2BZM

Solution structure of the primary host recognition region of complement factor H


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 26 
  • Selection Criteria: LOWEST OVERALL ENERGY 

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This is version 1.2 of the entry. See complete history


Literature

Disease-Associated Sequence Variations Congregate in a Polyanion Recognition Patch on Human Factor H Revealed in Three-Dimensional Structure.

Herbert, A.P.Uhrin, D.Lyon, M.Pangburn, M.K.Barlow, P.N.

(2006) J Biol Chem 281: 16512

  • DOI: 10.1074/jbc.M513611200
  • Primary Citation of Related Structures:  
    2BZM

  • PubMed Abstract: 
  • Mutations and polymorphisms in the regulator of complement activation, factor H, have been linked to atypical hemolytic uremic syndrome (aHUS), membranoproliferative glomerulonephritis, and age-related macular degeneration. Many aHUS patients carry mutations in the two C-terminal modules of factor H, which normally confer upon this abundant 155-kDa plasma glycoprotein its ability to selectively bind self-surfaces and prevent them from inappropriately triggering the complement cascade via the alternative pathway ...

    Mutations and polymorphisms in the regulator of complement activation, factor H, have been linked to atypical hemolytic uremic syndrome (aHUS), membranoproliferative glomerulonephritis, and age-related macular degeneration. Many aHUS patients carry mutations in the two C-terminal modules of factor H, which normally confer upon this abundant 155-kDa plasma glycoprotein its ability to selectively bind self-surfaces and prevent them from inappropriately triggering the complement cascade via the alternative pathway. In the current study, the three-dimensional solution structure of the C-terminal module pair of factor H has been determined. A binding site for a fully sulfated heparin-derived tetrasaccharide has been delineated using chemical shift mapping and the C3d/C3b-binding site inferred from sequence comparisons and computational docking. The resultant information allows assessment of the likely consequences of aHUS-associated amino acid substitutions in this critical region of factor H. It is striking that, excepting those likely to perturb the three-dimensional structure, aHUS-associated missense mutations congregate in the polyanion-binding site delineated in this study, thus potentially disrupting a vital mechanism for control of complement on self-surfaces in the microvasculature of the kidney. It is intriguing that a single nucleotide polymorphism predisposing to age-related macular degeneration occupies another region of factor H that harbors a polyanion-binding site.


    Organizational Affiliation

    Edinburgh Biomolecular NMR Unit, University of Edinburgh, West mains Road, Edinburgh EH9 3JJ, United Kingdom.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
COMPLEMENT FACTOR HA129Homo sapiensMutation(s): 0 
Gene Names: CFHHFHF1HF2
UniProt & NIH Common Fund Data Resources
Find proteins for P08603 (Homo sapiens)
Explore P08603 
Go to UniProtKB:  P08603
PHAROS:  P08603
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 26 
  • Selection Criteria: LOWEST OVERALL ENERGY 
  • OLDERADO: 2BZM Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-03-22
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance