Evidence map›Paper›PMID 20398211›Full record

ArticleMolecular microbiology2010

Translocation of Borrelia burgdorferi surface lipoprotein OspA through the outer membrane requires an unfolded conformation and can initiate at the C-terminus.

Ryan J Schulze, Shiyong Chen, Ozan S Kumru, Wolfram R Zückert

Open access · bronzeAbstract 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 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.0field-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, 41 citations in OpenAlex.

  1. Article
  2. Protein Secretion in Spirochetes.Microbiology spectrum · 2019
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. The leptospiral outer membrane.Current topics in microbiology and immunology · 2015
    Review
  10. Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. The double life of a bacterial lipoprotein.Molecular microbiology · 2011
    Article
  19. Lipoproteins of bacterial pathogens.Infection and immunity · 2011
    Review
  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

4 authors at 3 institutions in 2 countries.

Ryan J SchulzeDepartment of Microbiology, Molecular Genetics and Immunology, University of Kansas Medical Center, Mail Stop 3029, 3901 Rainbow Boulevard, Kansas City, KS 66160, USA.
Shiyong Chen
Ozan S Kumru
Wolfram R Zückert
University of Kansas Medical Center · USEquilibrium Research · GBUniversity of Bristol · GB

Funding

Lipoprotein Transport in Borrelia SpirochetesR01AI063261 · NIAID · UNIVERSITY OF KANSAS MEDICAL CENTER · PI ZUECKERT, WOLFRAM R · 2006 to 2010
$1.8M
NIAID NIH HHS R01 AI063261
6 · The paper itself

Abstract

Borrelia burgdorferi surface lipoproteins are essential to the pathogenesis of Lyme borreliosis, but the mechanisms responsible for their localization are only beginning to emerge. We have previously demonstrated the critical nature of the amino-terminal 'tether' domain of the mature lipoprotein for sorting a fluorescent reporter to the Borrelia cell surface. Here, we show that individual deletion of four contiguous residues within the tether of major surface lipoprotein OspA results in its inefficient translocation across the Borrelia outer membrane. Intriguingly, C-terminal epitope tags of these N-terminal deletion mutants were selectively surface-exposed. Fold-destabilizing C-terminal point mutations and deletions did not block OspA secretion, but rather restored one of the otherwise periplasmic tether mutants to the bacterial surface. Together, these data indicate that disturbance of a confined tether feature leads to premature folding of OspA in the periplasm and thereby prevents secretion through the outer membrane. Furthermore, they suggest that OspA emerges tail-first on the bacterial surface, yet independent of a specific C-terminal targeting peptide sequence.

Indexed as

Protein ConformationAmino Acid SequenceAnimalsAntigens, SurfaceBacterial Outer Membrane ProteinsBacterial VaccinesBorrelia burgdorferiCell MembraneEpitopesLipoproteinsModels, MolecularMolecular Sequence DataMutationProtein FoldingProtein TransportSequence AlignmentAntigens, SurfaceBacterial Outer Membrane ProteinsBacterial VaccinesEpitopesLipoproteinsOspA protein

Identifiers

PMID20398211
PMCPMC2999405
OpenAlexW2149695505

What OpenQuestion holds

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LicenceTDM
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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.