Evidence map›Paper›PMID 19447917›Full record

ArticleRNA (New York, N.Y.)2009

Mutations in the U5 snRNA result in altered splicing of subsets of pre-mRNAs and reduced stability of Prp8.

Christopher J Kershaw, J David Barrass, Jean D Beggs, Raymond T O'Keefe

Open access · bronzeAbstract read
In one paragraph

Article in RNA (New York, N.Y.), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.8field-weighted citation impact, top 27% 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

13 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Review
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  4. A single mNature communications · 2021
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  7. Significant association between rare IPO11-HTR1A variants and attention deficit hyperactivity disorder in Caucasians.American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics · 2015
    Article
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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

4 authors at 2 institutions in 1 country.

Christopher J KershawFaculty of Life Sciences, The University of Manchester, Manchester M139PT, United Kingdom.
J David Barrass
Jean D Beggs
Raymond T O'Keefe
University of Manchester · GBWellcome Centre for Cell Biology · GB

Funding

Biotechnology and Biological Sciences Research Council BB/E000436/1Wellcome Trust 067311Wellcome Trust 071683
6 · The paper itself

Abstract

The U5 snRNA loop 1 aligns the 5' and 3' exons for ligation during the second step of pre-mRNA splicing. U5 is intimately associated with Prp8, which mediates pre-mRNA repositioning within the catalytic core of the spliceosome and interacts directly with U5 loop 1. The genome-wide effect of three U5 loop 1 mutants has been assessed by microarray analysis. These mutants exhibited impaired and improved splicing of subsets of pre-mRNAs compared to wild-type U5. Analysis of pre-mRNAs that accumulate revealed a change in base prevalence at specific positions near the splice sites. Analysis of processed pre-mRNAs exhibiting mRNA accumulation revealed a bias in base prevalence at one position within the 5' exon. While U5 loop 1 can interact with some of these positions the base bias is not directly related to sequence changes in loop 1. All positions that display a bias in base prevalence are at or next to positions known to interact with Prp8. Analysis of Prp8 in the presence of the three U5 loop 1 mutants revealed that the most severe mutant displayed reduced Prp8 stability. Depletion of U5 snRNA in vivo also resulted in reduced Prp8 stability. Our data suggest that certain mutations in U5 loop 1 perturb the stability of Prp8 and may affect interactions of Prp8 with a subset of pre-mRNAs influencing their splicing. Therefore, the integrity of U5 is important for the stability of Prp8 during splicing and provides one possible explanation for why U5 loop 1 and Prp8 are so highly conserved.

Indexed as

Alternative SplicingBase SequenceGenome, FungalMolecular Sequence DataMutationNucleic Acid ConformationRibonucleoprotein, U4-U6 Small NuclearRibonucleoprotein, U5 Small NuclearRNA PrecursorsRNA, Small NuclearSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSpliceosomesPRP8 protein, S cerevisiaeRibonucleoprotein, U4-U6 Small NuclearRibonucleoprotein, U5 Small NuclearRNA PrecursorsRNA, Small NuclearSaccharomyces cerevisiae ProteinsU5 small nuclear RNA

Identifiers

PMID19447917
PMCPMC2704078
OpenAlexW2170212034

What OpenQuestion holds

Textmetadata
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.