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Curr Opin Struct Biol. 2013 Feb;23(1):58-65. doi: 10.1016/j.sbi.2012.11.002. Epub 2012 Dec 10.

To milliseconds and beyond: challenges in the simulation of protein folding.

Author information

1
Department of Chemistry, Stanford University, United States.

Abstract

Quantitatively accurate all-atom molecular dynamics (MD) simulations of protein folding have long been considered a holy grail of computational biology. Due to the large system sizes and long timescales involved, such a pursuit was for many years computationally intractable. Further, sufficiently accurate forcefields needed to be developed in order to realistically model folding. This decade, however, saw the first reports of folding simulations describing kinetics on the order of milliseconds, placing many proteins firmly within reach of these methods. Progress in sampling and forcefield accuracy, however, presents a new challenge: how to turn huge MD datasets into scientific understanding. Here, we review recent progress in MD simulation techniques and show how the vast datasets generated by such techniques present new challenges for analysis. We critically discuss the state of the art, including reaction coordinate and Markov state model (MSM) methods, and provide a perspective for the future.

PMID:
23237705
PMCID:
PMC3673555
DOI:
10.1016/j.sbi.2012.11.002
[Indexed for MEDLINE]
Free PMC Article
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