1. The Ca2+ Signalling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
2. Institute for Neuroimmunology and Multiple Sclerosis Research, University Medical Centre Göttingen, 37075 Göttingen, Germany.
3. Department of Computational Neuroscience, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
4. Mass Spectrometric Proteomics Group, Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
5. Microscopy Imaging Facility (UMIF), University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
6. Organic Chemistry, University of Hamburg, 20146 Hamburg, Germany.
7. Department of Pharmacology, University of Minnesota Medical School, Minneapolis, MN 55455-0217, USA.