1. Division of Biology; California Institute of Technology; Pasadena; CA USA
2. Max Planck Institute for Brain Research; Frankfurt am Main; Germany
3. Leibniz Institute for Neurobiology; Magdeburg Germany
4. Proteome Exploration Laboratory; California Institute of Technology; Pasadena CA USA
5. Division of Chemistry and Chemical Engineering; California Institute of Technology; Pasadena CA USA
6. Institute for Pharmacology and Toxicology; Otto-von-Guericke University; Magdeburg Germany