1. Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 9 G. Bonchev St., Sofia 1113, Bulgaria, Institute of Zoology, University of Mainz, Müllerweg 6, Mainz 55099, Germany, Department of Immunology, Institute for Cell Biology, University of Tübingen, Auf der Morgenstelle 15, D-72076 Tübingen, Germany, Laboratory of Protein Biochemistry and Biomolecular Engineering, Ghent University, KL Ledeganckstraat 35, 9000 Ghent, Belgium, The Stephan Angeloff Institute of...