1 A structural and kinetic link between membrane association and 1 amyloid fibril formation of α-Synuclein 2 3 4

3 4 Thibault Viennet, Michael M. Wördehoff, Boran Uluca, Chetan Poojari, Hamed 5 Shaykhalishahi, Dieter Willbold, Birgit Strodel, Henrike Heise, Alexander K. Buell, 6 Wolfgang Hoyer, Manuel Etzkorn 7 8 Institute of Physical Biology, Heinrich-Heine-University Düsseldorf, Germany 9 Instititue of Complex Systems, Forschungszentrum Jülich, Germany 10 Department of Physics, Tampere University of Technology, Finland 11 Department of Physics, University of Helsinki, Finland 12 13 14 15