1. Department of Computer Science, Georgia State University, Atlanta, Georgia.
2. Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, California.
3. Department of Computer Science, University of California, Los Angeles, Los Angeles, California.
4. Institute for Quantitative and Computational Biosciences, University of California Los Angeles, Los Angeles, California.
5. Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, California.