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==Structure of mouse Va14Vb8.2NKT TCR-mouse CD1d-a-C-Galactosylceramide complex==
==Structure of mouse Va14Vb8.2NKT TCR-mouse CD1d-a-C-Galactosylceramide complex==
<StructureSection load='3tn0' size='340' side='right' caption='[[3tn0]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
<StructureSection load='3tn0' size='340' side='right' caption='[[3tn0]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[3tn0]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3TN0 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3TN0 FirstGlance]. <br>
<table><tr><td colspan='2'>[[3tn0]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human] and [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3TN0 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3TN0 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=QUX:N-[(3S,4S,5R)-4,5-DIHYDROXY-1-[(2R,3R,4R,5R,6R)-3,4,5-TRIHYDROXY-6-(HYDROXYMETHYL)OXAN-2-YL]NONADECAN-3-YL]HEXACOSANAMIDE'>QUX</scene></td></tr>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=QUX:N-[(3S,4S,5R)-4,5-DIHYDROXY-1-[(2R,3R,4R,5R,6R)-3,4,5-TRIHYDROXY-6-(HYDROXYMETHYL)OXAN-2-YL]NONADECAN-3-YL]HEXACOSANAMIDE'>QUX</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3qux|3qux]]</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3qux|3qux]]</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Cd1d1, Cd1.1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus]), B2m, RP23-34E24.5-001, mCG_11606 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus])</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Cd1d1, Cd1.1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice]), B2m, RP23-34E24.5-001, mCG_11606 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice])</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3tn0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3tn0 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3tn0 RCSB], [http://www.ebi.ac.uk/pdbsum/3tn0 PDBsum]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3tn0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3tn0 OCA], [http://pdbe.org/3tn0 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3tn0 RCSB], [http://www.ebi.ac.uk/pdbsum/3tn0 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3tn0 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/CD1D1_MOUSE CD1D1_MOUSE]] Antigen-presenting protein that binds self and non-self glycolipids and presents them to T-cell receptors on natural killer T-cells.<ref>PMID:11754812</ref> <ref>PMID:16314439</ref> <ref>PMID:16007091</ref>  [[http://www.uniprot.org/uniprot/Q91XJ8_MOUSE Q91XJ8_MOUSE]] Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system.  
[[http://www.uniprot.org/uniprot/CD1D1_MOUSE CD1D1_MOUSE]] Antigen-presenting protein that binds self and non-self glycolipids and presents them to T-cell receptors on natural killer T-cells.<ref>PMID:11754812</ref> <ref>PMID:16314439</ref> <ref>PMID:16007091</ref>  [[http://www.uniprot.org/uniprot/B2MG_MOUSE B2MG_MOUSE]] Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system.  
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
<div class="pdbe-citations 3tn0" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Mus musculus]]
[[Category: Human]]
[[Category: Lk3 transgenic mice]]
[[Category: Patel, O]]
[[Category: Patel, O]]
[[Category: Rossjohn, J]]
[[Category: Rossjohn, J]]

Revision as of 13:58, 4 August 2016

Structure of mouse Va14Vb8.2NKT TCR-mouse CD1d-a-C-Galactosylceramide complexStructure of mouse Va14Vb8.2NKT TCR-mouse CD1d-a-C-Galactosylceramide complex

Structural highlights

3tn0 is a 4 chain structure with sequence from Human and Lk3 transgenic mice. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:,
Gene:Cd1d1, Cd1.1 (LK3 transgenic mice), B2m, RP23-34E24.5-001, mCG_11606 (LK3 transgenic mice)
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[CD1D1_MOUSE] Antigen-presenting protein that binds self and non-self glycolipids and presents them to T-cell receptors on natural killer T-cells.[1] [2] [3] [B2MG_MOUSE] Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system.

Publication Abstract from PubMed

NKT cells respond to a variety of CD1d-restricted glycolipid Ags that are structurally related to the prototypic Ag alpha-galactosylceramide (alpha-GalCer). A modified analog of alpha-GalCer with a carbon-based glycosidic linkage (alpha-C-GalCer) has generated great interest because of its apparent ability to promote prolonged, Th1-biased immune responses. In this study, we report the activation of spleen NKT cells to alpha-C-GalCer, and related C-glycoside ligands, is weaker than that of alpha-GalCer. Furthermore, the Vbeta8.2 and Vbeta7 NKT TCR affinity for CD1d-alpha-C-GalCer, and some related analogs, is approximately 10-fold lower than that for the NKT TCR-CD1d-alpha-GalCer interaction. Nevertheless, the crystal structure of the Vbeta8.2 NKT TCR-CD1d-alpha-C-GalCer complex is similar to that of the corresponding NKT TCR-CD1d-alpha-GalCer complex, although subtle differences at the interface provide a basis for understanding the lower affinity of the NKT TCR-CD1d-alpha-C-GalCer interaction. Our findings support the concept that for CD1d-restricted NKT cells, altered glycolipid ligands can promote markedly different responses while adopting similar TCR-docking topologies.

NKT TCR recognition of CD1d-alpha-C-galactosylceramide.,Patel O, Cameron G, Pellicci DG, Liu Z, Byun HS, Beddoe T, McCluskey J, Franck RW, Castano AR, Harrak Y, Llebaria A, Bittman R, Porcelli SA, Godfrey DI, Rossjohn J J Immunol. 2011 Nov 1;187(9):4705-13. Epub 2011 Sep 30. PMID:21964029[4]

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

See Also

References

  1. ↑ Jayawardena-Wolf J, Benlagha K, Chiu YH, Mehr R, Bendelac A. CD1d endosomal trafficking is independently regulated by an intrinsic CD1d-encoded tyrosine motif and by the invariant chain. Immunity. 2001 Dec;15(6):897-908. PMID:11754812
  2. ↑ Zajonc DM, Maricic I, Wu D, Halder R, Roy K, Wong CH, Kumar V, Wilson IA. Structural basis for CD1d presentation of a sulfatide derived from myelin and its implications for autoimmunity. J Exp Med. 2005 Dec 5;202(11):1517-26. Epub 2005 Nov 28. PMID:16314439 doi:10.1084/jem.20051625
  3. ↑ Zajonc DM, Cantu C 3rd, Mattner J, Zhou D, Savage PB, Bendelac A, Wilson IA, Teyton L. Structure and function of a potent agonist for the semi-invariant natural killer T cell receptor. Nat Immunol. 2005 Aug;6(8):810-8. Epub 2005 Jul 10. PMID:16007091 doi:10.1038/ni1224
  4. ↑ Patel O, Cameron G, Pellicci DG, Liu Z, Byun HS, Beddoe T, McCluskey J, Franck RW, Castano AR, Harrak Y, Llebaria A, Bittman R, Porcelli SA, Godfrey DI, Rossjohn J. NKT TCR recognition of CD1d-alpha-C-galactosylceramide. J Immunol. 2011 Nov 1;187(9):4705-13. Epub 2011 Sep 30. PMID:21964029 doi:10.4049/jimmunol.1100794

3tn0, resolution 3.20Å

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