1. Max Planck Laboratory
for Structural Biology, Chemistry and Molecular Biophysics of Rosario
and Instituto de Investigaciones para el Descubrimiento de Fármacos
de Rosario, Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK Rosario, Argentina
2. Centro de Investigación y de Estudios Avanzados, Av. Instituto Politécnico
Nacional 2508, 07360 D.F., México
3. Department of NMR-based
Structural Biology, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, D-37077 Göttingen, Germany
4. Deutches Zentrum für Neurodegenerative Erkrankungen, von-Siebold-Str. 3a, 37075 Göttingen, Germany
5. Department of Neurology, University Medical Center Göttingen, University of Göttingen, Waldweg 33, 37073 Göttingen, Germany