3ZD2

THE STRUCTURE OF THE TWO N-TERMINAL DOMAINS OF COMPLEMENT FACTOR H RELATED PROTEIN 1 SHOWS FORMATION OF A NOVEL DIMERISATION INTERFACE

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.99 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.221 
  • R-Value Observed: 0.222 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history. 


Literature

Dimerization of Complement Factor H-Related Proteins Modulates Complement Activation in Vivo.

Goicoechea De Jorge, E., Caesar, J.J.E., Malik, T.H., Patel, M., Colledge, M., Johnson, S., Hakobyan, S., Morgan, B.P., Harris, C.L., Pickering, M.C., Lea, S.M.

(2013) Proc Natl Acad Sci U S A 110: 4685

  • DOI: https://doi.org/10.1073/pnas.1219260110
  • Primary Citation of Related Structures:  
    3ZD1, 3ZD2

  • PubMed Abstract: 

    The complement system is a key component regulation influences susceptibility to age-related macular degeneration, meningitis, and kidney disease. Variation includes genomic rearrangements within the complement factor H-related (CFHR) locus. Elucidating the mechanism underlying these associations has been hindered by the lack of understanding of the biological role of CFHR proteins. Here we present unique structural data demonstrating that three of the CFHR proteins contain a shared dimerization motif and that this hitherto unrecognized structural property enables formation of both homodimers and heterodimers. Dimerization confers avidity for tissue-bound complement fragments and enables these proteins to efficiently compete with the physiological complement inhibitor, complement factor H (CFH), for ligand binding. Our data demonstrate that these CFHR proteins function as competitive antagonists of CFH to modulate complement activation in vivo and explain why variation in the CFHRs predisposes to disease.

    • Organizational Affiliation: 

    Centre for Complement and Inflammation Research, Department of Medicine, Imperial College, London W12 0NN, United Kingdom.


Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
COMPLEMENT FACTOR H-RELATED PROTEIN 1
A, B
125Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q03591 (Homo sapiens)
Explore Q03591 
Go to UniProtKB:  Q03591
PHAROS:  Q03591
GTEx:  ENSG00000244414 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ03591
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO
Download Ideal Coordinates CCD File 
C [auth A]
D [auth A]
E [auth A]
F [auth A]
G [auth A]
C [auth A],
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth B],
M [auth B],
N [auth B],
O [auth B],
P [auth B],
Q [auth B],
R [auth B]
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.99 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.221 
  • R-Value Observed: 0.222 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 45.27α = 90
b = 46.88β = 90
c = 111.66γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



View more in-depth experimental data
Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-03-13
    Type: Initial release
  • Version 1.1: 2013-03-27
    Changes: Database references
  • Version 1.2: 2013-04-03
    Changes: Database references
  • Version 1.3: 2023-12-20
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description