Evidence map›Paper›PMID 18036138›Full record

ArticleMolecular microbiology2008

The disulphide isomerase DsbC cooperates with the oxidase DsbA in a DsbD-independent manner.

Didier Vertommen, Matthieu Depuydt, Jonathan Pan, Pauline Leverrier, Laurent Knoops, Jean-Pierre Szikora, Joris Messens, James C A Bardwell, Jean-Francois Collet

Abstract read
In one paragraph

Article in Molecular microbiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
–field-weighted citation impact
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

44 citing papers in PubMed.

  1. Disulphide maintenance systems and proteostasis.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
    Review
  2. Article
  3. Distinct enzymatic strategies forCritical reviews in biochemistry and molecular biology · 2023
    Article
  4. Article
  5. Article
  6. Structural characterization of PaFkbA: A periplasmic chaperone fromComputational and structural biotechnology journal · 2021
    Article
  7. Review
  8. Article
  9. Complex Oxidation of ApocytochromesApplied and environmental microbiology · 2019
    Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article
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

9 authors.

Didier Vertommende Duve Institute, Université catholique de Louvain, B-1200 Brussels, Belgium.
Matthieu Depuydt
Jonathan Pan
Pauline Leverrier
Laurent Knoops
Jean-Pierre Szikora
Joris Messens
James C A Bardwell
Jean-Francois Collet

Funding

FUNCTIONAL ANALYSIS OF A PROTEIN FOLDING CATALYSTR01GM057039 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BARDWELL, JAMES · 1998 to 2006
$1.7M
How are Disulfides transported across membranes?R01GM064662 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BARDWELL, JAMES · 2003 to 2006
$789k
NIGMS NIH HHS R01 GM057039NIGMS NIH HHS R01 GM064662
6 · The paper itself

Abstract

In Escherichia coli, DsbA introduces disulphide bonds into secreted proteins. DsbA is recycled by DsbB, which generates disulphides from quinone reduction. DsbA is not known to have any proofreading activity and can form incorrect disulphides in proteins with multiple cysteines. These incorrect disulphides are thought to be corrected by a protein disulphide isomerase, DsbC, which is kept in the reduced and active configuration by DsbD. The DsbC/DsbD isomerization pathway is considered to be isolated from the DsbA/DsbB pathway. We show that the DsbC and DsbA pathways are more intimately connected than previously thought. dsbA(-)dsbC(-) mutants have a number of phenotypes not exhibited by either dsbA(-), dsbC(-) or dsbA(-)dsbD(-) mutations: they exhibit an increased permeability of the outer membrane, are resistant to the lambdoid phage Phi80, and are unable to assemble the maltoporin LamB. Using differential two-dimensional liquid chromatographic tandem mass spectrometry/mass spectrometry analysis, we estimated the abundance of about 130 secreted proteins in various dsb(-) strains. dsbA(-)dsbC(-) mutants exhibit unique changes at the protein level that are not exhibited by dsbA(-)dsbD(-) mutants. Our data indicate that DsbC can assist DsbA in a DsbD-independent manner to oxidatively fold envelope proteins. The view that DsbC's function is limited to the disulphide isomerization pathway should therefore be reinterpreted.

Indexed as

CysteineDisulfidesEscherichia coliEscherichia coli ProteinsGene Expression Regulation, BacterialMass SpectrometryModels, MolecularOligonucleotide Array Sequence AnalysisOxidation-ReductionPeriplasmic ProteinsPhenotypeProtein Disulfide-IsomerasesProtein FoldingSequence Analysis, ProteinSequence DeletionTandem Mass SpectrometryCysteineDisulfidesdsbA protein, E colidsbC protein, E coliEscherichia coli ProteinsPeriplasmic ProteinsProtein Disulfide-Isomerases

Identifiers

PMID18036138
PMCPMC2614554

What OpenQuestion holds

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Registered trials

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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.