinct energetic contributions using specific protein examples.

Main Methods:

  • Literature review of noncovalent interactions in protein folding.
  • Description of electrostatic, Van der Waals, hydrogen bonding, and hydrophobic forces.
  • Semiempirical simulation of free energy of solvation proposed for hydrophobic effect analysis.

Main Results:

  • Noncovalent interactions are fundamental to protein stability.
  • The hydrophobic effect plays a significant role in protein folding.
  • Apolipoproteins and cytochrome C551 exemplify the distinct energetic contributions of these forces.

Conclusions:

  • Noncovalent interactions collectively stabilize protein conformations.
  • The hydrophobic effect is a major driving force in protein folding.
  • Specific proteins allow for clear illustration of individual interaction energy fields.

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