Prof. Dr. Nikolaus Rajewsky,Berlin Inst. for Medical Systems Biology, MaxDelbrückCenter for Molecular Medicine,Berlin-Buch,Germanyrajewsky@mdc-berlin.deProf. Dr. Stefan Jurga, Adam Mickiewicz University, Nanobiomedical Center,Poznań,Polandstjurga@amu.edu.plProf. Dr. Jan Barciszewski, Polish Academy of Sciences,Institute of Bioorganic Chemistry,Poznań,Polandjan.barciszewski@ibch.poznan.pl