1. University of Bonn; LIMES Institute; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
2. University of Leipzig; Institute for Biochemistry; Brüderstrasse 34 04103 Leipzig Germany
3. University of Konstanz; Chemistry Department; Universitaetsstrasse 10 78464 Konstanz Germany
4. University of Düsseldorf; Institute for Pharmaceutical Biology; Universitätsstrasse 1 Bld. 26.23, Room 00.44 40225 Düsseldorf Germany
5. University of Tübingen; Interfaculty Institute for Microbiology and Infection Medicine; Department of Microbiology & Biotechnology, Auf der Morgenstelle 28; 72076 Tübingen Germany
6. University of Tübingen; Interfaculty Institute for Microbiology and Infection Medicine; Department of Microbial Bioactive Compounds, Auf der Morgenstelle 28; 72076 Tübingen Germany
7. University of Bonn; Institute of Medical Microbiology, Immunology and Parasitology; Sigmund-Freud-Strasse 25 53127 Bonn Germany