3UDW

Crystal structure of the immunoreceptor TIGIT in complex with Poliovirus receptor (PVR/CD155/necl-5) D1 domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.903 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.251 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of TIGIT immunoreceptor bound to poliovirus receptor reveals a cell-cell adhesion and signaling mechanism that requires cis-trans receptor clustering.

Stengel, K.F.Harden-Bowles, K.Yu, X.Rouge, L.Yin, J.Comps-Agrar, L.Wiesmann, C.Bazan, J.F.Eaton, D.L.Grogan, J.L.

(2012) Proc.Natl.Acad.Sci.USA 109: 5399-5404

  • DOI: 10.1073/pnas.1120606109
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Nectins (nectin1-4) and Necls [nectin-like (Necl1-5)] are Ig superfamily cell adhesion molecules that regulate cell differentiation and tissue morphogenesis. Adherens junction formation and subsequent cell-cell signaling is initiated by the assembly ...

    Nectins (nectin1-4) and Necls [nectin-like (Necl1-5)] are Ig superfamily cell adhesion molecules that regulate cell differentiation and tissue morphogenesis. Adherens junction formation and subsequent cell-cell signaling is initiated by the assembly of higher-order receptor clusters of cognate molecules on juxtaposed cells. However, the structural and mechanistic details of signaling cluster formation remain unclear. Here, we report the crystal structure of poliovirus receptor (PVR)/Nectin-like-5/CD155) in complex with its cognate immunoreceptor ligand T-cell-Ig-and-ITIM-domain (TIGIT). The TIGIT/PVR interface reveals a conserved specific "lock-and-key" interaction. Notably, two TIGIT/PVR dimers assemble into a heterotetramer with a core TIGIT/TIGIT cis-homodimer, each TIGIT molecule binding one PVR molecule. Structure-guided mutations that disrupt the TIGIT/TIGIT interface limit both TIGIT/PVR-mediated cell adhesion and TIGIT-induced PVR phosphorylation in primary dendritic cells. Our data suggest a cis-trans receptor clustering mechanism for cell adhesion and signaling by the TIGIT/PVR complex and provide structural insights into how the PVR family of immunoregulators function.


    Organizational Affiliation

    Department of Structural Biology, Genentech, Inc., South San Francisco, CA 94080, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
T cell immunoreceptor with Ig and ITIM domains
A, B
110Homo sapiensMutation(s): 0 
Gene Names: TIGIT (VSIG9, VSTM3)
Find proteins for Q495A1 (Homo sapiens)
Go to Gene View: TIGIT
Go to UniProtKB:  Q495A1
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Poliovirus receptor
C, D
118Homo sapiensMutation(s): 0 
Gene Names: PVR (PVS)
Find proteins for P15151 (Homo sapiens)
Go to Gene View: PVR
Go to UniProtKB:  P15151
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download SDF File 
Download CCD File 
C, D
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.903 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.251 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 95.606α = 90.00
b = 95.606β = 90.00
c = 149.614γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
HKL-2000data scaling
HKL-2000data collection
HKL-2000data reduction
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-03-14
    Type: Initial release
  • Version 1.1: 2012-03-28
    Type: Database references
  • Version 1.2: 2012-04-25
    Type: Database references