Accurate, robust, and reliable calculations of Poisson-Boltzmann binding energies

© 2017 Wiley Periodicals, Inc.

Bibliographische Detailangaben
Veröffentlicht in:Journal of computational chemistry. - 1984. - 38(2017), 13 vom: 15. Mai, Seite 941-948
1. Verfasser: Nguyen, Duc D (VerfasserIn)
Weitere Verfasser: Wang, Bao, Wei, Guo-Wei
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Journal of computational chemistry
Schlagworte:Journal Article Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. accurate coarse grid Poisson-Boltzmann solver electrostatic binding free energy reaction field energy Solvents
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520 |a Poisson-Boltzmann (PB) model is one of the most popular implicit solvent models in biophysical modeling and computation. The ability of providing accurate and reliable PB estimation of electrostatic solvation free energy, ΔGel, and binding free energy, ΔΔGel, is important to computational biophysics and biochemistry. In this work, we investigate the grid dependence of our PB solver (MIBPB) with solvent excluded surfaces for estimating both electrostatic solvation free energies and electrostatic binding free energies. It is found that the relative absolute error of ΔGel obtained at the grid spacing of 1.0 Å compared to ΔGel at 0.2 Å averaged over 153 molecules is less than 0.2%. Our results indicate that the use of grid spacing 0.6 Å ensures accuracy and reliability in ΔΔGel calculation. In fact, the grid spacing of 1.1 Å appears to deliver adequate accuracy for high throughput screening. © 2017 Wiley Periodicals, Inc 
650 4 |a Journal Article 
650 4 |a Research Support, N.I.H., Extramural 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
650 4 |a accurate coarse grid Poisson-Boltzmann solver 
650 4 |a electrostatic binding free energy 
650 4 |a reaction field energy 
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700 1 |a Wang, Bao  |e verfasserin  |4 aut 
700 1 |a Wei, Guo-Wei  |e verfasserin  |4 aut 
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