Evidence map›Paper›PMID 30692133›Full record

ArticleThe EMBO journal2019

The pseudokinase TRIB1 toggles an intramolecular switch to regulate COP1 nuclear export.

Jennifer E Kung, Natalia Jura

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

27 citing papers in PubMed, 44 citations in OpenAlex.

  1. Review
  2. Disruption ofAnimals : an open access journal from MDPI · 2026
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  14. Emerging functions of pseudoenzymes.The Biochemical journal · 2023
    Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. 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

2 authors at 1 institution in 1 country.

Jennifer E KungCardiovascular Research Institute, University of California-San Francisco, San Francisco, CA, USA.ORCID 0000-0002-6784-7076
Natalia JuraCardiovascular Research Institute, University of California-San Francisco, San Francisco, CA, USA natalia.jura@ucsf.edu.ORCID 0000-0001-5129-641X
University of California, San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

COP1 is a highly conserved ubiquitin ligase that regulates diverse cellular processes in plants and metazoans. Tribbles pseudokinases, which only exist in metazoans, act as scaffolds that interact with COP1 and its substrates to facilitate ubiquitination. Here, we report that, in addition to this scaffolding role, TRIB1 promotes nuclear localization of COP1 by disrupting an intramolecular interaction between the WD40 domain and a previously uncharacterized regulatory site within COP1. This site, which we have termed the pseudosubstrate latch (PSL), resembles the consensus COP1-binding motif present in known COP1 substrates. Our findings support a model in which binding of the PSL to the WD40 domain stabilizes a conformation of COP1 that is conducive to CRM1-mediated nuclear export, and TRIB1 displaces this intramolecular interaction to induce nuclear retention of COP1. Coevolution of Tribbles and the PSL in metazoans further underscores the importance of this role of Tribbles in regulating COP1 function.

Indexed as

WD40 RepeatsActive Transport, Cell NucleusAmino Acid SequenceCell NucleusExportin 1 ProteinHEK293 CellsHumansIntracellular Signaling Peptides and ProteinsKaryopherinsProtein BindingProtein Serine-Threonine KinasesReceptors, Cytoplasmic and NuclearSequence HomologyUbiquitinUbiquitinationUbiquitin-Protein LigasesCOP1 protein, humanExportin 1 ProteinIntracellular Signaling Peptides and ProteinsKaryopherinsProtein Serine-Threonine KinasesReceptors, Cytoplasmic and NuclearTRIB1 protein, humanUbiquitinUbiquitin-Protein LigasesCOP1E3 ubiquitin ligasenuclear exportpseudokinaseTribbles

Identifiers

PMID30692133
PMCPMC6376274
OpenAlexW2911813896

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.