Evidence map›Paper›PMID 31695187›Full record

ArticleNature structural & molecular biology2019

UPR proteins IRE1 and PERK switch BiP from chaperone to ER stress sensor.

Megan C Kopp, Natacha Larburu, Vinoth Durairaj, Christopher J Adams, Maruf M U Ali

Open access · greenAbstract read
In one paragraph

Article in Nature structural & molecular biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 240 papers.

0numbers the graph read from it
0cells of the map it votes in
240citing papers in PubMed
15.6field-weighted citation impact, top 1% 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

240 citing papers in PubMed, 394 citations in OpenAlex.

  1. Cell surface GRP78 and the UPR pathway as novel promising therapeutic targets in cancer: an insight into the treatment of acute leukemia by using GRP78-CART cells.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
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  5. Article
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  8. Immunoglobulin binding protein (BiP) forms two types of dimers.Protein science : a publication of the Protein Society · 2026
    Article
  9. Article
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  11. Disruption of thePathogens (Basel, Switzerland) · 2026
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  20. Tumor necrosis factor α-induced endoplasmic reticulum stress promotes airway smooth muscle cell proliferation.American journal of physiology. Lung cellular and molecular physiology · 2026
    Article

180 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

5 authors at 1 institution in 1 country.

Megan C KoppDepartment of Life Sciences, Sir Ernst Chain Building, Imperial College London, London, UK.
Natacha LarburuDepartment of Life Sciences, Sir Ernst Chain Building, Imperial College London, London, UK.
Vinoth DurairajDepartment of Life Sciences, Sir Ernst Chain Building, Imperial College London, London, UK.
Christopher J AdamsDepartment of Life Sciences, Sir Ernst Chain Building, Imperial College London, London, UK.
Maruf M U AliDepartment of Life Sciences, Sir Ernst Chain Building, Imperial College London, London, UK. maruf.ali@imperial.ac.uk.ORCID http://orcid.org/0000-0001-5392-4029
Imperial College London · GB

Funding

Cancer Research UK 20752Cancer Research UK A20752Cancer Research UK A23215
6 · The paper itself

Abstract

BiP is a major endoplasmic reticulum (ER) chaperone and is suggested to act as primary sensor in the activation of the unfolded protein response (UPR). How BiP operates as a molecular chaperone and as an ER stress sensor is unknown. Here, by reconstituting components of human UPR, ER stress and BiP chaperone systems, we discover that the interaction of BiP with the luminal domains of UPR proteins IRE1 and PERK switch BiP from its chaperone cycle into an ER stress sensor cycle by preventing the binding of its co-chaperones, with loss of ATPase stimulation. Furthermore, misfolded protein-dependent dissociation of BiP from IRE1 is primed by ATP but not ADP. Our data elucidate a previously unidentified mechanistic cycle of BiP function that explains its ability to act as an Hsp70 chaperone and ER stress sensor.

Indexed as

Endoplasmic Reticulum StressAdenosine TriphosphateeIF-2 KinaseEndoplasmic Reticulum Chaperone BiPEndoribonucleasesHeat-Shock ProteinsHSP70 Heat-Shock ProteinsHumansModels, MolecularProtein FoldingProtein Interaction Domains and MotifsProtein Interaction MapsProtein Serine-Threonine KinasesUnfolded Protein ResponseAdenosine TriphosphateEIF2AK3 protein, humaneIF-2 KinaseEndoplasmic Reticulum Chaperone BiPEndoribonucleasesERN1 protein, humanHeat-Shock ProteinsHSP70 Heat-Shock ProteinsProtein Serine-Threonine Kinases

Identifiers

PMID31695187
PMCPMC6858872
OpenAlexW2983567059

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.