Molecular interactions in protein crystals: Solvent accessible surface and stability
โ Scribed by Suhail A. Islam; Dr. David L. Weaver
- Book ID
- 105358520
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 402 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0887-3585
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
The accessible surface areas of 58 monomeric and dimeric proteins, when measured in the crystalline environment, are found to be simply related to molecular weight. The loss of accessible surface when the proteins go from a free to their crystalline environment is well defined, implying that the hydrophobic interaction, which has been found to contribute to protein folding and stability in living systems, also contributes to protein crystal stability.
๐ SIMILAR VOLUMES
We analyze the contact distance distributions between nonbonded atoms in known protein structures. A complete set of van der Waals (VDW) radii for 24 protein atom types and for crystal-bound water is derived from the contact distance distributions of these atoms with a selected group of apolar atoms
Contact surface area and chemical properties of atoms are used to concurrently predict conformations of multiple amino acid side chains on a fixed protein backbone. The combination of surface complementarity and solvent-accessible surface accounts for van der Waals forces and solvation free energy.