1. Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
2. Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA.
3. The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
4. Columbia University College of Physicians and Surgeons, New York, NY 10032, USA.
5. Boston University School of Medicine, Boston, MA 02118, USA.
6. Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Matsumoto, Japan.
7. Unidade Corino de Andrade, Department of Neurosciences, Hospital de Santo António, 4099-001 Porto, Portugal.