View source for 7n1b


==SARS-CoV-2 RLQ peptide binds to HLA-A2==
<StructureSection load='7n1b' size='340' side='right'caption='[[7n1b]], [[Resolution|resolution]] 2.81&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7n1b]] is a 6 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=7N1B OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7N1B 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]] 2.81&#8491;</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=7n1b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7n1b OCA], [https://pdbe.org/7n1b PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7n1b RCSB], [https://www.ebi.ac.uk/pdbsum/7n1b PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7n1b ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A0A140T913_HUMAN A0A140T913_HUMAN] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
T cells play a vital role in combatting SARS-CoV-2 and forming long-term memory responses. Whereas extensive structural information is available on neutralizing antibodies against SARS-CoV-2, such information on SARS-CoV-2-specific T-cell receptors (TCRs) bound to their peptide-MHC targets is lacking. Here we determine the structures of a public and a private TCR from COVID-19 convalescent patients in complex with HLA-A2 and two SARS-CoV-2 spike protein epitopes (YLQ and RLQ). The structures reveal the basis for selection of particular TRAV and TRBV germline genes by the public but not the private TCR, and for the ability of the TCRs to recognize natural variants of RLQ but not YLQ. Neither TCR recognizes homologous epitopes from human seasonal coronaviruses. By elucidating the mechanism for TCR recognition of an immunodominant yet variable epitope (YLQ) and a conserved but less commonly targeted epitope (RLQ), this study can inform prospective efforts to design vaccines to elicit pan-coronavirus immunity.

Structural assessment of HLA-A2-restricted SARS-CoV-2 spike epitopes recognized by public and private T-cell receptors.,Wu D, Kolesnikov A, Yin R, Guest JD, Gowthaman R, Shmelev A, Serdyuk Y, Dianov DV, Efimov GA, Pierce BG, Mariuzza RA Nat Commun. 2022 Jan 10;13(1):19. doi: 10.1038/s41467-021-27669-8. PMID:35013235<ref>PMID:35013235</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7n1b" 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: Mariuzza RA]]
[[Category: Wu D]]