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- PDB-6vo3: AMC009 SOSIP.v4.2 in complex with PGV04 Fab -

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Basic information

Entry
Database: PDB / ID: 6vo3
TitleAMC009 SOSIP.v4.2 in complex with PGV04 Fab
Components
  • (AMC009 SOSIP.v4.2 envelope glycoprotein ...) x 2
  • PGV04 heavy chain
  • PGV04 light chain
KeywordsIMMUNE SYSTEM / HIV / Env / antibody / VIRAL PROTEIN
Biological speciesHomo sapiens (human)
Human immunodeficiency virus 1
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.25 Å
AuthorsCottrell, C.A. / de Val, N. / Ward, A.B.
Funding support United States, 4items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)F31 Al131873 United States
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)UM1 AI144462 United States
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)UM1 AI100663 United States
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)P01 AI110657 United States
CitationJournal: J Virol / Year: 2020
Title: Neutralizing Antibody Responses Induced by HIV-1 Envelope Glycoprotein SOSIP Trimers Derived from Elite Neutralizers.
Authors: Anna Schorcht / Tom L G M van den Kerkhof / Christopher A Cottrell / Joel D Allen / Jonathan L Torres / Anna-Janina Behrens / Edith E Schermer / Judith A Burger / Steven W de Taeye / Alba ...Authors: Anna Schorcht / Tom L G M van den Kerkhof / Christopher A Cottrell / Joel D Allen / Jonathan L Torres / Anna-Janina Behrens / Edith E Schermer / Judith A Burger / Steven W de Taeye / Alba Torrents de la Peña / Ilja Bontjer / Stephanie Gumbs / Gabriel Ozorowski / Celia C LaBranche / Natalia de Val / Anila Yasmeen / Per Johan Klasse / David C Montefiori / John P Moore / Hanneke Schuitemaker / Max Crispin / Marit J van Gils / Andrew B Ward / Rogier W Sanders /
Abstract: The induction of broadly neutralizing antibodies (bNAbs) is a major goal in vaccine research. HIV-1-infected individuals that develop exceptionally strong bNAb responses, termed elite neutralizers, ...The induction of broadly neutralizing antibodies (bNAbs) is a major goal in vaccine research. HIV-1-infected individuals that develop exceptionally strong bNAb responses, termed elite neutralizers, can inform vaccine design by providing blueprints for the induction of similar bNAb responses. We describe a new recombinant native-like envelope glycoprotein (Env) SOSIP trimer, termed AMC009, based on the viral founder sequences of an elite neutralizer. The subtype B AMC009 SOSIP protein formed stable native-like trimers that displayed multiple bNAb epitopes. Overall, its structure at 4.3-Å resolution was similar to that of BG505 SOSIP.664. The AMC009 trimer resembled one from a second elite neutralizer, AMC011, in having a dense and complete glycan shield. When tested as immunogens in rabbits, the AMC009 trimers did not induce autologous neutralizing antibody (NAb) responses efficiently while the AMC011 trimers did so very weakly, outcomes that may reflect the completeness of their glycan shields. The AMC011 trimer induced antibodies that occasionally cross-neutralized heterologous tier 2 viruses, sometimes at high titer. Cross-neutralizing antibodies were more frequently elicited by a trivalent combination of AMC008, AMC009, and AMC011 trimers, all derived from subtype B viruses. Each of these three individual trimers could deplete the NAb activity from the rabbit sera. Mapping the polyclonal sera by electron microscopy revealed that antibodies of multiple specificities could bind to sites on both autologous and heterologous trimers. These results advance our understanding of how to use Env trimers in multivalent vaccination regimens and the immunogenicity of trimers derived from elite neutralizers. Elite neutralizers, i.e., individuals who developed unusually broad and potent neutralizing antibody responses, might serve as blueprints for HIV-1 vaccine design. Here, we studied the immunogenicity of native-like recombinant envelope glycoprotein (Env) trimers based on viral sequences from elite neutralizers. While immunization with single trimers from elite neutralization did not recapitulate the breadth and potency of neutralization observed in these infected individuals, a combination of three subtype B Env trimers from elite neutralizers resulted in some neutralization breadth within subtype B viruses. These results should guide future efforts to design vaccines to induce broadly neutralizing antibodies.
History
DepositionJan 29, 2020Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 23, 2020Provider: repository / Type: Initial release
Revision 1.1Oct 21, 2020Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2Dec 9, 2020Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.title ..._citation.journal_volume / _citation.title / _citation_author.identifier_ORCID / _citation_author.name

