1. Laboratory for Biomolecular Simulation Research, Center for Integrative Proteomics Research and Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854, United States
2. Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
3. A9.com, Palo Alto, California 94301, United States
4. Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
5. GlaxoSmithKline PLC, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States