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  • Title: Effects of hydration water on protein methyl group dynamics in solution.
    Author: Russo D, Hura GL, Copley JR.
    Journal: Phys Rev E Stat Nonlin Soft Matter Phys; 2007 Apr; 75(4 Pt 1):040902. PubMed ID: 17500858.
    Abstract:
    Elastic and quasielastic neutron scattering experiments have been used to investigate the dynamics of methyl groups in a protein-model hydrophobic peptide in solution. The results suggest that, when the hydrophobic side chains are hydrated by a single hydration water layer, the only allowed motions are confined and attributed to librational and rotational movement associated with the methyl groups. They provide unique experimental evidence that the structural and dynamical properties of the interfacial water strongly influence the side-chain dynamics and the activation of diffusive motion.
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