Evidence map›Paper›PMID 20598079›Full record

ArticleMolecular microbiology2010

Dissection of β-barrel outer membrane protein assembly pathways through characterizing BamA POTRA 1 mutants of Escherichia coli.

Drew Bennion, Emily S Charlson, Eric Coon, Rajeev Misra

Abstract read
In one paragraph

Article in Molecular microbiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing 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

80 citing papers in PubMed.

  1. Review
  2. 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
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Effects of pleiotropicJournal of bacteriology · 2024
    Article
  11. Article
  12. Article
  13. Review
  14. Drug Binding to BamA Targets Its Lateral Gate.The journal of physical chemistry. B · 2023
    Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

20 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

4 authors.

Drew BennionSchool of Life Sciences, Arizona State University, Tempe, AZ 85287, USA.
Emily S Charlson
Eric Coon
Rajeev Misra

Funding

TARGETING AND ASSEMBLY OF E COLI OUTER MEMBRANE PROTEINSR01GM048167 · NIGMS · ARIZONA STATE UNIVERSITY-TEMPE CAMPUS · PI MISRA, RAJEEV · 1997 to 2011
$2.4M
NIGMS NIH HHS R01 GM048167NIGMS NIH HHS R01-GM048167
6 · The paper itself

Abstract

BamA of Escherichia coli is an essential component of the hetero-oligomeric machinery that mediates β-barrel outer membrane protein (OMP) assembly. The C- and N-termini of BamA fold into trans-membrane β-barrel and five soluble POTRA domains respectively. Detailed characterization of BamA POTRA 1 missense and deletion mutants revealed two competing OMP assembly pathways, one of which is followed by the archetypal trimeric β-barrel OMPs, OmpF and LamB, and is dependent on POTRA 1. Interestingly, our data suggest that BamA also requires its POTRA 1 domain for proper assembly. The second pathway is independent of POTRA 1 and is exemplified by TolC. Site-specific cross-linking analysis revealed that the POTRA 1 domain of BamA interacts with SurA, a periplasmic chaperone required for the assembly of OmpF and LamB, but not that of TolC and BamA. The data suggest that SurA and BamA POTRA 1 domain function in concert to assist folding and assembly of most β-barrel OMPs except for TolC, which folds into a unique soluble α-helical barrel and an OM-anchored β-barrel. The two assembly pathways finally merge at some step beyond POTRA 1 but presumably before membrane insertion, which is thought to be catalysed by the trans-membrane β-barrel domain of BamA.

Indexed as

Bacterial Outer Membrane ProteinsCarrier ProteinsCell MembraneEscherichia coliEscherichia coli ProteinsMutant ProteinsMutation, MissensePeptidylprolyl IsomeraseProtein Structure, TertiarySequence DeletionBacterial Outer Membrane ProteinsBamA protein, E coliCarrier ProteinsEscherichia coli ProteinsMutant ProteinsPeptidylprolyl IsomeraseSurA protein, E coli

Identifiers

PMID20598079
PMCPMC2975826

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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.