Accurate and efficient generalized born model based on solvent accessibility : derivation and application for LogP octanol/water prediction and flexible peptide docking
Copyright 2004 Wiley Periodicals, Inc. J Comput Chem 25: 609-619, 2004
| Veröffentlicht in: | Journal of computational chemistry. - 1984. - 25(2004), 4 vom: 16. März, Seite 609-19 |
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| 1. Verfasser: | |
| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2004
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| Zugriff auf das übergeordnete Werk: | Journal of computational chemistry |
| Schlagworte: | Journal Article Octanols Peptides Solvents Water 059QF0KO0R |
| Zusammenfassung: | Copyright 2004 Wiley Periodicals, Inc. J Comput Chem 25: 609-619, 2004 A novel method for fast and accurate evaluation of the generalized Born radii in macromolecular solvation electrostatics calculations is proposed, based on the solvent accessibility of the first two solvation layers around an atom. The reverse generalized Born radii calculated by the method have correlation coefficient of 98.7% and RMSD of 0.031 A(-1) with the values obtained using a precise but significantly slower numerical boundary element solution. The method is applied to derive an estimate of the free solvation energy difference between octanol and water and to predict LogP octanol-water. A nine-parameter model is optimized on an 81 compound training set and applied to predict LogP(ow) for an external evaluation set of 19 drug molecules with RMSD of 0.9. The new GB approximation is also tested in Monte Carlo docking simulations of the fully flexible p53 peptide fragment to MDM2. The best energy solution found in the simulations has RMSD of 2.8 A to the X-ray structure |
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| Beschreibung: | Date Completed 12.04.2004 Date Revised 21.11.2013 published: Print Citation Status MEDLINE |
| ISSN: | 1096-987X |