Evidence map›Paper›PMID 19751744›Full record

ArticleJournal of molecular biology2009

eIF1 controls multiple steps in start codon recognition during eukaryotic translation initiation.

Jagpreet S Nanda, Yuen-Nei Cheung, Julie E Takacs, Pilar Martin-Marcos, Adesh K Saini, Alan G Hinnebusch, Jon R Lorsch

Abstract read
In one paragraph

Article in Journal of molecular biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers.

0numbers the graph read from it
0cells of the map it votes in
93citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

93 citing papers in PubMed, 133 citations in OpenAlex.

  1. Trial
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  8. eIF1 and eIF5 dynamically control translation start site fidelity.Nature structural & molecular biology · 2025
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  12. Review
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33 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

7 authors at 3 institutions in 1 country.

Jagpreet S NandaDepartment of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
Yuen-Nei Cheung
Julie E Takacs
Pilar Martin-Marcos
Adesh K Saini
Alan G Hinnebusch
Jon R Lorsch
Eunice Kennedy Shriver National Institute of Child Health and Human Development · USNational Institutes of Health · USJohns Hopkins Medicine · US

Funding

Translational & Transcriptional Control Of Gene Expression By Nutrients In YeastZIAHD001004 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI HINNEBUSCH, ALAN G · 2009 to 2025
$34.4M
KINETIC DISSECTION OF EUKARYOTIC TRANSLATION INITIATIONR01GM062128 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI GREEN, RACHEL · 2000 to 2013
$4.6M
Intramural NIH HHSNIGMS NIH HHS GM62128NIGMS NIH HHS R01 GM062128
6 · The paper itself

Abstract

Eukaryotic translation initiation factor (eIF) 1 is a central mediator of start codon recognition. Dissociation of eIF1 from the preinitiation complex (PIC) allows release of phosphate from the G-protein factor eIF2, triggering downstream events in initiation. Mutations that weaken binding of eIF1 to the PIC decrease the fidelity of start codon recognition (Sui(-) phenotype) by allowing increased eIF1 release at non-AUG codons. Consistent with this, overexpression of these mutant proteins suppresses their Sui(-) phenotypes. Here, we have examined mutations at the penultimate residue of eIF1, G107, that produce Sui(-) phenotypes without increasing the rate of eIF1 release. We provide evidence that, in addition to its role in gating phosphate release, dissociation of eIF1 triggers conversion from an open, scanning-competent state of the PIC to a stable, closed one. We also show that eIF5 antagonizes binding of eIF1 to the complex and that key interactions of eIF1 with its partners are modulated by the charge at and around G107. Our data indicate that eIF1 plays multiple roles in start codon recognition and suggest that prior to AUG recognition it prevents eIF5 from binding to a key site in the PIC required for triggering downstream events.

Indexed as

Peptide Chain Initiation, TranslationalAmino Acid SubstitutionAnimalsCodon, InitiatorEukaryotic Initiation Factor-1HumansRibosome Subunits, Small, EukaryoticSaccharomyces cerevisiaeCodon, InitiatorEukaryotic Initiation Factor-1eukaryotic peptide initiation factor-1A

Identifiers

PMID19751744
PMCPMC2783965
OpenAlexW2052543720

What OpenQuestion holds

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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.