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Collective molecular dynamics in proteins and membranes (Review)
Biointerphases volume 3, pages FB83–FB90 (2008)
Abstract
The understanding of dynamics and functioning of biological membranes and, in particular, of membrane embedded proteins is one of the most fundamental problems and challenges in modern biology and biophysics. In particular, the impact of membrane composition and properties and of structure and dynamics of the surrounding hydration water on protein function is an upcoming topic, which can be addressed by modern experimental and computational techniques. Correlated molecular motions might play a crucial role for the understanding of, for instance, transport processes and elastic properties, and might be relevant for protein function. Experimentally that involves determining dispersion relations for the different molecular components, i.e., the length scale dependent excitation frequencies and relaxation rates. Only very few experimental techniques can access dynamical properties in biological materials on the nanometer scale, and resolve dynamics of lipid molecules, hydration water molecules, and proteins and the interaction between them. In this context, inelastic neutron scattering turned out to be a very powerful tool to study dynamics and interactions in biomolecular materials up to relevant nanosecond time scales and down to the nanometer length scale. The author reviews and discusses inelastic neutron scattering experiments to study membrane elasticity and protein-protein interactions of membrane embedded proteins.
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Rheinstädter, M.C. Collective molecular dynamics in proteins and membranes (Review). Biointerphases 3, FB83–FB90 (2008). https://doi.org/10.1116/1.3007992
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DOI: https://doi.org/10.1116/1.3007992