1. Department
of Physics and Center of Soft Matter and Biological Physics, Virginia Tech, Blacksburg, Virginia 24061, United States
2. Department
of Chemistry, Wichita State University, Wichita, Kansas 67260, United States
3. Protein
Signaling Domains Laboratory, Department of Biological Sciences, Biocomplexity
Institute, and Center of Soft Matter and Biological Physics, Virginia Tech, Blacksburg, Virginia 24061, United States