1. Institute for Pharmaceutical Biology University of Bonn Nussallee 6 53115 Bonn Germany
2. Institute for Pharmaceutical Microbiology University of Bonn University Clinic Bonn Meckenheimer Allee 168 53115 Bonn Germany
3. DZIF German Center for Infectious Research, partner site Bonn-Cologne Germany
4. Institute for Medical Microbiology, Immunology and Parasitology University Hospital Bonn Venusberg Campus 1 53127 Bonn Germany
5. NovoBiotic Pharmaceuticals Cambridge MA 02138 USA
6. Department of Biology Antimicrobial Discovery Center Northeastern University Boston MA 02115 USA