Evidence map›Paper›PMID 23686287›Full record

ArticleNature structural & molecular biology2013

A conformational switch in PRP8 mediates metal ion coordination that promotes pre-mRNA exon ligation.

Matthew J Schellenberg, Tao Wu, Dustin B Ritchie, Sebastian Fica, Jonathan P Staley, Karim A Atta, Paul LaPointe, Andrew M MacMillan

Abstract read
In one paragraph

Article in Nature structural & molecular biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–field-weighted citation impact
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

25 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Structural and functional modularity of the U2 snRNP in pre-mRNA splicing.Critical reviews in biochemistry and molecular biology · 2019
    Review
  7. Article
  8. Article
  9. Structural toggle in the RNaseH domain of Prp8 helps balance splicing fidelity and catalytic efficiency.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  10. A close-up look at the spliceosome, at last.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. ChSeq: A database of chameleon sequences.Protein science : a publication of the Protein Society · 2015
    Review
  17. Article
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Matthew J SchellenbergDepartment of Biochemistry, University of Alberta, Edmonton, Alberta, Canada.
Tao Wu
Dustin B Ritchie
Sebastian Fica
Jonathan P Staley
Karim A Atta
Paul LaPointe
Andrew M MacMillan

Funding

The Catalytic Mechanism of Nuclear Premessenger RNA Splicing by the SpliceosomeR01GM088656 · NIGMS · UNIVERSITY OF CHICAGO · PI PICCIRILLI, JOSEPH ANTHONY, STALEY, JONATHAN P · 2010 to 2017
$4.2M
CIHRNIGMS NIH HHS R01 GM088656NIGMS NIH HHS R01GM088656
6 · The paper itself

Abstract

Splicing of pre-mRNAs in eukaryotes is catalyzed by the spliceosome, a large RNA-protein metalloenzyme. The catalytic center of the spliceosome involves a structure comprising the U2 and U6 snRNAs and includes a metal bound by U6 snRNA. The precise architecture of the splicesome active site, however, and the question of whether it includes protein components, remains unresolved. A wealth of evidence places the protein PRP8 at the heart of the spliceosome through assembly and catalysis. Here we provide evidence that the RNase H domain of PRP8 undergoes a conformational switch between the two steps of splicing, rationalizing yeast prp8 alleles that promote either the first or second step. We also show that this switch unmasks a metal-binding site involved in the second step. Together, these data establish that PRP8 is a metalloprotein that promotes exon ligation within the spliceosome.

Indexed as

Crystallography, X-RayIonsLigationMetalsModels, MolecularProtein ConformationRibonuclease HRibonucleoprotein, U4-U6 Small NuclearRibonucleoprotein, U5 Small NuclearRNA PrecursorsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsIonsMetalsPRP8 protein, S cerevisiaeRibonuclease HRibonucleoprotein, U4-U6 Small NuclearRibonucleoprotein, U5 Small NuclearRNA PrecursorsSaccharomyces cerevisiae Proteins

Identifiers

PMID23686287
PMCPMC3703396

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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.