Evidence map›Paper›PMID 35676411›Full record

ArticleCommunications biology2022

Dynamic interplay between the periplasmic chaperone SurA and the BAM complex in outer membrane protein folding.

Bob Schiffrin, Jonathan M Machin, Theodoros K Karamanos, Anastasia Zhuravleva, David J Brockwell, Sheena E Radford, Antonio N Calabrese

Open access · goldAbstract read
In one paragraph

Article in Communications biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

23 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
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  5. Review
  6. Review
  7. A fluorescent reporter and single-turnover kinetics reveal insight into BAM complex function.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. The Name Is Barrel, β-Barrel.Methods in molecular biology (Clifton, N.J.) · 2024
    Article
  18. Article
  19. Article
  20. Review
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

7 authors at 1 institution in 1 country.

Bob SchiffrinAstbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK.ORCID 0000-0002-1670-7356
Jonathan M MachinAstbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK.
Theodoros K KaramanosAstbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK.
Anastasia ZhuravlevaAstbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK.
David J BrockwellAstbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK.ORCID 0000-0002-0802-5937
Sheena E RadfordAstbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK. s.e.radford@leeds.ac.uk.ORCID 0000-0002-3079-8039
Antonio N CalabreseAstbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK. a.calabrese@leeds.ac.uk.ORCID 0000-0003-2437-7761
University of Leeds · GB

Funding

Biotechnology and Biological Sciences Research Council BB/M012573/1Biotechnology and Biological Sciences Research Council BB/N007603/1Biotechnology and Biological Sciences Research Council BB/P000037/1Biotechnology and Biological Sciences Research Council BB/T000635/1Department of Health NIHR200633Medical Research Council MR/T011149/1Wellcome Trust 105615/Z/14/ZWellcome Trust 208385/Z/17/ZWellcome Trust 220628Wellcome Trust 220628/Z/20/ZWellcome Trust 222373/Z/21/ZWellcome Trust 223268/Z/21/Z
6 · The paper itself

Abstract

Correct folding of outer membrane proteins (OMPs) into the outer membrane of Gram-negative bacteria depends on delivery of unfolded OMPs to the β-barrel assembly machinery (BAM). How unfolded substrates are presented to BAM remains elusive, but the major OMP chaperone SurA is proposed to play a key role. Here, we have used hydrogen deuterium exchange mass spectrometry (HDX-MS), crosslinking, in vitro folding and binding assays and computational modelling to show that the core domain of SurA and one of its two PPIase domains are key to the SurA-BAM interaction and are required for maximal catalysis of OMP folding. We reveal that binding causes changes in BAM and SurA conformation and/or dynamics distal to the sites of binding, including at the BamA β1-β16 seam. We propose a model for OMP biogenesis in which SurA plays a crucial role in OMP delivery and primes BAM to accept substrates for folding.

Indexed as

Escherichia coli ProteinsBacterial Outer Membrane ProteinsCarrier ProteinsEscherichia coliMolecular ChaperonesPeptidylprolyl IsomerasePeriplasmProtein FoldingBacterial Outer Membrane ProteinsBamA protein, E coliCarrier ProteinsEscherichia coli ProteinsMolecular ChaperonesPeptidylprolyl IsomeraseSurA protein, E coli

Identifiers

PMID35676411
PMCPMC9177699
OpenAlexW4282925859

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.