View source for 7l90


==BG505 SOSIP.v5.2 N241/N289 in complex with the polyclonal Fab pAbC-8 from animal Rh.33311 (Wk26 time point)==
<StructureSection load='7l90' size='340' side='right'caption='[[7l90]], [[Resolution|resolution]] 4.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7l90]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Human_immunodeficiency_virus_1 Human immunodeficiency virus 1] and [https://en.wikipedia.org/wiki/Macaca_mulatta Macaca mulatta]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7L90 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7L90 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 4.5&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <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=7l90 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7l90 OCA], [https://pdbe.org/7l90 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7l90 RCSB], [https://www.ebi.ac.uk/pdbsum/7l90 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7l90 ProSAT]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Engineered ectodomain trimer immunogens based on BG505 envelope glycoprotein are widely utilized as components of HIV vaccine development platforms. In this study, we used rhesus macaques to evaluate the immunogenicity of several stabilized BG505 SOSIP constructs both as free trimers and presented on a nanoparticle. We applied a cryoEM-based method for high-resolution mapping of polyclonal antibody responses elicited in immunized animals (cryoEMPEM). Mutational analysis coupled with neutralization assays were used to probe the neutralization potential at each epitope. We demonstrate that cryoEMPEM data can be used for rapid, high-resolution analysis of polyclonal antibody responses without the need for monoclonal antibody isolation. This approach allowed to resolve structurally distinct classes of antibodies that bind overlapping sites. In addition to comprehensive mapping of commonly targeted neutralizing and non-neutralizing epitopes in BG505 SOSIP immunogens, our analysis revealed that epitopes comprising engineered stabilizing mutations and of partially occupied glycosylation sites can be immunogenic.

Polyclonal antibody responses to HIV Env immunogens resolved using cryoEM.,Antanasijevic A, Sewall LM, Cottrell CA, Carnathan DG, Jimenez LE, Ngo JT, Silverman JB, Groschel B, Georgeson E, Bhiman J, Bastidas R, LaBranche C, Allen JD, Copps J, Perrett HR, Rantalainen K, Cannac F, Yang YR, de la Pena AT, Rocha RF, Berndsen ZT, Baker D, King NP, Sanders RW, Moore JP, Crotty S, Crispin M, Montefiori DC, Burton DR, Schief WR, Silvestri G, Ward AB Nat Commun. 2021 Aug 10;12(1):4817. doi: 10.1038/s41467-021-25087-4. PMID:34376662<ref>PMID:34376662</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7l90" style="background-color:#fffaf0;"></div>

==See Also==
*[[Antibody 3D structures|Antibody 3D structures]]
*[[Gp120 3D structures|Gp120 3D structures]]
*[[Gp41 3D Structures|Gp41 3D Structures]]
*[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Human immunodeficiency virus 1]]
[[Category: Large Structures]]
[[Category: Macaca mulatta]]
[[Category: Antanasijevic A]]
[[Category: Sewall LM]]
[[Category: Ward AB]]