1. Department of Chemical Biology Helmholtz Centre for Infection Research Inhoffenstrasse 7 38124 Braunschweig Germany
2. Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) Saarland University Campus E8.1 66123 Saarbrücken Germany
3. German Center for Infection Research (DZIF) Site Hannover-Braunschweig 38124 Braunschweig Germany
4. Center of Biomolecular Drug Research (BMWZ) Leibniz University 30159 Hannover Germany