1. Research Unit Biomolecular Chemistry Leibniz Institute for Natural Product Research and Infection Biology Hans Knöll Institute Adolf-Reichwein-Straße 23 07745 Jena Germany
2. Center for Protein Assemblies Technical University of Munich Ernst-Otto-Fischer-Straße 8 85747 Garching Germany
3. Faculty of Biological Sciences Friedrich Schiller University Jena 07743 Jena Germany