1. Institute for Molecular and Cellular Anatomy, University of Regensburg, 93053 Regensburg, Germany
2. Institute of Cellular and Molecular Physiology, Friedrich-Alexander University of Erlangen-Nürnberg, 91054 Erlangen, Germany
3. Department of Biophysics, University of Regensburg, 93053 Regensburg, Germany
4. Faculty of Biology and Preclinical Medicine, University of Regensburg, 93053 Regensburg, Germany
5. Departments of Medicine and Genetics, Yale University, New Haven, CT 06520, USA
6. Institute of Experimental Hematology, Technical University of Munich, 81675 Munich, Germany
7. Department of Physiology, University of Regensburg, 93053 Regensburg, Germany