4ozf: Difference between revisions

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'''Unreleased structure'''


The entry 4ozf is ON HOLD
==JR5.1 protein complex==
<StructureSection load='4ozf' size='340' side='right'caption='[[4ozf]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4ozf]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Triticum_aestivum Triticum aestivum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4OZF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4OZF FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.7&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4ozf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4ozf OCA], [https://pdbe.org/4ozf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4ozf RCSB], [https://www.ebi.ac.uk/pdbsum/4ozf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4ozf ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q2YD82_HUMAN Q2YD82_HUMAN]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Celiac disease is a T cell-mediated disease induced by dietary gluten, a component of which is gliadin. 95% of individuals with celiac disease carry the HLA (human leukocyte antigen)-DQ2 locus. Here we determined the T-cell receptor (TCR) usage and fine specificity of patient-derived T-cell clones specific for two epitopes from wheat gliadin, DQ2.5-glia-alpha1a and DQ2.5-glia-alpha2. We determined the ternary structures of four distinct biased TCRs specific for those epitopes. All three TCRs specific for DQ2.5-glia-alpha2 docked centrally above HLA-DQ2, which together with mutagenesis and affinity measurements provided a basis for the biased TCR usage. A non-germline encoded arginine residue within the CDR3beta loop acted as the lynchpin within this common docking footprint. Although the TCRs specific for DQ2.5-glia-alpha1a and DQ2.5-glia-alpha2 docked similarly, their interactions with the respective gliadin determinants differed markedly, thereby providing a basis for epitope specificity.


Authors: Petersen, J., Reid, H.H., Rossjohn, J.
T-cell receptor recognition of HLA-DQ2-gliadin complexes associated with celiac disease.,Petersen J, Montserrat V, Mujico JR, Loh KL, Beringer DX, van Lummel M, Thompson A, Mearin ML, Schweizer J, Kooy-Winkelaar Y, van Bergen J, Drijfhout JW, Kan WT, La Gruta NL, Anderson RP, Reid HH, Koning F, Rossjohn J Nat Struct Mol Biol. 2014 May;21(5):480-8. doi: 10.1038/nsmb.2817. Epub 2014 Apr , 28. PMID:24777060<ref>PMID:24777060</ref>


Description: JR5.1 protein complex
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4ozf" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Gluten|Gluten]]
*[[T-cell receptor 3D structures|T-cell receptor 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Triticum aestivum]]
[[Category: Petersen J]]
[[Category: Reid HH]]
[[Category: Rossjohn J]]

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