Evidence map›Paper›PMID 18299285›Full record

ArticleNucleic acids research2008

Requirements for gene silencing mediated by U1 snRNA binding to a target sequence.

Xabi Abad, Maria Vera, Stephen P Jung, Evelyn Oswald, Inés Romero, Vaibhav Amin, Puri Fortes, Samuel I Gunderson

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.2field-weighted citation impact, top 12% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
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  10. The reciprocal regulation between splicing and 3'-end processing.Wiley interdisciplinary reviews. RNA · 2016
    Review
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  16. Review
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  18. Review
  19. Dual suppression of hemangiogenesis and lymphangiogenesis by splice-shifting morpholinos targeting vascular endothelial growth factor receptor 2 (KDR).FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2013
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 2 countries.

Xabi AbadDivision of Hepatology and Gene Therapy, CIMA/UNAV. Pio XII, 55, 31008 Pamplona, Spain.
Maria Vera
Stephen P Jung
Evelyn Oswald
Inés Romero
Vaibhav Amin
Puri Fortes
Samuel I Gunderson
Rutgers, The State University of New Jersey · USChartered Institute of Management Accountants · GB

Funding

Regulation of Polyadenylation: the U1A/U1snRNP ParadigmR01GM057286 · NIGMS · RUTGERS THE ST UNIV OF NJ NEW BRUNSWICK · PI GUNDERSON, SAMUEL I · 1999 to 2007
$2.9M
NIGMS NIH HHS R01 GM057286
6 · The paper itself

Abstract

U1 interference (U1i) is a novel method to block gene expression. U1i requires expression of a 5'-end-mutated U1 snRNA designed to base pair to the 3'-terminal exon of the target gene's pre-mRNA that leads to inhibition of polyadenylation. Here, we show U1i is robust (> or =95%) and a 10-nt target length is sufficient for good silencing. Surprisingly, longer U1 snRNAs, which could increase annealing to the target, fail to improve silencing. Extensive mutagenesis of the 10-bp U1 snRNA:target duplex shows that any single mismatch different from GU at positions 3-8, destroys silencing. However, mismatches within the other positions give partial silencing, suggesting that off-target inhibition could occur. The specificity of U1i may be enhanced, however, by the fact that silencing is impaired by RNA secondary structure or by splicing factors binding nearby, the latter mediated by Arginine-Serine (RS) domains. U1i inhibition can be reconstituted in vivo by tethering of RS domains of U1-70K and U2AF65. These results help to: (i) define good target sites for U1i; (ii) identify and understand natural cellular examples of U1i; (iii) clarify the contribution of hydrogen bonding to U1i and to U1 snRNP binding to 5' splice sites and (iv) understand the mechanism of U1i.

Indexed as

RNA InterferenceBase Pair MismatchBinding SitesHeLa CellsHumansHydrogen BondingNuclear ProteinsNucleic Acid ConformationPoint MutationProtein Structure, TertiaryRegulatory Sequences, Ribonucleic AcidRNA-Binding ProteinsRNA, MessengerRNA PrecursorsRNA, Small NuclearRNA SplicingNuclear ProteinsRegulatory Sequences, Ribonucleic AcidRNA-Binding ProteinsRNA, MessengerRNA PrecursorsRNA, Small NuclearSerine-Arginine Splicing FactorsU1 small nuclear RNA

Identifiers

PMID18299285
PMCPMC2367729
OpenAlexW2153074755

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.