作者: Elfar Torarinsson , Milena Sawera , Jakob H Havgaard , Merete Fredholm , Jan Gorodkin
DOI: 10.1101/GR.5226606
关键词:
摘要: Human and mouse genome sequences contain roughly 100,000 regions that are unalignable in primary sequence neighbor corresponding alignable between both organisms. These pairs generally assumed to be nonconserved, although the level of structural conservation these has never been investigated. Owing limitations computational methods, comparative genomics lacking ability compare such nonconserved for conserved RNA elements. We have investigated presence elements by conducting a local alignment, using FOLDALIGN, on subset estimate 1800 common structures. Comparing our results with recent mapping transcribed fragments (transfrags) human, we find high-scoring candidates twice as likely found overlapped transfrags than not transfrags. To verify coexpression predicted human mouse, conducted expression studies RT-PCR Northern blotting candidates, which overlap chromosome 20. confirmed 32 out 36 whereas blots four 12 candidates. Furthermore, many indicate differential different tissues. Hence, findings suggest there expressed non-coding sequence.