Evidence map›Paper›PMID 9351834›Full record

ArticleThe EMBO journal1997

The asymmetric distribution of the constituents of the Ran system is essential for transport into and out of the nucleus.

E Izaurralde, U Kutay, C von Kobbe, I W Mattaj, D Görlich

Abstract read
In one paragraph

Article in The EMBO journal, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 272 papers.

0numbers the graph read from it
0cells of the map it votes in
272citing papers in PubMed
22.8field-weighted citation impact, top 1% 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

272 citing papers in PubMed, 637 citations in OpenAlex.

  1. Trial
  2. HIV-1 capsid interactions with Nuclear Pore Complex components support nuclear entry via affinity gradient.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Importin-9 recognizes the winged-helix fold of ETS transcription factors to mediate nuclear import.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  5. A Deep-Learning Atlas of XPO1-Mediated Nuclear Export at Proteome Scale.bioRxiv : the preprint server for biology · 2026
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Integrative mapping reveals molecular features underlying the mechanism of nucleocytoplasmic transport.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  12. Article
  13. Article
  14. Review
  15. Multiomic Characterization ofJCO oncology advances · 2025
    Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Evolutionary trajectory for nuclear functions of ciliary transport complex proteins.Microbiology and molecular biology reviews : MMBR · 2024
    Review

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

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

5 authors at 1 institution in 1 country.

E IzaurraldeUniversity of Geneva, Department of Molecular Biology, Switzerland.
U Kutay
C von Kobbe
I W Mattaj
D Görlich
University of Geneva · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The GTPase Ran is essential for nuclear import of proteins with a classical nuclear localization signal (NLS). Ran's nucleotide-bound state is determined by the chromatin-bound exchange factor RCC1 generating RanGTP in the nucleus and the cytoplasmic GTPase activating protein RanGAP1 depleting RanGTP from the cytoplasm. This predicts a steep RanGTP concentration gradient across the nuclear envelope. RanGTP binding to importin-beta has previously been shown to release importin-alpha from -beta during NLS import. We show that RanGTP also induces release of the M9 signal from the second identified import receptor, transportin. The role of RanGTP distribution is further studied using three methods to collapse the RanGTP gradient. Nuclear injection of either RanGAP1, the RanGTP binding protein RanBP1 or a Ran mutant that cannot stably bind GTP. These treatments block major export and import pathways across the nuclear envelope. Different export pathways exhibit distinct sensitivities to RanGTP depletion, but all are more readily inhibited than is import of either NLS or M9 proteins, indicating that the block of export is direct rather than a secondary consequence of import inhibition. Surprisingly, nuclear export of several substrates including importin-alpha and -beta, transportin, HIV Rev and tRNA appears to require nuclear RanGTP but may not require GTP hydrolysis by Ran, suggesting that the energy for their nuclear export is supplied by another source.

Indexed as

Cell Cycle ProteinsGTPase-Activating ProteinsGuanine Nucleotide Exchange FactorsAnimalsBiological TransportCarrier ProteinsCell CompartmentationCell NucleusCytoplasmDNA-Binding ProteinsGene Products, revGTP-Binding ProteinsGuanosine TriphosphateKaryopherinsMacromolecular SubstancesNuclear ProteinsCarrier ProteinsCell Cycle ProteinsDNA-Binding ProteinsGene Products, revGTPase-Activating ProteinsGTP-Binding ProteinsGuanine Nucleotide Exchange FactorsGuanosine TriphosphateKaryopherinsMacromolecular SubstancesNuclear Proteinsran-binding protein 1ran GTP-Binding ProteinReceptors, Cytoplasmic and NuclearRecombinant Fusion ProteinsRNA

Identifiers

PMID9351834
PMCPMC1170258
OpenAlexW2004004385

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.