1. Department of Cell Morphology and Molecular Neurobiology; Faculty of Biology and Biotechnology, Ruhr-University; Bochum D-44780 Germany
2. International Graduate School of Neuroscience; Ruhr-University Bochum; Bochum D-44780 Germany
3. Institute for Pathobiochemistry; University Medical Center of the Johannes Gutenberg-University Mainz; Mainz D-55099 Germany
4. Department of Chemistry and Biochemistry; California State University Long Beach; Long Beach California 90840
5. Institute of Anatomy and Cell Biology; University Wuerzburg; Koellikerstraße 6 Wuerzburg D-97070 Germany