Evidence map›Paper›PMID 15037772›Full record

ArticleRNA (New York, N.Y.)2004

In vivo recruitment of exon junction complex proteins to transcription sites in mammalian cell nuclei.

Noélia Custódio, Célia Carvalho, Inês Condado, Michael Antoniou, Benjamin J Blencowe, Maria Carmo-Fonseca

Open access · bronzeAbstract read
In one paragraph

Article in RNA (New York, N.Y.), 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

44 citing papers in PubMed, 85 citations in OpenAlex.

  1. A unified photosensitizer platform forbioRxiv : the preprint server for biology · 2026
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  8. Integration of mRNP formation and export.Cellular and molecular life sciences : CMLS · 2017
    Review
  9. Article
  10. Article
  11. Article
  12. The exon junction complex as a node of post-transcriptional networks.Nature reviews. Molecular cell biology · 2016
    Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. 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

6 authors at 3 institutions in 3 countries.

Noélia CustódioInstitute of Molecular Medicine, Faculty of Medicine, University of Lisbon, Lisbon 1649-028, Portugal.
Célia Carvalho
Inês Condado
Michael Antoniou
Benjamin J Blencowe
Maria Carmo-Fonseca
University of Lisbon · PTGuy's Hospital · GBUniversity of Toronto · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Studies over the past years indicate that there is extensive coupling between nuclear export of mRNA and pre-mRNA processing. Here, we visualized the distribution of exon junction complex (EJC) proteins and RNA export factors relative to sites of abundant pre-mRNA synthesis in the nucleus. We analyzed both HeLa cells infected with adenovirus and murine erythroleukemia (MEL) cells stably transfected with the human beta-globin gene. Using in situ hybridization and confocal microscopy, we observe accumulation of EJC proteins (REF/Aly, Y14, SRm160, UAP56, RNPS1, and Magoh) and core spliceosome components (U snRNPs) at sites of transcription. This suggests that EJC proteins bind stably to pre-mRNA cotranscriptionally. No concentration of the export factors NXF1/TAP, p15, and Dbp5 was detected on nascent transcripts, arguing that in mammalian cells these proteins bind the mRNA shortly before or after release from the sites of transcription. These results also suggest that binding of EJC proteins to the mRNA is not sufficient to recruit TAP-p15, consistent with recent findings showing that the EJC does not play a crucial role in mRNA export. Contrasting to the results obtained in MEL cells expressing normal human beta-globin transcripts, mutant pre-mRNAs defective in splicing and 3'end processing do not colocalize with SRm160, REF, UAP56, or Sm proteins. This shows that the accumulation of EJC proteins at transcription sites requires efficient processing of the nascent pre-mRNAs, arguing that transcription per se is not sufficient for the stable assembly of the EJC.

Indexed as

RNA Processing, Post-TranscriptionalRNA Splice SitesAdenoviridaeAdenoviridae InfectionsCarrier ProteinsCell NucleusDEAD-box RNA HelicasesGlobinsHeLa CellsHumansMacromolecular SubstancesNucleocytoplasmic Transport ProteinsRNA-Binding ProteinsRNA HelicasesSpliceosomesCarrier ProteinsDDX19B protein, humanDEAD-box RNA HelicasesGlobinsMacromolecular SubstancesNucleocytoplasmic Transport ProteinsNXF1 protein, humanNXT1 protein, humanRNA-Binding ProteinsRNA HelicasesRNA Splice Sites

Identifiers

PMID15037772
PMCPMC1370553
OpenAlexW2107807571

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.