1. Department of Chemistry, Stanford University, Stanford, California 94305, United
States
2. Department of Chemistry, Bioengineering, Chemical & Biomolecular Engineering, University of California, Berkeley, California 94720, United States
3. Department of Chemistry, Washington University, St. Louis, Missouri 63130, United
States
4. Department of Biomedical
Engineering, University of Texas, Austin,
Texas 78712, United States
5. Computational Biology Program, Sloan-Kettering Institute, New York, New York 10065,
United States