1E8I

HUMAN CD69 - TETRAGONAL FORM


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.248 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal Structure of the C-Type Lectin-Like Domain from the Human Hematopoietic Cell Receptor Cd69

Llera, A.S.Viedma, F.Sanchez-Madrid, F.Tormo, J.

(2001) J Biol Chem 276: 7312

  • DOI: 10.1074/jbc.M008573200
  • Primary Citation of Related Structures:  
    1E87, 1E8I

  • PubMed Abstract: 
  • CD69, one of the earliest specific antigens acquired during lymphoid activation, acts as a signal-transducing receptor involved in cellular activation events, including proliferation and induction of specific genes. CD69 belongs to a family of recept ...

    CD69, one of the earliest specific antigens acquired during lymphoid activation, acts as a signal-transducing receptor involved in cellular activation events, including proliferation and induction of specific genes. CD69 belongs to a family of receptors that modulate the immune response and whose genes are clustered in the natural killer (NK) gene complex. The extracellular portion of these receptors represent a subfamily of C-type lectin-like domains (CTLDs), which are divergent from true C-type lectins and are referred to as NK-cell domains (NKDs). We have determined the three-dimensional structure of human CD69 NKD in two different crystal forms. CD69 NKD adopts the canonical CTLD fold but lacks the features involved in Ca(2+) and carbohydrate binding by C-type lectins. CD69 NKD dimerizes noncovalently, both in solution and in crystalline state. The dimer interface consists of a hydrophobic, loosely packed core, surrounded by polar interactions, including an interdomain beta sheet. The intersubunit core shows certain structural plasticity that may facilitate conformational rearrangements for binding to ligands. The surface equivalent to the binding site of other members of the CTLD superfamily reveals a hydrophobic patch surrounded by conserved charged residues that probably constitutes the CD69 ligand-binding site.


    Organizational Affiliation

    Department of Macromolecular Structure, Centro Nacional de Biotecnologia, Universidad Autónoma de Madrid, 28049 Madrid, Spain.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
EARLY ACTIVATION ANTIGEN CD69A, B118Homo sapiensMutation(s): 0 
Gene Names: CD69CLEC2C
Find proteins for Q07108 (Homo sapiens)
Explore Q07108 
Go to UniProtKB:  Q07108
NIH Common Fund Data Resources
PHAROS  Q07108
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.248 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 69.629α = 90
b = 69.629β = 90
c = 118.588γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2000-09-21 
  • Released Date: 2000-09-26 
  • Deposition Author(s): Tormo, J.

Revision History 

  • Version 1.0: 2000-09-26
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance