ArticleNucleic acids research2025
Internal ribosome entry sites enhance translation in trans in antisense non-coding SINEUP and circular RNAs.
Article in Nucleic acids research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Reading the SINEs - functionality in noncoding RNA 'cheap genes'.RNA biology · 2026Review
- Noncoding RNA encoded peptides in tumors from discovery to mechanism and clinical translation.iScience · 2026Review
- Long non-coding SINEUP RNA enhancing BDNF translation prevents dendritic atrophy following an Aβ-peptide challenge.Cellular and molecular life sciences : CMLS · 2026Article
- Review
- Integrating rna structure and protein interactions to uncover the mechanisms of viral and cellular ires function.Biology direct · 2025Article
Corrections and comments
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Authors and funding
29 authors.
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Abstract
Sequences in the 5'-untranslated regions of cellular and viral mRNAs can function as internal ribosome entry sites (IRESs), driving cis-acting translation of the downstream protein-coding open reading frame. Here we demonstrate that RNA sequences with either newly identified or well-characterized IRES activity can also induce trans-acting translation of an independent mRNA species through an antisense sequence. SINEUPs are antisense long non-coding RNAs that enhance the translation of overlapping sense mRNAs in trans by employing two critical domains: the invSINEB2 sequence, which up-regulates translation (effector domain), and an antisense region providing target specificity (binding domain). First, we show that the invSINEB2 from the natural SINEUP AS Uchl1 RNA acts as an IRES when functioning in cis. Next, we establish that known viral and cellular sequences with IRES activity can operate in trans as an effector domain in synthetic SINEUPs. To identify natural IRES-containing non-coding RNAs with transactivity, we found that the non-coding hsa_circ_0 085 533 (circMyc), transcribed from the c-myc locus, enhances protein expression of PX Domain Containing Serine/Threonine Kinase Like (PXK) by promoting mRNA association with polysomes through antisense sequences. These results suggest that SINEUPs and some circular RNAs are trans-acting IRESs, expanding the repertoire of molecular mechanisms to regulate translation.
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Registered trials
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