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Wiley, Chemical Biology & Drug Design, 1(83), p. 37-51, 2013

DOI: 10.1111/cbdd.12202

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Optimization of Compound Ranking for Structure-Based Virtual Ligand Screening Using an Established FRED-Surflex Consensus Approach

This paper is available in a repository.
This paper is available in a repository.

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Abstract

Use of multiple target conformers has been applied successfully in virtual screening campaigns; however a study on how to best combine scores for multiple targets in a hierarchic method that combines rigid and flexible docking is not available. In this study, we used a dataset of 59,479 compounds to screen multiple conformers of four distinct protein targets to obtain an adapted and optimized combination of an established hierarchic method that employs the programs FRED and Surflex. Our study was extended and verified by application of our protocol to ten different data sets from the directory of useful decoys (DUD). We quantitated overall method performance in ensemble docking and compared several consensus scoring methods to improve the enrichment during virtual ligand screening. We conclude that one of the methods used, which employs a consensus weighted scoring of multiple target conformers, performs consistently better than methods that do not include such consensus scoring. For optimal overall performance in ensemble docking, it is advisable to first calculate a consensus of FRED results and use this consensus as a sub-dataset for Surflex screening. Furthermore we identified an optimal method for each of the chosen targets and propose how to optimize the enrichment for any target. This article is protected by copyright. All rights reserved.