1. Max Delbrück Center for Molecular Medicine in the Helmholtz Association, 13125 Berlin, Germany
2. Institute of Pharmacology and Toxicology, University of Würzburg, 97078 Würzburg, Germany
3. Section of Receptor Biology & Signalling, Department of Physiology & Pharmacology, Karolinska Institute, S17177 Stockholm, Sweden
4. Group Protein X-Ray Crystallography and Signal Transduction, Institute of Medical Physics and Biophysics, Charité – Universitätsmedizin Berlin, 10117 Berlin, Germany
5. Deutsches Zentrum für Herz-Kreislauf-Forschung, 10785 Berlin, Germany
6. ISAR Bioscience Institute, 82152 Planegg/Munich, Germany
7. School of Life Sciences, Queen’s Medical Centre, University of Nottingham, NG7 2UH Nottingham, United Kingdom