Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 14.35 kDa 
• Atom Count: 1006 
• Modelled Residue Count: 129 
• Deposited Residue Count: 129 
• Unique protein chains: 1

1NWV

SOLUTION STRUCTURE OF A FUNCTIONALLY ACTIVE COMPONENT OF DECAY ACCELERATING FACTOR

• PDB DOI: 10.2210/pdb1NWV/pdb
• BMRB: 5506

• Classification: BIOSYNTHETIC PROTEIN
• Organism(s): Homo sapiens
• Expression System: Komagataella pastoris
• Mutation(s): No 


• Deposited: 2003-02-07 Released: 2003-04-22 
• Deposition Author(s): Uhrinova, S., Lin, F., Ball, G., Bromek, K., Uhrin, D., Medof, M.E., Barlow, P.N.

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Experimental Data Snapshot

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

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

• PubMed: 12672958 
• 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. 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.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Complement decay-accelerating factor	A	129	Homo sapiens	Mutation(s): 0  Gene Names: DAF OR CR OR CD55, CD55, CR, DAF
UniProt & NIH Common Fund Data Resources
Find proteins for P08174 (Homo sapiens) Explore P08174  Go to UniProtKB:  P08174
PHAROS:  P08174

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

Entry History 

Deposition Data

• Deposited Date: 2003-02-07 
• Released Date: 2003-04-22 
Deposition Author(s): Uhrinova, S., Lin, F., Ball, G., Bromek, K., Uhrin, D., Medof, M.E., Barlow, P.N.

Revision History  

• 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