1. Max Planck Institute for Infection Biology, Department of Cellular Microbiology, Berlin, Germany
2. University of Dundee, School of Life Sciences, Division of Cell Signalling and Immunology, Dundee, United Kingdom
3. Institut für Biologie, Humboldt Universität zu Berlin, Berlin, Germany
4. Max Planck Institute for Molecular Genetics, Berlin, Germany
5. Department of Cell Biology, Albert Einstein College of Medicine, Bronx, United States