View source for 7chp


==Crystal structure of SARS-CoV-2 antibody P5A-3C8 with RBD==
<StructureSection load='7chp' size='340' side='right'caption='[[7chp]], [[Resolution|resolution]] 2.36&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7chp]] 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=7CHP OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7CHP 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]] 2.357&#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=7chp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7chp OCA], [https://pdbe.org/7chp PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7chp RCSB], [https://www.ebi.ac.uk/pdbsum/7chp PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7chp ProSAT]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Neutralizing antibodies (nAbs) to SARS-CoV-2 hold powerful potentials for clinical interventions against COVID-19 disease. However, their common genetic and biologic features remain elusive. Here we interrogate a total of 165 antibodies from eight COVID-19 patients, and find that potent nAbs from different patients have disproportionally high representation of IGHV3-53/3-66 usage, and therefore termed as public antibodies. Crystal structural comparison of these antibodies reveals they share similar angle of approach to RBD, overlap in buried surface and binding residues on RBD, and have substantial spatial clash with receptor angiotensin-converting enzyme-2 (ACE2) in binding to RBD. Site-directed mutagenesis confirms these common binding features although some minor differences are found. One representative antibody, P5A-3C8, demonstrates extraordinarily protective efficacy in a golden Syrian hamster model against SARS-CoV-2 infection. However, virus escape analysis identifies a single natural mutation in RBD, namely K417N found in B.1.351 variant from South Africa, abolished the neutralizing activity of these public antibodies. The discovery of public antibodies and shared escape mutation highlight the intricate relationship between antibody response and SARS-CoV-2, and provide critical reference for the development of antibody and vaccine strategies to overcome the antigenic variation of SARS-CoV-2.

Potent and protective IGHV3-53/3-66 public antibodies and their shared escape mutant on the spike of SARS-CoV-2.,Zhang Q, Ju B, Ge J, Chan JF, Cheng L, Wang R, Huang W, Fang M, Chen P, Zhou B, Song S, Shan S, Yan B, Zhang S, Ge X, Yu J, Zhao J, Wang H, Liu L, Lv Q, Fu L, Shi X, Yuen KY, Liu L, Wang Y, Chen Z, Zhang L, Wang X, Zhang Z Nat Commun. 2021 Jul 9;12(1):4210. doi: 10.1038/s41467-021-24514-w. PMID:34244522<ref>PMID:34244522</ref>

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

==See Also==
*[[Antibody 3D structures|Antibody 3D structures]]
*[[Spike protein 3D structures|Spike protein 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Severe acute respiratory syndrome coronavirus 2]]
[[Category: Ge J]]
[[Category: Wang R]]
[[Category: Wang X]]
[[Category: Zhang L]]
[[Category: Zhang Q]]