4J6L

Crystal structure of calcium2+-free wild-type CD23 lectin domain (crystal form C)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.15 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.212 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Conformational plasticity at the IgE-binding site of the B-cell receptor CD23.

Dhaliwal, B.Pang, M.O.Yuan, D.Yahya, N.Fabiane, S.M.McDonnell, J.M.Gould, H.J.Beavil, A.J.Sutton, B.J.

(2013) Mol.Immunol. 56: 693-697

  • DOI: 10.1016/j.molimm.2013.07.005
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • IgE antibodies play a central role in allergic disease. They recognize allergens via their Fab regions, whilst their effector functions are controlled through interactions of the Fc region with two principal cell surface receptors, FcɛRI and CD23. Cr ...

    IgE antibodies play a central role in allergic disease. They recognize allergens via their Fab regions, whilst their effector functions are controlled through interactions of the Fc region with two principal cell surface receptors, FcɛRI and CD23. Crosslinking of FcɛRI-bound IgE on mast cells and basophils by allergen initiates an immediate inflammatory response, while the interaction of IgE with CD23 on B-cells regulates IgE production. We have determined the structures of the C-type lectin "head" domain of CD23 from seven crystal forms. The thirty-five independent structures reveal extensive conformational plasticity in two loops that are critical for IgE binding.


    Organizational Affiliation

    King's College London, Randall Division of Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, London SE1 1UL, UK; MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK. Electronic address: bal.dhaliwal@kcl.ac.uk.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Low affinity immunoglobulin epsilon Fc receptor
A, B, C, D, E, F, G, H
143Homo sapiensMutation(s): 0 
Gene Names: FCER2 (CD23A, CLEC4J, FCE2, IGEBF)
Find proteins for P06734 (Homo sapiens)
Go to Gene View: FCER2
Go to UniProtKB:  P06734
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.15 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.212 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 52.260α = 75.28
b = 64.330β = 82.39
c = 112.200γ = 89.95
Software Package:
Software NamePurpose
GDAdata collection
PHASERphasing
BUSTERrefinement
BUSTER-TNTrefinement
SCALEPACKdata scaling
PDB_EXTRACTdata extraction
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-08-28
    Type: Initial release
  • Version 1.1: 2017-11-15
    Type: Refinement description