1. Department of Chemistry Konstanz Research School Chemical Biology (KoRS-CB) University of Konstanz Universitätsstraße 10 78457 Konstanz Germany
2. Institute of Biochemistry and Signal Transduction University Medical Center Hamburg-Eppendorf (UKE) Martinistraße 52 20246 Hamburg Germany
3. Center for Structural Systems Biology (CSSB) University Medical Center Hamburg-Eppendorf Martinistraße 52 20246 Hamburg Germany