1. Center of Biophysics and Quantitative Biology, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
2. Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
3. Department of Physics, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
4. Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
5. National Center for Supercomputing Applications, Urbana, Illinois 61801, United States