Evidence map›Paper›PMID 11130730›Full record

ArticleNature2000

Metal-ion coordination by U6 small nuclear RNA contributes to catalysis in the spliceosome.

S L Yean, G Wuenschell, J Termini, R J Lin

Abstract read
In one paragraph

Article in Nature, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 101 papers.

0numbers the graph read from it
0cells of the map it votes in
101citing papers in PubMed
5.7field-weighted citation impact, top 3% 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

101 citing papers in PubMed, 250 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. A single mNature communications · 2021
    Article
  7. Spliceosomal snRNA Epitranscriptomics.Frontiers in genetics · 2021
    Review
  8. Review
  9. Article
  10. Article
  11. Structural and functional modularity of the U2 snRNP in pre-mRNA splicing.Critical reviews in biochemistry and molecular biology · 2019
    Review
  12. RNAs in the spliceosome: Insight from cryoEM structures.Wiley interdisciplinary reviews. RNA · 2019
    Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article

41 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

S L YeanDepartment of Molecular Biology, Beckman Research Institute of the City of Hope, Duarte, California 91010-3011, USA.
G Wuenschell
J Termini
R J Lin
Beckman Research InstituteCity of Hope · US

Funding

FUNCTIONAL SPLICEOSOMES AND EXTRINSIC SPLICING FACTORSR01GM040639 · NIGMS · UNIVERSITY OF TEXAS AUSTIN · PI LIN, REN-JANG · 1988 to 2006
$2.0M
NIGMS NIH HHS R01 GM040639
6 · The paper itself

Abstract

Introns are removed from nuclear messenger RNA precursors through two sequential phospho-transesterification reactions in a dynamic RNA-protein complex called the spliceosome. But whether splicing is catalysed by small nuclear RNAs in the spliceosome is unresolved. As the spliceosome is a metalloenzyme, it is important to determine whether snRNAs coordinate catalytic metals. Here we show that yeast U6 snRNA coordinates a metal ion that is required for the catalytic activity of the spliceosome. With Mg2+, U6 snRNA with a sulphur substitution for the pro-Rp or pro-Sp non-bridging phosphoryl oxygen of nucleotide U80 reconstitutes a fully assembled yet catalytically inactive spliceosome. Adding a thiophilic ion such as Mn2+ allows the first transesterification reaction to occur in the U6/sU80(Sp)- but not the U6/sU80(Rp)-reconstituted spliceosome. Mg2+ competitively inhibits the Mn2+-rescued reaction, indicating that the metal-binding site at U6/U80 exists in the wild-type spliceosome and that the site changes its metal requirement for activity in the Sp spliceosome. Thus, U6 snRNA contributes to pre-messenger RNA splicing through metal-ion coordination, which is consistent with RNA catalysis by the spliceosome.

Indexed as

RNA SplicingCatalysisEstersMagnesiumManganeseRNA, FungalRNA, MessengerRNA PrecursorsRNA, Small NuclearSpliceosomesThionucleotidesYeastsEstersMagnesiumManganeseRNA, FungalRNA, MessengerRNA PrecursorsRNA, Small NuclearThionucleotidesU6 small nuclear RNA

Identifiers

PMID11130730
PMCPMC4377090
OpenAlexW1574133493

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.