3KGR

Crystal structure of the human leukocyte-associated Ig-like receptor-1 (LAIR-1)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.157 
  • R-Value Work: 0.123 
  • R-Value Observed: 0.124 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure and collagen-binding site of immune inhibitory receptor LAIR-1: unexpected implications for collagen binding by platelet receptor GPVI

Brondijk, T.H.C.de Ruiter, T.Ballering, J.Wienk, H.Lebbink, R.J.van Ingen, H.Boelens, R.Farndale, R.W.Meyaard, L.Huizinga, E.G.

(2010) Blood 115: 1364-1373

  • DOI: 10.1182/blood-2009-10-246322
  • Primary Citation of Related Structures:  
    3KGR

  • PubMed Abstract: 
  • Leukocyte-associated immunoglobulin-like receptor-1 (LAIR-1), one of the most widely spread immune receptors, attenuates immune cell activation when bound to specific sites in collagen. The collagen-binding domain of LAIR-1 is homologous to that of glyco ...

    Leukocyte-associated immunoglobulin-like receptor-1 (LAIR-1), one of the most widely spread immune receptors, attenuates immune cell activation when bound to specific sites in collagen. The collagen-binding domain of LAIR-1 is homologous to that of glycoprotein VI (GPVI), a collagen receptor crucial for platelet activation. Because LAIR-1 and GPVI also display overlapping collagen-binding specificities, a common structural basis for collagen recognition would appear likely. Therefore, it is crucial to gain insight into the molecular interaction of both receptors with their ligand to prevent unwanted cross-reactions during therapeutic intervention. We determined the crystal structure of LAIR-1 and mapped its collagen-binding site by nuclear magnetic resonance (NMR) titrations and mutagenesis. Our data identify R59, E61, and W109 as key residues for collagen interaction. These residues are strictly conserved in LAIR-1 and GPVI alike; however, they are located outside the previously proposed GPVI collagen-binding site. Our data provide evidence for an unanticipated mechanism of collagen recognition common to LAIR-1 and GPVI. This fundamental insight will contribute to the exploration of specific means of intervention in collagen-induced signaling in immunity and hemostasis.


    Organizational Affiliation

    Crystal and Structural Chemistry, Bijvoet Center for Biomolecular Research, Utrecht University, Utrecht, The Netherlands.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Leukocyte-associated immunoglobulin-like receptor 1 ABC106Homo sapiensMutation(s): 0 
Gene Names: LAIR1CD305
Find proteins for Q6GTX8 (Homo sapiens)
Explore Q6GTX8 
Go to UniProtKB:  Q6GTX8
NIH Common Fund Data Resources
PHAROS:  Q6GTX8
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download Ideal Coordinates CCD File 
B
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
GLY
Query on GLY

Download Ideal Coordinates CCD File 
B
GLYCINE
C2 H5 N O2
DHMQDGOQFOQNFH-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.157 
  • R-Value Work: 0.123 
  • R-Value Observed: 0.124 
  • Space Group: P 32
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 69.395α = 90
b = 69.395β = 90
c = 54.258γ = 120
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-12-22
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 1.2: 2012-04-11
    Changes: Database references