Improvements of network approach for analysis of the folding free-energy surface of peptides and proteins

Journal of Computational Chemistry
Xuewei JiangYi Xiao

Abstract

Folding network is an effective approach to investigate the high-dimensional free-energy surface of peptide and protein folding, and it can avoid the limitations of the projected free-energy surface based on two-order parameters. In this article, we present improvements of the effectiveness and accuracy of the folding network analysis based on Markov cluster (MCL) algorithm. We used this approach to investigate the folding free-energy surface of the beta-hairpin peptide trpzip2 and found the folding network is able to determine the basins and folding paths of trpzip2 more clearly and accurately than the two-dimensional free-energy surface.

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Jul 27, 2012·Journal of Biomolecular Structure & Dynamics·Changjun ChenYi Xiao
Nov 18, 2010·Biophysical Journal·Hongxing LeiYong Duan

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