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Evaluation of the performance of 3D virtual screening programs: docking vs. structure-based pharmacophore
© Erlenkamp et al; licensee BioMed Central Ltd. 2009
Published: 05 June 2009
Virtual screening (VS) techniques are well established methods in the modern drug discovery process and an almost unmanageable number of different 3D VS techniques are available today. Beside protein-ligand docking approaches, pharmacophore search methods are applied to screen large compound libraries to identify potential hits. In recent years, structure-based pharmacophores became more and more popular for virtual screening when 3D information about the target protein is available. In the present work we have analyzed and compared the performance of two docking programs (GOLD and ParaDocks) and the pharmacophore-based procedure within the program LigandScout. For our evaluation study we choose the Astex Diverse Set including 85 protein-ligand structures and decoy sets derived from the NCI and the Derwent WDI database. Beside the reproducibility of the experimentally derived structures, a special focus was given to the discrimination between known actives and inactives. For this purpose we have analyzed in a retrospective way several real life examples from our laboratory.
This article is published under license to BioMed Central Ltd.