1. Center for Insoluble Protein Structures (inSPIN), Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
2. Shanghai Key Lab Magnetic Resonance, East China Normal University, Shanghai 200062, Peoples Republic China
3. NMR Supported Structural Biology, Leibniz-Institut für Molekulare Pharmakologie (FMP), Robert Roessle Strasse 10, D-13125 Berlin, Germany
4. Center for Integrated Protein Science Munich (CIPS-M) at Department of Chemistry, Technische Universität München, Lichtenbergstrasse 4, D-85747 Garching, Germany, and Helmholtz-Zentrum München, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany