1. Department of Fundamental Microbiology (DMF), Faculty of Biology and Medicine (FBM), University of Lausanne (UNIL), Lausanne, Switzerland.
2. Research Institute of Molecular Pathology (IMP), Vienna BioCenter (VBC) and Medical University of Vienna, Vienna, Austria.
3. Laboratory of Statistical Biophysics, Institute of Physics, School of Basic Sciences and Institute of Bioengineering, School of Life Sciences, École Polytechnique Féderale de Lausanne (EPFL), Lausanne, Switzerland.
4. Structural Cell Biology, Max Planck Institute of Biochemistry, Martinsried, Germany.