1. Helmholtz Center for Infection Research, Chemical Microbiology, Inhoffenstrasse 7, 38124 Braunschweig, Germany
2. Institute of Microbiology, Russian Academy of Sciences, Prospect 60-Letiya Octyabrya 7, korp. 2, Moscow 117811, Russia
3. University of British Columbia, Dept of Microbiology and Immunology, Vancouver, BC, Canada
4. BCCM/LMG Bacteria Collection and Laboratory of Microbiology, Ghent University, Ghent, Belgium