1. Department of Pharmacology, Emory University, 1510 Clifton Road, Atlanta, Georgia 30322, United States
2. Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
3. Department of Cell Biology and Physiology, Washington University, St Louis, Missouri 63110, United States
4. Department of Drug Discovery and Development, Auburn University, Auburn, Alabama 36849, United States
5. Center for Biomolecular Structure and Dynamics, Center for Structural and Functional Neuroscience, Division for Biological Sciences, University of Montana, 32 Campus Drive, Missoula, Montana 59812, United States