1. Section of Cell Biology & Biophysics, Department of Biology, School of Sciences, National & Kapodistrian University of Athens, Panepistimiopolis, 15701 Athens, Greece
2. Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center “Alexander Fleming”, 34 Fleming St., 16672 Athens, Greece
3. Laboratory of Molecular Cell Biology, KU Leuven, Kasteelpark Arenberg 31—Box 2438, 3001 Leuven, Belgium