1. The Stephan Angeloff Institute of Microbiology, BAS, Atelier Pasteur, Sofia, Bulgaria
2. Helmholtz-Zentrum Dresden-Rossendorf, Helmholtz Institute Freiberg for Resource Technology, Dresden, Germany
3. CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572, ISIS, University of Strasbourg, Strasbourg, France
4. Chemistry and Biochemistry of Bioactive Molecules, University of Strasbourg/CNRS, UMR 7177, Strasbourg Institute of Chemistry, Strasbourg, France