Evidence map›Paper›PMID 17439654›Full record

ArticleGenome biology2007

On the functions of the h subunit of eukaryotic initiation factor 3 in late stages of translation initiation.

Byung-Hoon Kim, Xue Cai, Justin N Vaughn, Albrecht G von Arnim

Abstract read
In one paragraph

Article in Genome biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing 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

57 citing papers in PubMed.

  1. Ribosome stalling position, spacing, and A-site occupancy impact translation and cotranslational mRNA decay in plants.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. From Structure to Function of Promoters and 5'UTRs in Maize.International journal of molecular sciences · 2026
    Review
  3. Structural insights into the role of eIF3 in translation mediated by the HCV IRES.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
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  16. Translational gene regulation in plants: A green new deal.Wiley interdisciplinary reviews. RNA · 2020
    Review
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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

4 authors.

Byung-Hoon KimDepartment of Biochemistry, Cellular and Molecular Biology, The University of Tennessee, Knoxville, TN 37996-0840, USA. bkim2@utk.edu
Xue Cai
Justin N Vaughn
Albrecht G von Arnim

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe eukaryotic translation initiation factor 3 (eIF3) has multiple roles during the initiation of translation of cytoplasmic mRNAs. How individual subunits of eIF3 contribute to the translation of specific mRNAs remains poorly understood, however. This is true in particular for those subunits that are not conserved in budding yeast, such as eIF3h.

resultsWorking with stable reporter transgenes in Arabidopsis thaliana mutants, it was demonstrated that the h subunit of eIF3 contributes to the efficient translation initiation of mRNAs harboring upstream open reading frames (uORFs) in their 5' leader sequence. uORFs, which can function as devices for translational regulation, are present in over 30% of Arabidopsis mRNAs, and are enriched among mRNAs for transcriptional regulators and protein modifying enzymes. Microarray comparisons of polysome loading in wild-type and eif3h mutant seedlings revealed that eIF3h generally helps to maintain efficient polysome loading of mRNAs harboring multiple uORFs. In addition, however, eIF3h also boosted the polysome loading of mRNAs with long leaders or coding sequences. Moreover, the relative polysome loading of certain functional groups of mRNAs, including ribosomal proteins, was actually increased in the eif3h mutant, suggesting that regulons of translational control can be revealed by mutations in generic translation initiation factors.

conclusionThe intact eIF3h protein contributes to efficient translation initiation on 5' leader sequences harboring multiple uORFs, although mRNA features independent of uORFs are also implicated.

Indexed as

Peptide Chain Initiation, Translational5' Untranslated RegionsArabidopsisArabidopsis ProteinsEukaryotic Initiation Factor-3Gene Expression ProfilingGene Expression Regulation, PlantGenes, ReporterMutationOligonucleotide Array Sequence AnalysisOpen Reading FramesPolyribosomesProtein SubunitsRNA, MessengerSequence Analysis, RNATransgenes5' Untranslated RegionsArabidopsis ProteinsEukaryotic Initiation Factor-3Protein SubunitsRNA, Messenger

Identifiers

PMID17439654
PMCPMC1896003

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Registered trials

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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.