1. Max-Planck-Institute for Neurobiology, Am
Klopferspitz 18, 82152 Munich-Martinsried, Germany
2. Biozentrum, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
3. Heidelberg University Biochemistry Center, Im Neuenheimer Feld 328, 69120 Heidelberg, Germany
4. Department of Structural Biology & Biophysics, Pfizer, Groton, Connecticut 06340, United States
5. Axon
Growth and Regeneration Group, Deutsches Zentrum für Neurodegenerative Erkrankungen, 51375 Bonn, Germany
6. Department
of Functional Neuroanatomy, University of Heidelberg, Im Neuenheimer
Feld 307, 69120 Heidelberg, Germany