1. Center for Drug Design & Bioinformatics and Computational Biology, Program; University of Minnesota; Minneapolis MN 55455 USA
2. Department of Chemistry and Biochemistry; Miami University; Oxford OH 45056 USA
3. Medical Service, Louis Stokes Cleveland Department of Veterans Affairs Medical Center; Cleveland OH 44106 USA
4. Department of Experimental and Clinical Pharmacology & Center for Orphan Drug Research; University of Minnesota; Minneapolis MN 55455 USA
5. Current address: Department of Integrative Biology & University of Minnesota Informatics Institute; University of Minnesota; Minneapolis MN 55455 USA