Evidence map›Paper›PMID 19054761›Full record

ArticleThe Journal of biological chemistry2009

Substrate specificity of the oxidoreductase ERp57 is determined primarily by its interaction with calnexin and calreticulin.

Catherine E Jessop, Timothy J Tavender, Rachel H Watkins, Joseph E Chambers, Neil J Bulleid

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

45 citing papers in PubMed, 87 citations in OpenAlex.

  1. Review
  2. Article
  3. ER-resident proteins are key players in cartilage and bone homeostasis.Frontiers in cell and developmental biology · 2025
    Review
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  15. Induction of CFTR gene expression by 1,25(OH)The Journal of steroid biochemistry and molecular biology · 2017
    Article
  16. Article
  17. Review
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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 1 institution in 1 country.

Catherine E JessopFaculty of Life Sciences, The Michael Smith Building, University of Manchester, Manchester, M13 9PT, United Kingdom.
Timothy J Tavender
Rachel H Watkins
Joseph E Chambers
Neil J Bulleid
University of Manchester · GB

Funding

Biotechnology and Biological Sciences Research Council BB/D00764X/1Biotechnology and Biological Sciences Research Council D00764Wellcome Trust 074081
6 · The paper itself

Abstract

The formation of disulfides within proteins entering the secretory pathway is catalyzed by the protein disulfide isomerase family of endoplasmic reticulum localized oxidoreductases. One such enzyme, ERp57, is thought to catalyze the isomerization of non-native disulfide bonds formed in glycoproteins with unstructured disulfide-rich domains. Here we investigated the mechanism underlying ERp57 specificity toward glycoprotein substrates and the interdependence of ERp57 and the calnexin cycle for their correct folding. Our results clearly show that ERp57 must be physically associated with the calnexin cycle to catalyze isomerization reactions with most of its substrates. In addition, some glycoproteins only require ERp57 for correct disulfide formation if they enter the calnexin cycle. Hence, the specificity of ER oxidoreductases is not only determined by the physical association of enzyme and substrate but also by accessory factors, such as calnexin and calreticulin in the case of ERp57. These conclusions suggest that the calnexin cycle has evolved with a specialized oxidoreductase to facilitate native disulfide formation in complex glycoproteins.

Indexed as

AnimalsCalnexinCalreticulinCell LineDisulfidesHumansIntegrin beta1MiceMice, KnockoutMutationOxidation-ReductionProtein BindingProtein Disulfide-IsomerasesProtein FoldingSubstrate SpecificityCalnexinCalreticulinDisulfidesIntegrin beta1PDIA3 protein, humanPdia3 protein, mouseProtein Disulfide-Isomerases

Identifiers

PMID19054761
PMCPMC2629083
OpenAlexW1963682802

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.