作者: K. Shawn Watts , Pranav Dalal , Robert B. Murphy , Woody Sherman , Rich A. Friesner
DOI: 10.1021/CI100015J
关键词: Pharmacophore 、 Biological system 、 Mathematics 、 Conformational isomerism 、 Ligand 、 Algorithm 、 Search algorithm 、 Parametrization 、 Heuristics 、 Crystal structure 、 Force field (chemistry)
摘要: We describe the methodology, parametrization, and application of a conformational search method, called ConfGen, designed to efficiently generate bioactive conformers. define efficiency as ability conformation within small total number conformations using reasonable amount computer time. The method combines physics-based force field calculations with empirically derived heuristics achieve efficient searching prioritization ligand’s space. While many parameter settings are supported, four modes spanning range speed quality trades-offs defined characterized. validation set used test is composed ligands from 667 crystal structures covering broad array target ligand classes. With fastest mode, ConfGen uses an average 0.5 s per generates only 14.3 conformers ligand, at least one which lies 2.0 A root-mean-squared deviation structure for 96%...