Evidence map›Paper›PMID 29677493›Full record

ArticleMolecular cell2018

Polyamine Control of Translation Elongation Regulates Start Site Selection on Antizyme Inhibitor mRNA via Ribosome Queuing.

Ivaylo P Ivanov, Byung-Sik Shin, Gary Loughran, Ioanna Tzani, Sara K Young-Baird, Chune Cao, John F Atkins, Thomas E Dever

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cell, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 96 papers.

0numbers the graph read from it
0cells of the map it votes in
96citing papers in PubMed
7.2field-weighted citation impact, top 2% 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

96 citing papers in PubMed, 153 citations in OpenAlex.

  1. eIF5A and polyamines restrict mRNA levels in response to ribosome stalls.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  11. Mechanisms suppressing noncoding translation.Trends in cell biology · 2025
    Review
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  15. Translation elongation defects activate theProceedings of the National Academy of Sciences of the United States of America · 2025
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  16. Review
  17. Tiny but mighty: Diverse functions of uORFs that regulate gene expression.Computational and structural biotechnology journal · 2024
    Review
  18. Article
  19. Review
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Ivaylo P IvanovEunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA; School of Biochemistry and Cell Biology, University College Cork, Cork T12 YT57, Ireland. Electronic address: ivaylo.ivanov@nih.gov.
Byung-Sik ShinEunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.
Gary LoughranSchool of Biochemistry and Cell Biology, University College Cork, Cork T12 YT57, Ireland.
Ioanna TzaniSchool of Biochemistry and Cell Biology, University College Cork, Cork T12 YT57, Ireland.
Sara K Young-BairdEunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.
Chune CaoEunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.
John F AtkinsSchool of Biochemistry and Cell Biology, University College Cork, Cork T12 YT57, Ireland.
Thomas E DeverEunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA. Electronic address: thomas.dever@nih.gov.
University College Cork · IEEunice Kennedy Shriver National Institute of Child Health and Human Development · USNational Institutes of Health · US

Funding

Mechanism and Regulation of Eukaryotic Protein SynthesisZIAHD001010 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI DEVER, THOMAS E · 2009 to 2025
$29.4M
Intramural NIH HHS ZIA HD001010
6 · The paper itself

Abstract

Translation initiation is typically restricted to AUG codons, and scanning eukaryotic ribosomes inefficiently recognize near-cognate codons. We show that queuing of scanning ribosomes behind a paused elongating ribosome promotes initiation at upstream weak start sites. Ribosomal profiling reveals polyamine-dependent pausing of elongating ribosomes on a conserved Pro-Pro-Trp (PPW) motif in an inhibitory non-AUG-initiated upstream conserved coding region (uCC) of the antizyme inhibitor 1 (AZIN1) mRNA, encoding a regulator of cellular polyamine synthesis. Mutation of the PPW motif impairs initiation at the uCC's upstream near-cognate AUU start site and derepresses AZIN1 synthesis, whereas substitution of alternate elongation pause sequences restores uCC translation. Impairing ribosome loading reduces uCC translation and paradoxically derepresses AZIN1 synthesis. Finally, we identify the translation factor eIF5A as a sensor and effector for polyamine control of uCC translation. We propose that stalling of elongating ribosomes triggers queuing of scanning ribosomes and promotes initiation by positioning a ribosome near the start codon.

Indexed as

Peptide Chain Elongation, TranslationalPeptide Chain Initiation, TranslationalAmino Acid MotifsAnimalsCarrier ProteinsCell Line, TumorCodon, InitiatorConserved SequenceEukaryotic Translation Initiation Factor 5AHEK293 CellsHumansMiceOpen Reading FramesPeptide Initiation FactorsPolyaminesProteinsCarrier ProteinsCodon, InitiatorEukaryotic Translation Initiation Factor 5Aornithine decarboxylase antizymeornithine decarboxylase antizyme inhibitorPeptide Initiation FactorsPolyaminesProteinsRNA-Binding ProteinsRNA, Messengerantizyme inhibitorAZIN1eIF5Anear cognatepolyaminesribosomespermidine

Identifiers

PMID29677493
PMCPMC5916843
OpenAlexW2799312938

What OpenQuestion holds

Textmetadata
LicenceTDM
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.