Download MendeleyStructural determinants of the SINE B2 element embedded in the long non-coding RNA activator of translation AS Uchl1.
Podbevsek, P., Fasolo, F., Bon, C., Cimatti, L., Reisser, S., Carninci, P., Bussi, G., Zucchelli, S., Plavec, J., Gustincich, S.(2018) Sci Rep 8: 3189-3189
- PubMed: 29453387
- DOI: https://doi.org/10.1038/s41598-017-14908-6
- Primary Citation of Related Structures:
5LSN - PubMed Abstract:
Pervasive transcription of mammalian genomes leads to a previously underestimated level of complexity in gene regulatory networks. Recently, we have identified a new functional class of natural and synthetic antisense long non-coding RNAs (lncRNA) that increases translation of partially overlapping sense mRNAs. These molecules were named SINEUPs, as they require an embedded inverted SINE B2 element for their UP-regulation of translation. Mouse AS Uchl1 is the representative member of natural SINEUPs. It was originally discovered for its role in increasing translation of Uchl1 mRNA, a gene associated with neurodegenerative diseases. Here we present the secondary structure of the SINE B2 Transposable Element (TE) embedded in AS Uchl1. We find that specific structural regions, containing a short hairpin, are required for the ability of AS Uchl1 RNA to increase translation of its target mRNA. We also provide a high-resolution structure of the relevant hairpin, based on NMR observables. Our results highlight the importance of structural determinants in embedded TEs for their activity as functional domains in lncRNAs.
- Area of Neuroscience, SISSA, Trieste, Italy.
Organizational Affiliation:
