1. Department of Pharmacology and Department of Chemistry & Biochemistry, Howard Hughes Medical Institute, National Biomedical Computation Resource, University of California at San Diego, La Jolla, California 92093, United States
2. Department
of Mathematics and Quantitative Biology Graduate Program, University of California at San Diego, La Jolla, California 92093, United States
3. Institut
für Physik, Humboldt-Universität zu Berlin, D-12849,
Berlin, Germany, and Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin, D-14109, Berlin, Germany