Ion Specific Protein Assembly and Hydrophobic Surface Forces
作者： Mikael Lund , Pavel Jungwirth , Clifford E. Woodward
DOI: 10.1103/PHYSREVLETT.100.258105
关键词:
摘要: Large anions are attracted to hydrophobic surfaces while smaller, well solvated ions repelled. Using a combination of explicit solvent and continuum model simulations we show that this leads significant ion-specific protein-protein interactions due patches on the protein surfaces. In solutions NaI NaCl calculate potentials mean force find resulting second virial coefficients for lysozyme correspond with experiment. We argue ionic nonpolar surface groups may play an important role biomolecular assembly Hofmeister-type effects.
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