1. Karolinska Institutet, Department of Cell and Molecular Biology, von Eulers väg 3, 171 77 Stockholm, Sweden.
2. Ludwig Institute for Cancer Research, Nobels väg 3, Karolinska Institutet, 71 77 Stockholm, Sweden.
3. Institut de Biologie de l'Ecole Normale Supérieure (IBENS), CNRS UMR8197, INSERM U1024, 75005, Paris, France.
4. UMDNJ, Neuroscience and Cell Biology, CABM, 679 Hoes Lane, Piscataway, NJ 08854, USA.