1. Departments of Computer Science, Molecular and Cellular Physiology, and Structural Biology & Institute for Computational and Mathematical Engineering, Stanford University, Stanford, California 94305, United States
2. Pfizer Medicine Design, Eastern Point Road, Groton, Connecticut 06340, United States
3. Pfizer Medicine Design, The Portway, Granta Park, Cambridge CB21 6GS, U.K.
4. Pfizer Medicine Design, 610 Main Street, Cambridge, Massachusetts 02139, United States