1. Institute of Biochemistry and Molecular Biology, ZBMZ 1 , Faculty of Medicine , , 79104 Freiburg , Germany
2. University of Freiburg 1 , Faculty of Medicine , , 79104 Freiburg , Germany
3. CIBSS - Centre for Integrative Biological Signalling Studies, University of Freiburg 2 , 79104 Freiburg , Germany
4. Institute for Cell Biology and Neuroscience, Goethe University Frankfurt 3 Department of Structural Cell Biology , , 60438 Frankfurt , Germany
5. Institute of Biochemistry II 4 , Faculty of Medicine , , 60590 Frankfurt , Germany
6. Goethe University Frankfurt 4 , Faculty of Medicine , , 60590 Frankfurt , Germany
7. University of Freiburg 5 Faculty of Biology , , 79104 Freiburg , Germany