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[[ | ==Crystal structure of the mouse CD1d-lysosulfatide-Hy19.3 TCR complex== | ||
<StructureSection load='4elm' size='340' side='right' caption='[[4elm]], [[Resolution|resolution]] 3.48Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4elm]] is a 8 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=4ELM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4ELM FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=PLM:PALMITIC+ACID'>PLM</scene>, <scene name='pdbligand=SGF:(2S,3R,4E)-2-AMINO-3-HYDROXYOCTADEC-4-EN-1-YL+3-O-SULFO-BETA-D-GALACTOPYRANOSIDE'>SGF</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene></td></tr> | |||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4elk|4elk]]</td></tr> | |||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Cd1.1, CD1d, Cd1d1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus]), B2m, beta-2-microglobulin, mCG_11606, RP23-34E24.5-001 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus]), Valpha1 (mouse variable domain, human constant domain ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus]), Vbeta16 (mouse variable domain, human constant domain) ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus])</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=4elm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4elm OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4elm RCSB], [http://www.ebi.ac.uk/pdbsum/4elm PDBsum]</span></td></tr> | |||
</table> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Glycolipids presented by the major histocompatibility complex (MHC) class I homolog CD1d are recognized by natural killer T cells (NKT cells) characterized by either a semi-invariant T cell antigen receptor (TCR) repertoire (type I NKT cells or iNKT cells) or a relatively variable TCR repertoire (type II NKT cells). Here we describe the structure of a type II NKT cell TCR in complex with CD1d-lysosulfatide. Both TCR alpha-chains and TCR beta-chains made contact with the CD1d molecule with a diagonal footprint, typical of MHC-TCR interactions, whereas the antigen was recognized exclusively with a single TCR chain, similar to the iNKT cell TCR. Type II NKT cell TCRs, therefore, recognize CD1d-sulfatide complexes by a distinct recognition mechanism characterized by the TCR-binding features of both iNKT cells and conventional peptide-reactive T cells. | |||
Type II natural killer T cells use features of both innate-like and conventional T cells to recognize sulfatide self antigens.,Girardi E, Maricic I, Wang J, Mac TT, Iyer P, Kumar V, Zajonc DM Nat Immunol. 2012 Sep;13(9):851-6. doi: 10.1038/ni.2371. Epub 2012 Jul 22. PMID:22820602<ref>PMID:22820602</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
==See Also== | ==See Also== | ||
*[[Beta-2 microglobulin|Beta-2 microglobulin]] | *[[Beta-2 microglobulin|Beta-2 microglobulin]] | ||
*[[CD1|CD1]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
[[Category: Girardi, E | [[Category: Girardi, E]] | ||
[[Category: Iyer, P | [[Category: Iyer, P]] | ||
[[Category: Kumar, V | [[Category: Kumar, V]] | ||
[[Category: Mac, T T | [[Category: Mac, T T]] | ||
[[Category: Maricic, I | [[Category: Maricic, I]] | ||
[[Category: Wang, J | [[Category: Wang, J]] | ||
[[Category: Zajonc, D M | [[Category: Zajonc, D M]] | ||
[[Category: Antigen presentation]] | [[Category: Antigen presentation]] | ||
[[Category: Glycolipid]] | [[Category: Glycolipid]] | ||
[[Category: Immune system]] | [[Category: Immune system]] | ||
[[Category: Nkt cell]] | [[Category: Nkt cell]] | ||
Revision as of 17:05, 9 December 2014
Crystal structure of the mouse CD1d-lysosulfatide-Hy19.3 TCR complex
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