1. Max Planck Institute of Molecular Physiology Department of Chemical Biology Otto-Hahn-Strasse 11 44227 Dortmund Germany
2. Technical University Dortmund Faculty of Chemistry, Chemical Biology Otto-Hahn-Strasse 6 44221 Dortmund Germany
3. Umeå University Department of Chemistry 90187 Umeå Sweden
4. Umeå University Umeå Center for Microbial Research 90187 Umeå Sweden
5. Max Planck Institute of Molecular Physiology Crystallography and Biophysics Unit Otto-Hahn-Strasse 11 44227 Dortmund Germany
6. Technical University Dortmund Faculty of Chemistry, Inorganic Chemistry Otto-Hahn-Strasse 6 44221 Dortmund Germany
7. Compound Management and Screening Center (COMAS) Otto-Hahn-Strasse 11 44221 Dortmund Germany