Department of Cell and Molecular Biology, Computational and Systems Biology, Uppsala University, Uppsala, Sweden.|Laboratory of Bioinformatics, Neurobiology Center, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland.|Laboratory of Molecular Neurobiology, Neurobiology Center, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland.|Department of Medical Biochemistry and Microbiology/BILS, Genomics, Uppsala University, Uppsala, Sweden.|Department of Cell and Molecular Biology, Computational and Systems Biology, Uppsala University, Uppsala, Sweden. jan.komorowski@icm.uu.se.