Evidence map›Paper›PMID 24648495›Full record

ArticleMolecular biology of the cell2014

Selective mRNA translation during eIF2 phosphorylation induces expression of IBTKα.

Thomas D Baird, Lakshmi Reddy Palam, Michael E Fusakio, Jeffrey A Willy, Christopher M Davis, Jeanette N McClintick, Tracy G Anthony, Ronald C Wek

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed
5.6field-weighted citation impact, top 3% 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

84 citing papers in PubMed, 127 citations in OpenAlex.

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  18. The Functional Meaning of 5'UTR in Protein-Coding Genes.International journal of molecular sciences · 2023
    Review
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  20. Review

24 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

8 authors at 3 institutions in 1 country.

Thomas D BairdDepartment of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202.
Lakshmi Reddy PalamDepartment of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202.
Michael E FusakioDepartment of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202.
Jeffrey A WillyDepartment of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202Investigative Toxicology, Lilly Research Laboratories, Indianapolis, IN 46285.
Christopher M DavisDepartment of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202.
Jeanette N McClintickDepartment of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202.
Tracy G AnthonyDepartment of Nutritional Sciences, Rutgers University, New Brunswick, NJ 08901.
Ronald C WekDepartment of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202 rwek@iu.edu.
Indiana University School of MedicineEli Lilly (United States) · USRutgers, The State University of New Jersey · US

Funding

Metabolic stress responses andeIF2 kinase GCN2R01GM049164 · NIGMS · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI WEK, RONALD C · 1998 to 2019
$6.3M
RESEARCH TRAINING PROGRAM IN DIABETES AND OBESITYT32DK064466 · NIDDK · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI Carmella Evans-Molina, RONALD C WEK · 2003 to 2026
$5.2M
Molecular Mechanisms of Adverse Metabolic Events by Asparaginase.R01HD070487 · NICHD · RUTGERS, THE STATE UNIV OF N.J. · PI ANTHONY, TRACY G. · 2011 to 2015
$1.9M
HISRS-DOMAIN AND REGULATING GCN2 PROTEIN KINASER29GM049164 · NIGMS · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI WEK, RONALD C · 1993 to 1997
–
NICHD NIH HHS R01 HD070487NIDDK NIH HHS T32 DK064466NIDDK NIH HHS T32DK064466NIGMS NIH HHS GM049164NIGMS NIH HHS R01 GM049164
6 · The paper itself

Abstract

Disruption of protein folding in the endoplasmic reticulum (ER) triggers the unfolded protein response (UPR), a transcriptional and translational control network designed to restore protein homeostasis. Central to the UPR is PKR-like ER kinase (PERK/EIF2AK3) phosphorylation of the α subunit of eIF2 (eIF2α∼P), which represses global translation coincident with preferential translation of mRNAs, such as activating transcription factor 4 (ATF4) and C/EBP-homologous protein (CHOP), that serve to implement UPR transcriptional regulation. In this study, we used sucrose gradient ultracentrifugation and a genome-wide microarray approach to measure changes in mRNA translation during ER stress. Our analysis suggests that translational efficiencies vary over a broad range during ER stress, with the majority of transcripts being either repressed or resistant to eIF2α∼P, whereas a notable cohort of key regulators are subject to preferential translation. From the latter group, we identified the α isoform of inhibitor of Bruton's tyrosine kinase (IBTKα) as being subject to both translational and transcriptional induction during eIF2α∼P in both cell lines and a mouse model of ER stress. Translational regulation of IBTKα mRNA involves stress-induced relief of two inhibitory upstream open reading frames in the 5'-leader of the transcript. Depletion of IBTKα by short hairpin RNA reduced viability of cultured cells coincident with increased caspase 3/7 cleavage, suggesting that IBTKα is a key regulator in determining cell fate during the UPR.

Indexed as

Activating Transcription Factor 4Adaptor Proteins, Signal TransducingAnimalsBase SequenceCarrier ProteinsCaspase 3Caspase 7Cell DivisionCell LineCell SurvivaleIF-2 KinaseEndoplasmic ReticulumEndoplasmic Reticulum StressGene Expression RegulationHep G2 CellsHumansActivating Transcription Factor 4Adaptor Proteins, Signal TransducingAtf4 protein, mouseCarrier ProteinsCasp7 protein, mouseCaspase 3Caspase 7Ddit3 protein, mouseeIF2alpha kinase, mouseeIF-2 KinaseIBtk protein, mouseProtein Serine-Threonine KinasesRNA, MessengerRNA, Small InterferingTranscription Factor CHOP

Identifiers

PMID24648495
PMCPMC4019499
OpenAlexW2102528998

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.