1. Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
2. Center for Biophysics and Quantitative Biology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
3. National Center for Supercomputing Applications, University of Illinois, Urbana, Illinois 61801, United States
4. Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
5. NIH Center for Macromolecular Modeling and Bioinformatics, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States