Evidence map›Paper›PMID 15059963›Full record

ArticleGenes & development2004

The pioneer translation initiation complex is functionally distinct from but structurally overlaps with the steady-state translation initiation complex.

Shang-Yi Chiu, Fabrice Lejeune, Aparna C Ranganathan, Lynne E Maquat

Open access · diamondAbstract read
In one paragraph

Article in Genes & development, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
–field-weighted citation impact
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

72 citing papers in PubMed, 132 citations in OpenAlex.

  1. Review
  2. Posttranscriptional Regulation by Proteins and Noncoding RNAs.Advances in experimental medicine and biology · 2024
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  5. RNA metabolism and links to inflammatory regulation and disease.Cellular and molecular life sciences : CMLS · 2021
    Review
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12 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

4 authors at 1 institution in 1 country.

Shang-Yi ChiuDepartment of Biochemistry and Biophysics, School of Medicine and Dentistry, University of Rochester, Rochester, New York 14642, USA.
Fabrice Lejeune
Aparna C Ranganathan
Lynne E Maquat
University of Rochester · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The bulk of cellular proteins derive from the translation of eukaryotic translation initiation factor (eIF)4E-bound mRNA. However, recent studies of nonsense-mediated mRNA decay (NMD) indicate that cap-binding protein (CBP)80-bound mRNA, which is a precursor to eIF4E-bound mRNA, can also be translated during a pioneer round of translation. Here, we report that the pioneer round, which can be assessed by measuring NMD, is not inhibited by 4E-BP1, which is known to inhibit steady-state translation by competing with eIF4G for binding to eIF4E. Therefore, at least in this way, the pioneer round of translation is distinct from steady-state translation. eIF4GI, poly(A)-binding protein (PABP)1, eIF3, eIF4AI, and eIF2alpha coimmunopurify with both CBP80 and eIF4E, which suggests that each factor functions in both modes of translation. Consistent with roles for PABP1 and eIF2alpha in the pioneer round of translation, PABP-interacting protein 2, which is known to destabilize PABP1 binding to poly(A) and inhibit steady-state translation, as well as inactive eIF2alpha, which is also known to inhibit steady-state translation, also inhibit NMD. Polysome profiles indicate that CBP80-bound mRNAs are translated less efficiently than their eIF4E-bound counterparts.

Indexed as

Peptide Chain Initiation, TranslationalProtein BiosynthesisAdaptor Proteins, Signal TransducingAnimalsBlotting, WesternCaenorhabditis elegans ProteinsCarrier ProteinsCell Cycle ProteinsChlorocebus aethiopsCodon, NonsenseCOS CellsEukaryotic Initiation Factor-2Eukaryotic Initiation Factor-3Eukaryotic Initiation Factor-4EEukaryotic Initiation Factor-4GHumansAdaptor Proteins, Signal TransducingCaenorhabditis elegans ProteinsCarrier ProteinsCell Cycle ProteinsCodon, NonsenseEIF4EBP1 protein, humanEukaryotic Initiation Factor-2Eukaryotic Initiation Factor-3Eukaryotic Initiation Factor-4EEukaryotic Initiation Factor-4GLuciferasesNuclear Cap-Binding Protein ComplexPhosphoproteinsPoly(A)-Binding Protein IRNA CapsRNA, MessengerSMG-7 protein, C elegans

Identifiers

PMID15059963
PMCPMC387415
OpenAlexW1983060008

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.