National Collaboration Biology Centre of the Czech Academy of Sciences, Institute of Soil Biology and Biogeochemistry, České Budějovice, Czech Republic Institute of Microbiology of the Czech Academy of Sciences, Laboratory of Microbial Genetics and Gene Expression, Prague, Czech Republic Charles University, the Second Faculty of Medicine and University Hospital Motol, Department of Medical Microbiology, Prague, Czech Republic Institute of Biotechnology of the Czech Academy of Sciences, Laboratory of Biomolecular Recognition, Vestec, Czech Republic Institute of Microbiology of the Czech Academy of Sciences, Laboratory of Cell Signalling, Prague, Czech Republic Charles University, Faculty of Science, Laboratory for Evolutionary and Ecological Immunology, Prague, Czech Republic