Evidence map›Paper›PMID 15687195›Full record

ArticleJournal of bacteriology2005

Putative coiled-coil structural elements of the BBA68 protein of Lyme disease spirochetes are required for formation of its factor H binding site.

John V McDowell, Matthew E Harlin, Elizabeth A Rogers, Richard T Marconi

Abstract read
In one paragraph

Article in Journal of bacteriology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing 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

27 citing papers in PubMed.

  1. Review
  2. Infection and immunity · 2024
    Article
  3. Complement Evasion inAntibiotics (Basel, Switzerland) · 2019
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. The role of Borrelia burgdorferi outer surface proteins.FEMS immunology and medical microbiology · 2012
    Review
  9. Article
  10. Crystallization of the factor H-binding protein, FhbB, from the periopathogen Treponema denticola.Acta crystallographica. Section F, Structural biology and crystallization communications · 2011
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
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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.

John V McDowellDepartment of Microbiology and Immunology, Medical College of Virginia Commonwealth University, Richmond, VA 23298, USA.
Matthew E Harlin
Elizabeth A Rogers
Richard T Marconi

Funding

Immune evasion mechanisms of the BorreliaR01AI037787 · NIAID · VIRGINIA COMMONWEALTH UNIVERSITY · PI MARCONI, RICHARD T · 2002 to 2010
$2.5M
Borrelial Factor H Binding ProteinsR21AI059257 · NIAID · VIRGINIA COMMONWEALTH UNIVERSITY · PI MARCONI, RICHARD T · 2004 to 2005
$405k
NIAID NIH HHS R01 AI037787NIAID NIH HHS R01AI37787NIAID NIH HHS R21 AI059257
6 · The paper itself

Abstract

Factor H and factor H like-protein 1 (FHL-1) are complement regulatory proteins that serve as cofactors for the factor I-mediated cleavage of C3b. Some Lyme disease and relapsing fever spirochete species bind factor H to their surface to facilitate immune evasion. The Lyme disease spirochetes produce several factor H binding proteins (FHBPs) that form two distinct classes. Class I FHBPs (OspE orthologs and paralogs) bind only factor H, while class II FHBPs (BBA68) bind both factor H and FHL-1. BBA68 belongs to a large paralogous protein family, and of these paralogs, BBA69 is the member most closely related to BBA68. To determine if BBA69 can also bind factor H, recombinant protein was generated and tested for factor H binding. BBA69 did not exhibit factor H binding ability, suggesting that among family 54 paralogs, factor H binding is unique to BBA68. To identify the determinants of BBA68 that are involved in factor H binding, truncation and site-directed mutational analyses were performed. These analyses revealed that the factor H binding site is discontinuous and provide strong evidence that coiled-coil structural elements are involved in the formation of the binding site.

Indexed as

Protein ConformationAmino Acid SequenceBacterial ProteinsBinding SitesBorrelia burgdorferiComplement Factor HHumansMolecular Sequence DataMutagenesis, Site-DirectedProtein BindingProtein Structure, TertiarySequence DeletionBacterial ProteinsCFH protein, humanComplement Factor H

Identifiers

PMID15687195
PMCPMC545637

What OpenQuestion holds

Textmetadata
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.