3huj

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Crystal structure of human CD1d-alpha-Galactosylceramide in complex with semi-invariant NKT cell receptor

Structural highlights

3huj is a 8 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.5Å
Ligands:AGH, BMA, MG, NAG, NDG
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CD1D_HUMAN Antigen-presenting protein that binds self and non-self glycolipids and presents them to T-cell receptors on natural killer T-cells.[1]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

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.

Differential recognition of CD1d-alpha-galactosyl ceramide by the V beta 8.2 and V beta 7 semi-invariant NKT T cell receptors.,Pellicci DG, Patel O, Kjer-Nielsen L, Pang SS, Sullivan LC, Kyparissoudis K, Brooks AG, Reid HH, Gras S, Lucet IS, Koh R, Smyth MJ, Mallevaey T, Matsuda JL, Gapin L, McCluskey J, Godfrey DI, Rossjohn J Immunity. 2009 Jul 17;31(1):47-59. PMID:19592275[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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Citations
44 reviews cite this structure
Raising the NKT cell family.
Godfrey et al. (2010)
43 more
106 other articles
No citations found

See Also

References

  1. ↑ Chen X, Wang X, Keaton JM, Reddington F, Illarionov PA, Besra GS, Gumperz JE. Distinct endosomal trafficking requirements for presentation of autoantigens and exogenous lipids by human CD1d molecules. J Immunol. 2007 May 15;178(10):6181-90. PMID:17475845
  2. ↑ Pellicci DG, Patel O, Kjer-Nielsen L, Pang SS, Sullivan LC, Kyparissoudis K, Brooks AG, Reid HH, Gras S, Lucet IS, Koh R, Smyth MJ, Mallevaey T, Matsuda JL, Gapin L, McCluskey J, Godfrey DI, Rossjohn J. Differential recognition of CD1d-alpha-galactosyl ceramide by the V beta 8.2 and V beta 7 semi-invariant NKT T cell receptors. Immunity. 2009 Jul 17;31(1):47-59. PMID:19592275 doi:10.1016/j.immuni.2009.04.018

Contents


PDB ID 3huj

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OCA

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