期刊
METHODS
卷 52, 期 1, 页码 74-83出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ymeth.2010.05.007
关键词
THz spectroscopy; MD simulations; Solvation; Proteins; Folding; Solvation dynamics; Low frequency motions; Protein dynamics; Protein folding
资金
- German National Academic Foundation
- Ruhr University Research School
- Deutsche Forschungsgemeinschaft (DFG)
THz spectroscopy is combined with MD simulations to study the dynamical properties of water in the solvation shell of proteins. The solvation dynamics is found to be influenced on length-scales of several hydration layers which is significantly more than what is found for static properties. Our experiments show that the properties of this dynamical solvation shell depend on the folding state of the protein. Kinetic THz absorption studies allow us to observe the formation of the dynamical solvation shell of the native protein upon folding. The experimental results can be reproduced using MD simulations which helps to develop a molecular understanding in terms of retardation of water dynamics. (C) 2010 Elsevier Inc. All rights reserved.
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