1. Department of Cell and Molecular Biology, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoell Institute, Beutenbergstrasse 11a, D-07745 Jena, Germany
2. Institute of Virology and Antiviral Therapy, Medical Center, Friedrich Schiller University, Hans-Knoell-Strasse 2, D-07745 Jena, Germany
3. Max Planck Institute of Biochemistry, Am Klopferspitz 18, D-82152 Martinsried, Germany
4. Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoell Institute Beutenbergstrasse 11a, D-07745 Jena, Germany