1. James Franck Institute, University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
2. Department of Chemistry, University of Chicago, 5801 South Ellis Avenue, Chicago, Illinois 60637, United States
3. Mathematics and Computer Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439,United States
4. Institute for Biophysical Dynamics, University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States