Evidence map›Paper›PMID 17643111›Full record

ArticleNature chemical biology2007

Spliceostatin A targets SF3b and inhibits both splicing and nuclear retention of pre-mRNA.

Daisuke Kaida, Hajime Motoyoshi, Etsu Tashiro, Takayuki Nojima, Masatoshi Hagiwara, Ken Ishigami, Hidenori Watanabe, Takeshi Kitahara, Tatsuhiko Yoshida, Hidenori Nakajima and 3 more

Abstract read
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In one paragraph

Article in Nature chemical biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 385 papers.

0numbers the graph read from it
0cells of the map it votes in
385citing papers in PubMed
8.2field-weighted citation impact, top 2% 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

385 citing papers in PubMed, 651 citations in OpenAlex.

  1. The cellular landscape of druggable RNA-binding proteins.Nature reviews. Drug discovery · 2026
    Review
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  9. Spirocyclic β-lactone secondary metabolites modulate spliceosome function.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
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  12. Regulation of RNA-binding proteins by small biomolecules.Nature reviews. Molecular cell biology · 2026
    Review
  13. Article
  14. Review
  15. RNA Splicing as a Therapeutic Target in Cancer.Annual review of pharmacology and toxicology · 2026
    Review
  16. Review
  17. Article
  18. Review
  19. Article
  20. Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 5 institutions in 1 country.

Daisuke KaidaChemical Genetics Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
Hajime Motoyoshi
Etsu Tashiro
Takayuki Nojima
Masatoshi Hagiwara
Ken Ishigami
Hidenori Watanabe
Takeshi Kitahara
Tatsuhiko Yoshida
Hidenori Nakajima
Tokio Tani
Sueharu Horinouchi
Minoru Yoshida
The University of Tokyo · JPRIKEN · JPTokyo Medical and Dental University · JPAstellas Pharma (Japan) · JPKumamoto University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The removal of intervening sequences from transcripts is catalyzed by the spliceosome, a multicomponent complex that assembles on the newly synthesized pre-mRNA. Pre-mRNA translation in the cytoplasm leads to the generation of aberrant proteins that are potentially harmful. Therefore, tight control to prevent undesired pre-mRNA export from the nucleus and its subsequent translation is an essential requirement for reliable gene expression. Here, we show that the natural product FR901464 (1) and its methylated derivative, spliceostatin A (2), inhibit in vitro splicing and promote pre-mRNA accumulation by binding to SF3b, a subcomplex of the U2 small nuclear ribonucleoprotein in the spliceosome. Importantly, treatment of cells with these compounds resulted in leakage of pre-mRNA to the cytoplasm, where it was translated. Knockdown of SF3b by small interfering RNA induced phenotypes similar to those seen with spliceostatin A treatment. Thus, the inhibition of pre-mRNA splicing during early steps involving SF3b allows unspliced mRNA leakage and translation.

Indexed as

Active Transport, Cell NucleusAntineoplastic AgentsCell Line, TumorHumansPhosphoproteinsPyransRibonucleoprotein, U2 Small NuclearRNA-Binding ProteinsRNA PrecursorsRNA, Small InterferingRNA SplicingRNA Splicing FactorsSpiro CompoundsAntineoplastic AgentsFR 901464PhosphoproteinsPyransRibonucleoprotein, U2 Small NuclearRNA-Binding ProteinsRNA PrecursorsRNA, Small InterferingRNA Splicing FactorsSF3B1 protein, humanSF3B2 protein, humanSF3B3 protein, humanSF3B4 protein, humanSpiro Compounds

Identifiers

PMID17643111
OpenAlexW2155742225

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.