1. Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Tübingen, Germany
2. Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska, USA
3. Institute for Pharmaceutical Microbiology, University of Bonn, Bonn, Germany
4. Cluster of Excellence-Controlling Microbes to Fight Infections, Tübingen, Germany
5. School of Biological Sciences, Southern Illinois University Carbondale, Carbondale, Illinois, USA