1. Institute of Structural Biology, Helmholtz Zentrum München, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany
2. Biomolecular NMR, Bayerisches NMR Zentrum and Center for Integrated Protein Science Munich at Chemistry Department, Technical University of Munich, Lichtenbergstrasse 4, 85747 Garching, Germany
3. Institute of Medicinal Chemistry, Helmholtz Zentrum München, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany
4. Institute of Organic Chemistry, Center of Biomolecular Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1b, 30167 Hannover, Germany
5. Institute of Biochemistry and Pathobiochemistry, Department of Systems Biochemistry, Faculty of Medicine, Ruhr-University Bochum, 44780 Bochum, Germany
6. Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, Swiss Federal Institute of Technology (ETH), Vladimir-Prelog-Weg 4, 8093 Zürich, Switzerland
7. Department of Drug Technology and Pharmaceutical Biotechnology, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland