Evidence map›Paper›PMID 30726166›Full record

ArticleMolecular biology of the cell2019

Cellular eIF2B subunit localization: implications for the integrated stress response and its control by small molecule drugs.

Rachel E Hodgson, Beatriz A Varanda, Mark P Ashe, K Elizabeth Allen, Susan G Campbell

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

11 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Signaling plasticity in the integrated stress response.Frontiers in cell and developmental biology · 2023
    Review
  6. Review
  7. Article
  8. 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

5 authors at 2 institutions in 1 country.

Rachel E HodgsonBiomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield S1 1WB, United Kingdom.
Beatriz A VarandaBiomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield S1 1WB, United Kingdom.
Mark P AsheDivision of Molecular and Cellular Function, Faculty of Biology, Medicine and Health, School of Biological Sciences, The University of Manchester, Manchester M13 9PL, United Kingdom.
K Elizabeth AllenBiomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield S1 1WB, United Kingdom.
Susan G CampbellBiomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield S1 1WB, United Kingdom.
Sheffield Hallam University · GBUniversity of Manchester · GB

Funding

Biotechnology and Biological Sciences Research Council BB/N000757/1
6 · The paper itself

Abstract

Eukaryotic initiation factor 2 (eIF2) is a G protein critical for translation. It is tightly regulated in the integrated stress response (ISR) via phosphorylation of eIF2α and the subsequent control of eukaryotic initiation factor 2B (eIF2B), a multisubunit guanine nucleotide exchange factor. Through studying the localization of eIF2B subunits, we identified cytoplasmic eIF2B bodies in mammalian cells. We highlight a relationship between body size and the eIF2B subunits localizing to them; larger bodies contain all subunits and smaller bodies contain predominantly catalytic subunits. eIF2 localizes to eIF2B bodies and shuttles within these bodies in a manner that correlates with eIF2B activity. On stress, eIF2α-P localizes predominately to larger bodies and results in a decreased shuttling of eIF2. Interestingly, drugs that inhibit the ISR can rescue eIF2 shuttling in a manner correlating to levels of eIF2α-P. In contrast, smaller bodies show increased eIF2 shuttling in response to stress, which is accompanied by the localization of eIF2Bδ to these bodies, suggesting the formation of a novel trimeric complex of eIF2B. This response is mimicked by ISR-inhibiting drugs, providing insight into their potential mechanism of action. This study provides evidence that the composition and function of mammalian eIF2B bodies are regulated by the ISR and the drugs that control it.

Indexed as

AnimalsCHO CellsCricetulusEukaryotic Initiation Factor-2Eukaryotic Initiation Factor-2BGuanine Nucleotide Exchange FactorsHEK293 CellsHep G2 CellsHumansPhosphorylationStress, PhysiologicalEukaryotic Initiation Factor-2Eukaryotic Initiation Factor-2BGuanine Nucleotide Exchange Factors

Identifiers

PMID30726166
PMCPMC6589909
OpenAlexW2912732645

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.