1. Institute
of Pharmacy, Department of Pharmaceutical Biology, Ernst-Moritz-Arndt-University, Friedrich-Ludwig-Jahn-Straße 17, D-17489 Greifswald, Germany
2. Helmholtz
Centre for Infection Research, Inhoffenstraße 7, D-38214 Braunschweig, Germany
3. Department
of Chemistry and Centre for Pharmacy, University of Bergen, Allegt 41, N-5007 Bergen, Norway
4. Friedrich
Loeffler Institute of Medical Microbiology, University Medicine Greifswald, Martin-Luther-Str. 6, D-17475 Greifswald, Germany
5. Institute
of Pharmacy, Department of Pharmaceutical Biotechnology, Ernst-Moritz-Arndt-University, Felix-Hausdorff-Straße 3, D-17489 Greifswald, Germany