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RUSSIAN ACADEMY OF SCIENCES SIBERIAN BRANCH INSTITUTE OF CYTOLOGY AND GENETICS LABORATORY OF THEORETICAL GENETICS PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON BIOINFORMATICS OF GENOME REGULATION AND STRUCTURE

Resume Motivation: Despite the growing number of known sequences coding for proteins or even completely sequenced genomes, the fraction of Open Reading Frames (ORFs) without known function or homology to other known coding sequences (so-called ORFans) is not diminishing. This phenomenon is known as Mystery of ORFans. There have been many attempts to explain this paradox but only one is in fact reasonable: a large fraction of ORFans do not code for proteins. Therefore, another problem arises: how these long, noncoding ORFs have been generated.