1. Department of General Microbiology, GZMB, Georg-August-University Göttingen, Göttingen, Germany
2. Matthias-Schleiden-Institut, AG Bakteriengenetik, Friedrich-Schiller-University Jena, Jena, Germany
3. Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA
4. Department of Genomic and Applied Microbiology, GZMB, Georg-August-University Göttingen, Göttingen, Germany