1. Department of Chemistry Faculty of Sciences University of Hamburg Martin-Luther-King-Platz 6 20146 Hamburg Germany
2. CSSB Centre for Structural Systems Biology Notkestraße 85, Building 15 22607 Hamburg Germany
3. Institute of Virology Hannover Medical School (MHH) 30625 Hannover Germany
4. Leibniz Institute of Virology (LIV) 20251 Hamburg Germany
5. Cluster of Excellence RESIST (EXC 2155) Hannover Medical School 30625 Hannover Germany