1 Interfaculty Institute for Microbiology and Infection Medicine, Organismic Interactions Department, Cluster of Excellence 'Controlling Microbes to Fight Infections', Tübingen University, Tübingen, Germany.
2 Interfaculty Institute for Microbiology and Infection Medicine, Organismic Interactions Department, Cluster of Excellence 'Controlling Microbes to Fight Infections', Tübingen University, Tübingen, Germany. khaled.selim@uni-tuebingen.de.
3 Max Planck Institute for Biology, Protein Evolution Department, Tübingen, Germany. khaled.selim@uni-tuebingen.de.