1. Center for Molecular Biology of Heidelberg University (ZMBH) and German Cancer Research Center (DKFZ), DKFZ-ZMBH Alliance, Heidelberg, Germany
2. Department of Molecular Physiology and Cell Biology, Leibniz-Institute for Molecular Pharmacology (FMP) im Forschungsverbund Berlin e.V, Berlin, Germany
3. Department of Biology, Northeastern Illinois University, Chicago, IL, USA