1. Department of Molecular Sociology, Max Planck Institute of Biophysics, 60438 Frankfurt am Main, Germany.
2. Faculty of Biochemistry, Chemistry and Pharmacy, Goethe University Frankfurt am Main, 60438 Frankfurt am Main, Germany.
3. IMPRS on Cellular Biophysics, 60438 Frankfurt am Main, Germany.
4. Central Electron Microscopy Facility, Max Planck Institute of Biophysics, 60438 Frankfurt am Main, Germany.
5. Institute of Biochemistry, Goethe University Frankfurt, Frankfurt am Main, Germany.