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pubmed-article:17059230pubmed:dateCreated2006-10-24lld:pubmed
pubmed-article:17059230pubmed:abstractTextThis work presents a systematic multiscale methodology to provide a more faithful representation of real dynamics in coarse-grained molecular simulation models. The theoretical formalism is based on the recently developed multiscale coarse-graining (MS-CG) method [S. Izvekov and G. A. Voth, J. Phys. Chem. B. 109, 2469 (2005); J. Chem. Phys. 123, 134105 (2005)] and relies on the generalized Langevin equation approach and its simpler Langevin equation limit. The friction coefficients are determined in multiscale fashion from the underlying all-atom molecular dynamics simulations using force-velocity and velocity-velocity correlation functions for the coarse-grained sites. The diffusion properties in the resulting CG Brownian dynamics simulations are shown to be quite accurate. The time dependence of the velocity autocorrelation function is also well-reproduced relative to the all-atom model if sufficient resolution of the CG sites is implemented.lld:pubmed
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pubmed-article:17059230pubmed:authorpubmed-author:VothGregory...lld:pubmed
pubmed-article:17059230pubmed:authorpubmed-author:IzvekovSergei...lld:pubmed
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pubmed-article:17059230pubmed:year2006lld:pubmed
pubmed-article:17059230pubmed:articleTitleModeling real dynamics in the coarse-grained representation of condensed phase systems.lld:pubmed
pubmed-article:17059230pubmed:affiliationCenter for Biophysical Modeling and Simulation and Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850, USA.lld:pubmed
pubmed-article:17059230pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:17059230pubmed:publicationTypeResearch Support, U.S. Gov't, Non-P.H.S.lld:pubmed
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