Multidimensional virtual-system coupled canonical molecular dynamics to compute free-energy landscapes of peptide multimer assembly

© 2019 Wiley Periodicals, Inc.

Bibliographische Detailangaben
Veröffentlicht in:Journal of computational chemistry. - 1984. - 40(2019), 28 vom: 30. Okt., Seite 2453-2463
1. Verfasser: Hayami, Tomonori (VerfasserIn)
Weitere Verfasser: Higo, Junichi, Nakamura, Haruki, Kasahara, Kota
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Journal of computational chemistry
Schlagworte:Journal Article Research Support, Non-U.S. Gov't enhanced conformational sampling free-energy landscape generalized-ensemble approach molecular dynamics protein-protein interaction Peptides
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520 |a An enhanced-sampling method termed multidimensional virtual-system coupled canonical molecular dynamics (mD-VcMD) method is developed. In many cases, generalized-ensemble methods realizing enhanced sampling, for example, adaptive umbrella sampling, apply an effective potential, which is derived from temporarily assumed canonical distribution as a function of one or more arbitrarily defined reaction coordinates. However, it is not straightforward to estimate the appropriate canonical distribution, especially for cases applying multiple reaction coordinates. The current method, mD-VcMD, does not rely on the form of the canonical distribution. Therefore, it is practically useful to explore a high-dimensional reaction-coordinate space. In this article, formulation of mD-VcMD and its evaluation with the simple molecular models consisting of three or four alanine peptides are presented. We confirmed that mD-VcMD efficiently searched 2D and 3D reaction-coordinate spaces defined as interpeptide distances. Direct comparisons with results of long-term canonical MD simulations revealed that mD-VcMD produces correct canonical ensembles. © 2019 Wiley Periodicals, Inc 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a enhanced conformational sampling 
650 4 |a free-energy landscape 
650 4 |a generalized-ensemble approach 
650 4 |a molecular dynamics 
650 4 |a protein-protein interaction 
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700 1 |a Higo, Junichi  |e verfasserin  |4 aut 
700 1 |a Nakamura, Haruki  |e verfasserin  |4 aut 
700 1 |a Kasahara, Kota  |e verfasserin  |4 aut 
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