Free-Energy Calculations in Protein Folding by Generalized-Ensemble Algorithms

Y. Sugita; Y. Okamoto

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arXiv · cond-mat/0102296

Free-Energy Calculations in Protein Folding by Generalized-Ensemble Algorithms

Y. Sugita·Y. Okamoto

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Abstract

We review uses of the generalized-ensemble algorithms for free-energy calculations in protein folding. Two of the well-known methods are multicanonical algorithm and replica-exchange method; the latter is also referred to as parallel tempering. We present a new generalized-ensemble algorithm that combines the merits of the two methods; it is referred to as the replica-exchange multicanonical algorithm. We also give a multidimensional extension of the replica-exchange method. Its realization as an umbrella sampling method, which we refer to as the replica-exchange umbrella sampling, is a powerful algorithm that can give free energy in wide reaction coordinate space.

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BibTeX RIS

Y. Sugita, Y. Okamoto. 2001-02-16. Free-Energy Calculations in Protein Folding by Generalized-Ensemble Algorithms. https://arxiv.org/abs/cond-mat/0102296

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