1NWV

SOLUTION STRUCTURE OF A FUNCTIONALLY ACTIVE COMPONENT OF DECAY ACCELERATING FACTOR


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 190 
  • Conformers Submitted: 42 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Solution structure of a functionally active fragment of decay-accelerating factor

Uhrinova, S.Lin, F.Ball, G.Bromek, K.Uhrin, D.Medof, M.E.Barlow, P.N.

(2003) Proc Natl Acad Sci U S A 100: 4718-4723

  • DOI: 10.1073/pnas.0730844100
  • Primary Citation of Related Structures:  
    1NWV

  • PubMed Abstract: 
  • The second and third modules of human decay accelerating factor (DAF) are necessary and sufficient to accelerate decay of the classical pathway (CP) convertase of complement. No structure of a mammalian protein with decay-accelerating activity has been available to date ...

    The second and third modules of human decay accelerating factor (DAF) are necessary and sufficient to accelerate decay of the classical pathway (CP) convertase of complement. No structure of a mammalian protein with decay-accelerating activity has been available to date. We therefore determined the solution structure of DAF modules 2 and 3 (DAF approximately 2,3). Structure-guided analysis of 24 mutants identified likely contact points between DAF and the CP convertase. Three (R96, R69, and a residue in the vicinity of L171) lie on DAF approximately 2,3's concave face. A fourth, consisting of K127 and nearby R100, is on the opposite face. Regions of module 3 remote from the semiflexible 2-3 interface seem not to be involved in binding to the CP convertase. DAF thus seems to occupy a groove on the CP convertase such that both faces of DAF close to the 2-3 junction (including a positively charged region that encircles the protein at this point) interact simultaneously. Alternative pathway convertase interactions with DAF require additional regions of CCP 3 lying away from the 2-3 interface, consistent with the established additional requirement of module 4 for alternative pathway regulation.


    Organizational Affiliation

    Edinburgh Protein Interaction Centre, University of Edinburgh, Edinburgh EH9 3JJ, Scotland.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Complement decay-accelerating factorA129Homo sapiensMutation(s): 0 
Gene Names: DAF OR CR OR CD55CD55CRDAF
UniProt & NIH Common Fund Data Resources
Find proteins for P08174 (Homo sapiens)
Explore P08174 
Go to UniProtKB:  P08174
PHAROS:  P08174
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP08174
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 190 
  • Conformers Submitted: 42 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 1NWV Olderado

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-04-22
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-23
    Changes: Data collection, Database references, Derived calculations