Evidence map›Paper›PMID 18167559›Full record

ArticlePloS one2008

Variability and action mechanism of a family of anticomplement proteins in Ixodes ricinus.

Bernard Couvreur, Jérôme Beaufays, Cédric Charon, Kathia Lahaye, François Gensale, Valérie Denis, Benoît Charloteaux, Yves Decrem, Pierre-Paul Prévôt, Michel Brossard and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

36 citing papers in PubMed, 98 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Tick saliva and its role in pathogen transmission.Wiener klinische Wochenschrift · 2023
    Article
  6. Review
  7. Review
  8. The Brilliance ofPathogens (Basel, Switzerland) · 2021
    Review
  9. Immune Response toCurrent issues in molecular biology · 2021
    Article
  10. Immunomodulatory Proteins in Tick Saliva From a Structural Perspective.Frontiers in cellular and infection microbiology · 2021
    Review
  11. Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Gene Duplication and Protein Evolution in Tick-Host Interactions.Frontiers in cellular and infection microbiology · 2017
    Review
  17. Review
  18. Review
  19. Article
  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

12 authors at 3 institutions in 2 countries.

Bernard CouvreurLaboratory for Molecular Biology of Ectoparasites, Institut de Biologie et de Médecine Moléculaires (IBMM), Université Libre de Bruxelles, Gosselies, Belgium.
Jérôme Beaufays
Cédric Charon
Kathia Lahaye
François Gensale
Valérie Denis
Benoît Charloteaux
Yves Decrem
Pierre-Paul Prévôt
Michel Brossard
Luc Vanhamme
Edmond Godfroid
Université Libre de Bruxelles · BEGembloux Agro-Bio Tech · BEUniversity of Neuchâtel · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTicks are blood feeding arachnids that characteristically take a long blood meal. They must therefore counteract host defence mechanisms such as hemostasis, inflammation and the immune response. This is achieved by expressing batteries of salivary proteins coded by multigene families. METHODOLOGY/PRINCIPAL

findingsWe report the in-depth analysis of a tick multigene family and describe five new anticomplement proteins in Ixodes ricinus. Compared to previously described Ixodes anticomplement proteins, these segregated into a new phylogenetic group or subfamily. These proteins have a novel action mechanism as they specifically bind to properdin, leading to the inhibition of C3 convertase and the alternative complement pathway. An excess of non-synonymous over synonymous changes indicated that coding sequences had undergone diversifying selection. Diversification was not associated with structural, biochemical or functional diversity, adaptation to host species or stage specificity but rather to differences in antigenicity. CONCLUSIONS/SIGNIFICANCE: Anticomplement proteins from I. ricinus are the first inhibitors that specifically target a positive regulator of complement, properdin. They may provide new tools for the investigation of role of properdin in physiological and pathophysiological mechanisms. They may also be useful in disorders affecting the alternative complement pathway. Looking for and detecting the different selection pressures involved will help in understanding the evolution of multigene families and hematophagy in arthropods.

Indexed as

AnimalsComplement Inactivator ProteinsEnzyme-Linked Immunosorbent AssayInsect ProteinsIxodesPhylogenyProperdinProtein BindingReverse Transcriptase Polymerase Chain ReactionSepharoseComplement Inactivator ProteinsInsect ProteinsProperdinSepharose

Identifiers

PMID18167559
PMCPMC2151134
OpenAlexW1981003930

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.