View source for 7kgq


==Crystal Structure of HLA-A*0201in complex with SARS-CoV-2 N222-230==
<StructureSection load='7kgq' size='340' side='right'caption='[[7kgq]], [[Resolution|resolution]] 1.34&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7kgq]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Severe_acute_respiratory_syndrome_coronavirus_2 Severe acute respiratory syndrome coronavirus 2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7KGQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7KGQ 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]] 1.34&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CD:CADMIUM+ION'>CD</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</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=7kgq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7kgq OCA], [https://pdbe.org/7kgq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7kgq RCSB], [https://www.ebi.ac.uk/pdbsum/7kgq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7kgq ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q861F7_HUMAN Q861F7_HUMAN] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
CD8+ T cells are crucial for anti-viral immunity; however, understanding T cell responses requires the identification of epitopes presented by human leukocyte antigens (HLA). To date, few SARS-CoV-2-specific CD8+ T cell epitopes have been described. Internal viral proteins are typically more conserved than surface proteins and are often the target of CD8+ T cells. Therefore, we have characterized eight peptides derived from the internal SARS-CoV-2 nucleocapsid protein predicted to bind HLA-A( *)02:01, the most common HLA molecule in the global population. We determined not all peptides could form a complex with HLA-A( *)02:01, and the six crystal structures determined revealed that some peptides adopted a mobile conformation. We therefore provide a molecular understanding of SARS-CoV-2 CD8+ T cell epitopes. Furthermore, we show that there is limited pre-existing CD8+ T cell response toward these epitopes in unexposed individuals. Together, these data show that SARS-CoV-2 nucleocapsid might not contain potent epitopes restricted to HLA-A( *)02:01.

The presentation of SARS-CoV-2 peptides by the common HLA-A( *)02:01 molecule.,Szeto C, Chatzileontiadou DSM, Nguyen AT, Sloane H, Lobos CA, Jayasinghe D, Halim H, Smith C, Riboldi-Tunnicliffe A, Grant EJ, Gras S iScience. 2021 Feb 19;24(2):102096. doi: 10.1016/j.isci.2021.102096. Epub 2021 , Jan 22. PMID:33521593<ref>PMID:33521593</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7kgq" style="background-color:#fffaf0;"></div>

==See Also==
*[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]]
*[[MHC 3D structures|MHC 3D structures]]
*[[MHC I 3D structures|MHC I 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Severe acute respiratory syndrome coronavirus 2]]
[[Category: Chatzileontiadou DSM]]
[[Category: Gras S]]
[[Category: Riboldi-Tunnicliffe A]]
[[Category: Szeto C]]