1. Department
of Biochemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
2. Center
for Biophysics and Computational Biology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
3. Department
of Veterinary Clinical Medicine, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
4. V.
V. Voevodsky Institute of Chemical Kinetics and Combustion, Russian Academy of Sciences, Novosibirsk 630090, Russian Federation
5. School
of Chemistry, The University of Manchester, Manchester M13 9PL, U.K.