Affiliation: | 1. Institute of Molecular Biology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. Bl.21, 1113 Sofia, Bulgaria;2. Max Planck Institute for Molecular Cell Biology and Genetics, 108 Pfotenhauerstr., 01307 Dresden, Germany;3. Faculty of Mathematics and Informatics, Sofia University, St. Kliment Ohridski, 5 James Bourchier Blvd., 1164 Sofia, Bulgaria;4. Department of Mathematics, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104, USA;5. Medical Systems Biology, UCC, Medical Faculty Carl Gustav Carus, TU Dresden, Fetscherstr. 74, 01307 Dresden, Germany |