1. Center for Drug Discovery, Department of Pathology & Immunology, Baylor College of Medicine, Houston, Texas 77030, United States
2. NMR and Drug Metabolism Core, Advanced Technology Cores, Baylor College of Medicine, Houston, Texas 77030, United States
3. Department of Pharmacology & Chemical Biology, Baylor College of Medicine, Houston, Texas 77030, United States
4. Division of Biochemical Toxicology, National Center for Toxicological Research/U.S. Food and Drug Administration (FDA), Jefferson, Arkansas 72079, United States
5. Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, Texas 77030, United States