Affiliation: | (1) Institute of Experimental Medicine, Department of Cell Ultrastructure and Molecular Biology, Academy of Sciences of the Czech Republic, Vídeňská 1083, 142 20 Prague 4, Czech Republic;(2) Institute of Molecular Genetics, Department of Biology of the Cell Nucleus, Academy of Sciences of the Czech Republic, Vídeňská 1083, 142 20 Prague 4, Czech Republic;(3) Department of Histology and Embryology, 3rd Faculty of Medicine, Charles University, Ruská 87, 100 00 Prague 10, Czech Republic |