1. Department of Biochemistry and Structural Biology, Center for Molecular Protein Science, Lund University, 221 00 Lund, Sweden
2. Department of Biophysical Chemistry, Center for Molecular Protein Science, Lund University, 221 00 Lund, Sweden
3. Department of Chemistry and Center for Misfolding Diseases, University of Cambridge, Cambridge CB2 1EW, U.K.
4. Cavendish Laboratory, Department of Physics, JJ Thomson Avenue, Cambridge CB3 0HE, U.K.