OCA at 07:09, 11 October 2023

OCA — Wed, 11 Oct 2023 07:09:26 GMT

←Older revision		Revision as of 07:09, 11 October 2023
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-	'''Unreleased structure'''

-	~~The entry~~ 6oej is ~~ON HOLD until Paper~~ Publication	+	==CRYSTAL STRUCTURE OF THE NON-NEUTRALIZING AND ADCC-POTENT ANTIBODY C11 IN COMPLEX WITH HIV-1 CLADE A/E GP120==
		+	<StructureSection load='6oej' size='340' side='right'caption='[[6oej]], [[Resolution\|resolution]] 3.45Å' scene=''>
		+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[6oej]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Human_immunodeficiency_virus_1 Human immunodeficiency virus 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6OEJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6OEJ 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]] 3.45Å</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=FUC:ALPHA-L-FUCOSE'>FUC</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=6oej FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6oej OCA], [https://pdbe.org/6oej PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6oej RCSB], [https://www.ebi.ac.uk/pdbsum/6oej PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6oej ProSAT]</span></td></tr>
		+	</table>
		+	== Function ==
		+	[https://www.uniprot.org/uniprot/A0A0M3KKW9_9HIV1 A0A0M3KKW9_9HIV1]
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	Antibodies (Abs) specific for CD4-induced envelope (Env) epitopes within constant region 1 and 2 (C1/C2) were induced in the RV144 vaccine trial, where antibody-dependent cellular cytotoxicity (ADCC) correlated with reduced risk of HIV-1 infection. We combined X-ray crystallography and fluorescence resonance energy transfer-fluorescence correlation spectroscopy to describe the molecular basis for epitopes of seven RV144 Abs and compared them to A32 and C11, C1/C2 Abs induced in HIV infection. Our data indicate that most vaccine Abs recognize the 7-stranded beta-sandwich of gp120, a unique hybrid epitope bridging A32 and C11 binding sites. Although primarily directed at the 7-stranded beta-sandwich, some accommodate the gp120 N terminus in C11-bound 8-stranded conformation and therefore recognize a broader range of CD4-triggered Env conformations. Our data also suggest that Abs of RV144 and RV305, the RV144 follow-up study, although likely initially induced by the ALVAC-HIV prime encoding full-length gp120, matured through boosting with truncated AIDSVAX gp120 variants.IMPORTANCE Antibody-dependent cellular cytotoxicity (ADCC) correlated with a reduced risk of infection from HIV-1 in the RV144 vaccine trial, the only HIV-1 vaccine trial to date to show any efficacy. Antibodies specific for CD4-induced envelope (Env) epitopes within constant region 1 and 2 (cluster A region) were induced in the RV144 trial and their ADCC activities were implicated in the vaccine efficacy. We present structural analyses of the antigen epitope targets of several RV144 antibodies specific for this region and C11, an antibody induced in natural infection, to show what the differences are in epitope specificities, mechanism of antigen recognition, and ADCC activities of antibodies induced by vaccination and during the course of HIV infection. Our data suggest that the truncated AIDSVAX gp120 variants used in the boost of the RV144 regimen may have shaped the vaccine response to this region, which could also have contributed to vaccine efficacy.

-	~~Authors:~~ Tolbert, W.D., ~~Pazgier~~, M.	+	Recognition Patterns of the C1/C2 Epitopes Involved in Fc-Mediated Response in HIV-1 Natural Infection and the RV114 Vaccine Trial.,Tolbert WD, Van V, Sherburn R, Tuyishime M, Yan F, Nguyen DN, Stanfield-Oakley S, Easterhoff D, Bonsignori M, Haynes BF, Moody MA, Ray K, Ferrari G, Lewis GK, Pazgier M mBio. 2020 Jun 30;11(3). pii: mBio.00208-20. doi: 10.1128/mBio.00208-20. PMID:32605979<ref>PMID:32605979</ref>

-	~~Description: CRYSTAL STRUCTURE OF THE NON-NEUTRALIZING AND ADCC~~-~~POTENT ANTIBODY C11 IN COMPLEX WITH HIV~~-~~1 CLADE A~~/~~E GP120~~	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-	[[Category: ~~Unreleased~~ Structures]]	+	</div>
-	[[Category: Pazgier, M]]	+	<div class="pdbe-citations 6oej" style="background-color:#fffaf0;"></div>
-	[[Category: Tolbert~~, W.D~~]]	+
		+	==See Also==
		+	*[[Antibody 3D structures\|Antibody 3D structures]]
		+	*[[Gp120 3D structures\|Gp120 3D structures]]
		+	== References ==
		+	<references/>
		+	__TOC__
		+	</StructureSection>
		+	[[Category: Homo sapiens]]
		+	[[Category: Human immunodeficiency virus 1]]
		+	[[Category: Large Structures]]
		+	[[Category: Pazgier M]]
		+	[[Category: Tolbert WD]]

OCA: Protected "6oej" [edit=sysop:move=sysop]

OCA — Wed, 03 Apr 2019 04:47:27 GMT

Protected "6oej" [edit=sysop:move=sysop]

←Older revision

Revision as of 04:47, 3 April 2019

OCA: New page: '''Unreleased structure''' The entry 6oej is ON HOLD until Paper Publication Authors: Tolbert, W.D., Pazgier, M. Description: CRYSTAL STRUCTURE OF THE NON-NEUTRALIZING AND ADCC-POTENT ...

OCA — Wed, 03 Apr 2019 04:47:26 GMT

New page: '''Unreleased structure''' The entry 6oej is ON HOLD until Paper Publication Authors: Tolbert, W.D., Pazgier, M. Description: CRYSTAL STRUCTURE OF THE NON-NEUTRALIZING AND ADCC-POTENT ...

New page

'''Unreleased structure'''

The entry 6oej is ON HOLD until Paper Publication

Authors: Tolbert, W.D., Pazgier, M.

Description: CRYSTAL STRUCTURE OF THE NON-NEUTRALIZING AND ADCC-POTENT ANTIBODY C11 IN COMPLEX WITH HIV-1 CLADE A/E GP120
[[Category: Unreleased Structures]]
[[Category: Pazgier, M]]
[[Category: Tolbert, W.D]]

6oej - Revision history

OCA at 07:09, 11 October 2023

OCA: Protected "6oej" [edit=sysop:move=sysop]

OCA: New page: '''Unreleased structure''' The entry 6oej is ON HOLD until Paper Publication Authors: Tolbert, W.D., Pazgier, M. Description: CRYSTAL STRUCTURE OF THE NON-NEUTRALIZING AND ADCC-POTENT ...