Evidence map›Paper›PMID 20807195›Full record

ArticleMolecular microbiology2010

Asp3 mediates multiple protein-protein interactions within the accessory Sec system of Streptococcus gordonii.

Ravin Seepersaud, Barbara A Bensing, Yihfen T Yen, Paul M Sullam

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 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
4.6field-weighted citation impact, top 6% 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

25 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Bacterial Secretion Systems: An Overview.Microbiology spectrum · 2016
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Emerging themes in SecA2-mediated protein export.Nature reviews. Microbiology · 2012
    Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. Protein secretion and surface display in Gram-positive bacteria.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2012
    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

4 authors at 1 institution in 1 country.

Ravin SeepersaudSan Francisco Veteran Affairs Medical Center, University of California, San Francisco, CA 94121, USA.
Barbara A Bensing
Yihfen T Yen
Paul M Sullam
San Francisco VA Medical Center · US

Funding

STREPTOCOCCAL PLATELET BINDING AND ENDOCARDITISR01AI041513 · NIAID · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI SULLAM, PAUL M. · 1997 to 2019
$5.6M
Prophage-Encoded Binding of S. mitis to Human PlateletsR01AI057433 · NIAID · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI SULLAM, PAUL M. · 2004 to 2008
$1.8M
NIAID NIH HHS R01 AI041513NIAID NIH HHS R01 AI057433NIAID NIH HHS R01 AI41513
6 · The paper itself

Abstract

Bacterial binding to human platelets is an important step in the pathogenesis of infective endocarditis. Streptococcus gordonii can mediate its platelet attachment through a cell wall glycoprotein termed GspB ('gordonii surface protein B'). GspB export is mediated by a seven-component accessory Sec system, containing two homologues of the general secretory pathway (SecA2 and SecY2) and five accessory Sec proteins (Asps1-5). Here we show that the Asps are required for optimal export of GspB independent of the glycosylation process. Furthermore, yeast two-hybrid screening of the accessory Sec system revealed interactions occurring between Asp3 and the other components of the system. Asp3 was shown to bind SecA2, Asp1, Asp2 and itself. Mutagenesis of Asp3 identified N- and C-terminal regions that are essential for GspB transport, and conserved residues within the C-terminal domain mediated Asp3 binding to other accessory Sec components. The loss of binding by Asp3 also resulted in an impaired ability of S. gordonii to secrete GspB. These studies indicate that Asp3 is a central element mediating multiple interactions among accessory Sec components that are essential for GspB transport to the cell surface.

Indexed as

Amino Acid SequenceBacterial AdhesionBacterial ProteinsINDEL MutationMolecular Sequence DataProtein Interaction MappingProtein TransportStreptococcus gordoniiBacterial Proteins

Identifiers

PMID20807195
PMCPMC2959127
OpenAlexW1918908790

What OpenQuestion holds

Textmetadata
LicenceTDM
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.