1. Department of Chemistry and Biochemistry Freie Universität Berlin Arnimallee 20 14195 Berlin Germany
2. Mathematics for Life and Materials Sciences Zuse Institute Berlin Takustraße 7 14195 Berlin Germany
3. Department of Physics Experimental Molecular Biophysics Freie Universität Berlin Arnimallee 14 14195 Berlin Germany
4. Research Center for Electron Microscopy and Core Facility BioSupraMol Freie Universität Berlin Fabeckstraße 36a 14195 Berlin Germany
5. Nakagami JEOL, Ltd Akishima Tokyo 196 Japan