1H03

Human CD55 domains 3 & 4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Mapping Cd55 Function. The Structure of Two Pathogen-Binding Domains at 1.7 A

Williams, P.Chaudhry, Y.Goodfellow, I.Billington, J.Powell, R.Spiller, O.Evans, D.J.Lea, S.M.

(2003) J.Biol.Chem. 278: 10691

  • DOI: 10.1074/jbc.M212561200
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Decay-accelerating factor (CD55), a regulator of the alternative and classical pathways of complement activation, is expressed on all serum-exposed cells. It is used by pathogens, including many enteroviruses and uropathogenic Escherichia coli, as a ...

    Decay-accelerating factor (CD55), a regulator of the alternative and classical pathways of complement activation, is expressed on all serum-exposed cells. It is used by pathogens, including many enteroviruses and uropathogenic Escherichia coli, as a receptor prior to infection. We describe the x-ray structure of a pathogen-binding fragment of human CD55 at 1.7 A resolution containing two of the three domains required for regulation of human complement. We have used mutagenesis to map biological functions onto the molecule; decay-accelerating activity maps to a single face of the molecule, whereas bacterial and viral pathogens recognize a variety of different sites on CD55.


    Related Citations: 
    • Determination of the Affinity and Kinetic Constants for the Interaction between the Human Virus Echovirus 11 and its Cellular Receptor, Cd55
      Lea, S.M.,Powell, R.,Mckee, T.,Evans, D.J.,Brown, D.J.,Stuart, D.I.,Van Der Merwe, A.
      (1998) J.Biol.Chem. 273: 30443
    • Crystallization and Preliminary X-Ray Diffraction Analysis of a Biologically Active Fragment of Cd55
      Lea, S.M.,Powell, R.,Evans, D.J.
      (1999) Acta Crystallogr.,Sect.D D55: 1198


    Organizational Affiliation

    Laboratory of Molecular Biophysics, Department of Biochemistry, University of Oxford, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
COMPLEMENT DECAY-ACCELERATING FACTOR
P, Q
125Homo sapiensGene Names: CD55 (CR, DAF)
Find proteins for P08174 (Homo sapiens)
Go to Gene View: CD55
Go to UniProtKB:  P08174
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.191 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 38.620α = 110.48
b = 38.770β = 96.55
c = 45.330γ = 108.90
Software Package:
Software NamePurpose
SHARPphasing
MOSFLMdata reduction
CNSrefinement
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-03-20
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance