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- W1996306783 endingPage "9326" @default.
- W1996306783 startingPage "9314" @default.
- W1996306783 abstract "Olfactory receptor (Olfr) genes comprise the largest gene family in mice. Despite their importance in olfaction, how most Olfr mRNAs are regulated remains unexplored. Using RNA-seq analysis coupled with analysis of pre-existing databases, we found that Olfr mRNAs have several atypical features suggesting that post-transcriptional regulation impacts their expression. First, Olfr mRNAs, as a group, have dramatically higher average AU-content and lower predicted secondary structure than do control mRNAs. Second, Olfr mRNAs have a higher density of AU-rich elements (AREs) in their 3'UTR and upstream open reading frames (uORFs) in their 5 UTR than do control mRNAs. Third, Olfr mRNAs have shorter 3' UTR regions and with fewer predicted miRNA-binding sites. All of these novel properties correlated with higher Olfr expression. We also identified striking differences in the post-transcriptional features of the mRNAs from the two major classes of Olfr genes, a finding consistent with their independent evolutionary origin. Together, our results suggest that the Olfr gene family has encountered unusual selective forces in neural cells that have driven them to acquire unique post-transcriptional regulatory features. In support of this possibility, we found that while Olfr mRNAs are degraded by a deadenylation-dependent mechanism, they are largely protected from this decay in neural lineage cells." @default.
- W1996306783 created "2016-06-24" @default.
- W1996306783 creator A5028641640 @default.
- W1996306783 creator A5030405049 @default.
- W1996306783 creator A5042870294 @default.
- W1996306783 creator A5045362081 @default.
- W1996306783 date "2015-04-23" @default.
- W1996306783 modified "2023-10-12" @default.
- W1996306783 title "Identification of novel post-transcriptional features in olfactory receptor family mRNAs" @default.
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