Evidence map›Paper›PMID 19503104›Full record

ArticleNature immunology2009

Structure of complement fragment C3b-factor H and implications for host protection by complement regulators.

Jin Wu, You-Qiang Wu, Daniel Ricklin, Bert J C Janssen, John D Lambris, Piet Gros

Open access · greenAbstract read
In one paragraph

Article in Nature immunology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 199 papers.

0numbers the graph read from it
0cells of the map it votes in
199citing papers in PubMed
10.5field-weighted citation impact, top 1% 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

199 citing papers in PubMed, 324 citations in OpenAlex.

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  15. The Complement System.Advances in experimental medicine and biology · 2025
    Review
  16. Review
  17. Review
  18. Article
  19. Review
  20. The hypothetical molecular mechanism of the ethnic variations in the manifestation of age-related macular degeneration; focuses on the functions of the most significant susceptibility genes.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Review

139 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

6 authors at 2 institutions in 2 countries.

Jin WuCrystal and Structural Chemistry, Bijvoet Center for Biomolecular Research, Department of Chemistry, Utrecht University, Utrecht, The Netherlands.
You-Qiang Wu
Daniel Ricklin
Bert J C Janssen
John D Lambris
Piet Gros
University of Pennsylvania · USUtrecht University · NL

Funding

Role of complement in kidney disorders: from hemodialysis to transportationP01AI068730 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI LAMBRIS, JOHN D · 2007 to 2018
$16.0M
STRUCTURE-FUNCTION ANALYSIS OF DIFFERENT C3 SPECIESR01AI030040 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI LAMBRIS, JOHN D · 1993 to 2016
$4.1M
NIAID NIH HHS P01 AI068730NIAID NIH HHS R01 AI030040
6 · The paper itself

Abstract

Factor H (FH) is an abundant regulator of complement activation and protects host cells from self-attack by complement. Here we provide insight into the regulatory activity of FH by solving the crystal structure of the first four domains of FH in complex with its target, complement fragment C3b. FH interacted with multiple domains of C3b, covering a large, extended surface area. The structure indicated that FH destabilizes the C3 convertase by competition and electrostatic repulsion and that FH enables proteolytic degradation of C3b by providing a binding platform for protease factor I while stabilizing the overall domain arrangement of C3b. Our results offer general models for complement regulation and provide structural explanations for disease-related mutations in the genes encoding both FH and C3b.

Indexed as

Protein Structure, TertiaryBinding SitesComplement C3bComplement Factor HCrystallography, X-RayHumansMacromolecular SubstancesModels, MolecularMutationProtein BindingComplement C3bComplement Factor HMacromolecular Substances

Identifiers

PMID19503104
PMCPMC2713992
OpenAlexW2125750727

What OpenQuestion holds

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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.