ArticleRNA biology2018
Truncated forms of U2 snRNA (U2-tfs) are shunted toward a novel uridylylation pathway that differs from the degradation pathway for U1-tfs.
Article in RNA biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed, 12 citations in OpenAlex.
- DIS3L2-mediated RNA surveillance and extracellular vesicle packaging prevent innate immune activation by aberrant cellular RNAs.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Article
- The Uridylyl Transferase TUT7-Mediated Accumulation of Exosomal miR-1246 Reprograms TAMs to Support CRC Progression.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- The SMN complex drives structural changes in human snRNAs to enable snRNP assembly.Nature communications · 2023Article
- Review
- The integrity of the U12 snRNA 3' stem-loop is necessary for its overall stability.Nucleic acids research · 2021Article
- DIS3L2 and LSm proteins are involved in the surveillance of Sm ring-deficient snRNAs.Nucleic acids research · 2020Article
- The biological function and clinical significance of SF3B1 mutations in cancer.Biomarker research · 2020Review
- The origin of exosomal miR-1246 in human cancer cells.RNA biology · 2019Article
- Unraveling 3'-end RNA uridylation at nucleotide resolution.Methods (San Diego, Calif.) · 2019Review
- SAMMSON fosters cancer cell fitness by concertedly enhancing mitochondrial and cytosolic translation.Nature structural & molecular biology · 2018Article
- 3' RNA Uridylation in Epitranscriptomics, Gene Regulation, and Disease.Frontiers in molecular biosciences · 2018Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
During the biogenesis of U1 small nuclear ribonucleoprotein, a small population of U1 snRNA molecules acquires an extra methylation at the first transcribed nucleotide and a nucleolytic cleavage to remove the 3' structured region including the Sm protein-binding site and stem-loop 4. These modifications occur before hypermethylation of the monomethylated 5' cap, whereby producing truncated forms of U1 snRNA (U1-tfs) that are diverted from the normal pathway to a processing body-associated degradation pathway. Here, we demonstrate that a small population of U2 snRNA molecules receives post-transcriptional modifications similar to those of U1 to yield U2-tfs. Like U1-tfs, U2-tfs molecules were produced from transcripts of the U2 snRNA gene having all cis-elements or lacking the 3' box. Unlike U1-tfs, however, a portion of U2-tfs received additional uridylylation of up to 5 nucleotides in length at position 87 (designated as U2-tfs-polyU) and formed an Sm protein-binding site-like structure that was stabilized by the small nuclear ribonucleoprotein SmB/B' probably as a part of heptameric Sm core complex that associates to the RNA. Both U2-tfs and U2-tfs-polyU were degraded by a nuclease distinct from the canonical Dis3L2 by a process catalyzed by terminal uridylyltransferase 7. Collectively, our data suggest that U2 snRNA biogenesis is regulated, at least in part, by a novel degradation pathway to ensure that defective U2 molecules are not incorporated into the spliceosome.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.