[1] Univ Leipzig, Dept Comp Sci, Interdisciplinary Ctr Bioinformat & Bioinformat G, D-04107 Leipzig, Germany
[2] Univ Leipzig, LIFE, Leipzig Res Ctr Civilizat Dis, D-04107 Leipzig, Germany
[3] Max Planck Inst Math Sci, D-04103 Leipzig, Germany
[4] Fraunhofer Inst Cell Therapy & Immunol, RNom Grp, D-04103 Leipzig, Germany
[5] Univ Vienna, Dept Theoret Chem, A-1090 Vienna, Austria
[6] Univ Copenhagen, Ctr Noncoding RNA Technol & Hlth, DK-1870 Frederiksberg C, Denmark
[7] Santa Fe Inst, Santa Fe, NM 87501 USA