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J Med Chem. 2013 Sep 12;56(17):6560-72. doi: 10.1021/jm301916b. Epub 2013 Jun 7.

Hit identification and optimization in virtual screening: practical recommendations based on a critical literature analysis.

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1
Center for Pharmaceutical Biotechnology, University of Illinois at Chicago , 900 S. Ashland Avenue, Suite 3100, Chicago, Illinois 60607-7173, United States.

Abstract

A critical analysis of virtual screening results published between 2007 and 2011 was performed. The activity of reported hit compounds from over 400 studies was compared to their hit identification criteria. Hit rates and ligand efficiencies were calculated to assist in these analyses, and the results were compared with factors such as the size of the virtual library and the number of compounds tested. A series of promiscuity, druglike, and ADMET filters were applied to the reported hits to assess the quality of compounds reported, and a careful analysis of a subset of the studies that presented hit optimization was performed. These data allowed us to make several practical recommendations with respect to selection of compounds for experimental testing, definition of hit identification criteria, and general virtual screening hit criteria to allow for realistic hit optimization. A key recommendation is the use of size-targeted ligand efficiency values as hit identification criteria.

PMID:
23688234
PMCID:
PMC3772997
DOI:
10.1021/jm301916b
[Indexed for MEDLINE]
Free PMC Article
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