1. Department of Chemistry University of Konstanz Constance Germany
2. Konstanz Research School Chemical Biology KoRS‐CB University of Konstanz Constance Germany
3. Institute of Physics, Biophysics Martin‐Luther‐University Halle‐Wittenberg Halle (Saale) Germany
4. Centre for Structural Systems Biology (CSSB) Hamburg Germany
5. Molecular Biology Laboratory (EMBL) Hamburg Unit c/o Deutsches Elektronen Synchrotron (DESY) Hamburg Germany