3HE7

Crystal structure of mouse CD1d-alpha-galactosylceramide with mouse Valpha14-Vbeta7 NKT TCR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.224 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Differential recognition of CD1d-alpha-galactosyl ceramide by the V beta 8.2 and V beta 7 semi-invariant NKT T cell receptors

Pellicci, D.G.Patel, O.Kjer-Nielsen, L.Pang, S.S.Sullivan, L.C.Kyparissoudis, K.Brooks, A.G.Reid, H.H.Gras, S.Lucet, I.S.Koh, R.Smyth, M.J.Mallevaey, T.Matsuda, J.L.Gapin, L.McCluskey, J.Godfrey, D.I.Rossjohn, J.

(2009) Immunity 31: 47-59

  • DOI: 10.1016/j.immuni.2009.04.018
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The semi-invariant natural killer T cell receptor (NKT TCR) recognizes CD1d-lipid antigens. Although the TCR alpha chain is typically invariant, the beta chain expression is more diverse, where three V beta chains are commonly expressed in mice. We r ...

    The semi-invariant natural killer T cell receptor (NKT TCR) recognizes CD1d-lipid antigens. Although the TCR alpha chain is typically invariant, the beta chain expression is more diverse, where three V beta chains are commonly expressed in mice. We report the structures of V alpha 14-V beta 8.2 and V alpha 14-V beta 7 NKT TCRs in complex with CD1d-alpha-galactosylceramide (alpha-GalCer) and the 2.5 A structure of the human NKT TCR-CD1d-alpha-GalCer complex. Both V beta 8.2 and V beta 7 NKT TCRs and the human NKT TCR ligated CD1d-alpha-GalCer in a similar manner, highlighting the evolutionarily conserved interaction. However, differences within the V beta domains of the V beta 8.2 and V beta 7 NKT TCR-CD1d complexes resulted in altered TCR beta-CD1d-mediated contacts and modulated recognition mediated by the invariant alpha chain. Mutagenesis studies revealed the differing contributions of V beta 8.2 and V beta 7 residues within the CDR2 beta loop in mediating contacts with CD1d. Collectively we provide a structural basis for the differential NKT TCR V beta usage in NKT cells.


    Organizational Affiliation

    Department of Microbiology and Immunology, University of Melbourne, Parkville, Victoria 3010, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
T-cell surface glycoprotein CD1d1
A
302Mus musculusMutation(s): 0 
Gene Names: Cd1d1 (Cd1.1)
Find proteins for P11609 (Mus musculus)
Go to UniProtKB:  P11609
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Beta-2 microglobulin
B
99Mus musculusMutation(s): 0 
Gene Names: B2m
Find proteins for P01887 (Mus musculus)
Go to UniProtKB:  P01887
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Valpha14(mouse variable domain, human constant domain)
C
207Homo sapiensMutation(s): 0 
Gene Names: TRAC (TCRA)
Find proteins for P01848 (Homo sapiens)
Go to UniProtKB:  P01848
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Vbeta7(mouse variable domain, human constant domain)
D
242N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
AGH
Query on AGH

Download SDF File 
Download CCD File 
A
N-{(1S,2R,3S)-1-[(ALPHA-D-GALACTOPYRANOSYLOXY)METHYL]-2,3-DIHYDROXYHEPTADECYL}HEXACOSANAMIDE
C50 H99 N O9
VQFKFAKEUMHBLV-BYSUZVQFSA-N
 Ligand Interaction
NAG
Query on NAG

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.224 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 58.229α = 90.00
b = 81.913β = 90.00
c = 243.253γ = 90.00
Software Package:
Software NamePurpose
ADSCdata collection
PHASERphasing
MOSFLMdata reduction
SCALAdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-07-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Non-polymer description, Version format compliance