1. Department of Chemistry and Biochemistry, The Ohio State University , 484 W 12th Avenue, Columbus, OH
2. Biophysics Graduate Program, The Ohio State University , 484 W 12th Avenue, Columbus, OH
3. Center for Electron Microscopy and Analysis, The Ohio State University , 1275-1305 Kinnear Road, Columbus, OH
4. Department of Biological Sciences, University at Buffalo , SUNY, 551 Cooke Hall, Buffalo, NY , USA