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Structure visualization

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  • Deposited structure unit
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Structure viewerMolecule:
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Assembly

Deposited unit
H: PGV04 heavy chain
L: PGV04 light chain
A: AMC009 SOSIP.v4.2 envelope glycoprotein gp120
B: AMC009 SOSIP.v4.2 envelope glycoprotein gp41
G: PGV04 heavy chain
J: PGV04 light chain
C: AMC009 SOSIP.v4.2 envelope glycoprotein gp120
E: AMC009 SOSIP.v4.2 envelope glycoprotein gp41
I: PGV04 heavy chain
K: PGV04 light chain
D: AMC009 SOSIP.v4.2 envelope glycoprotein gp120
F: AMC009 SOSIP.v4.2 envelope glycoprotein gp41
hetero molecules


Theoretical massNumber of molelcules
Total (without water)373,48451
Polymers357,67112
Non-polymers15,81339
Water0
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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AMC009 SOSIP.v4.2 envelope glycoprotein ... , 2 types, 6 molecules ACDBEF

#3: Protein AMC009 SOSIP.v4.2 envelope glycoprotein gp120


Mass: 54113.422 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Human immunodeficiency virus 1 / Gene: env / Cell line (production host): HEK293F / Production host: Homo sapiens (human)
#4: Protein AMC009 SOSIP.v4.2 envelope glycoprotein gp41


Mass: 17391.799 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Human immunodeficiency virus 1 / Gene: env / Cell line (production host): HEK293F / Production host: Homo sapiens (human)

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Antibody / Protein , 2 types, 6 molecules HGILJK

#1: Antibody PGV04 heavy chain


Mass: 24644.771 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): HEK293F / Production host: Homo sapiens (human)
#2: Protein PGV04 light chain


Mass: 23073.822 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): HEK293F / Production host: Homo sapiens (human)

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Sugars , 4 types, 39 molecules

#5: Polysaccharide
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 586.542 Da / Num. of mol.: 9
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/2,3,2/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5]/1-1-2/a4-b1_b4-c1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{}}}}LINUCSPDB-CARE
#6: Polysaccharide alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2- ...alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 910.823 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpa1-3[DManpa1-6]DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/3,5,4/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5][a1122h-1a_1-5]/1-1-2-3-3/a4-b1_b4-c1_c3-d1_c6-e1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{[(3+1)][a-D-Manp]{}[(6+1)][a-D-Manp]{}}}}}LINUCSPDB-CARE
#7: Polysaccharide
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 9
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}}LINUCSPDB-CARE
#8: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE / N-Acetylglucosamine


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 18
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Details

Has ligand of interestN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

Component
IDNameTypeEntity IDParent-IDSource
1AMC009 SOSIP.v4.2 in complex with PGV04 FabCOMPLEX#1-#40MULTIPLE SOURCES
2AMC009 SOSIP.v4.2COMPLEX#1-#21RECOMBINANT
3PGV04 FabCOMPLEX#3-#41RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Human immunodeficiency virus 111676
23Homo sapiens (human)9606
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
12Homo sapiens (human)9606
23Homo sapiens (human)9606
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: unspecified
VitrificationInstrument: HOMEMADE PLUNGER / Cryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy / Cs: 2.7 mm
Specimen holderSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingAverage exposure time: 7 sec. / Electron dose: 32 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of real images: 3021
Image scansMovie frames/image: 35

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Processing

EM software
IDNameVersionCategory
2Leginonimage acquisition
7Cootmodel fitting
8UCSF Chimeramodel fitting
10Rosettamodel refinement
11Cootmodel refinement
15cryoSPARC23D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C3 (3 fold cyclic)
3D reconstructionResolution: 4.25 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 128752 / Symmetry type: POINT
Atomic model buildingProtocol: FLEXIBLE FIT / Space: REAL

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