1. Laboratory
of Physical Chemistry, ETH Zürich, Vladimir-Prelog-Weg 2, 8093 Zürich, Switzerland
2. Center
for Cellular Imaging and Nano Analytics (C-CINA), Biozentrum University of Basel, 4085 Basel, Switzerland
3. Molecular
Microbiology and Structural Biochemistry, UMR 5086 CNRS, Université de Lyon 1, 7 passage du Vercors, 69367 Lyon, France
4. Structural
Biology Laboratory, The Salk Institute, 10010 N Torrey Pines Road, 92037 La Jolla, California, United States