1. Institute of Complex Systems: Strukturbiochemie, Forschungszentrum Juelich, Wilhelm-Johnen-Straße, 52428 Juelich, Germany
2. Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, The Netherlands
3. Helmholtz Centre for Infection Research, Inhoffenstraße 7, 38124 Braunschweig, Germany
4. State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, People’s Republic of China