1. Department for NMR-Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany.
2. Structural Elucidation Group, Analytic Enabling Technologies, Merck & Co., 2015 Galloping Hill Road, Kenilworth, NJ 07033, USA.
3. Max Planck Institute of Neurobiology, Martinsried, Germany.