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 at Urbana─Champaign, 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