1. Department of Molecular Cell Biology, Center for Medical Biotechnology, University of Duisburg-Essen, Essen, Germany
2. Department of Systemic Cell Biology, Max Planck Institute of Molecular Physiology and Fakultät für Chemie und Chemische Biologie, TU Dortmund University, Dortmund, Germany
3. Institute of Complex Systems, Forschungszentrum Jülich, Jülich, Germany