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- PDB-9nhm: BG505-CH505 Env glycoprotein in complex with NHP pAb V1V2V3-1 iso... -

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Basic information

Entry
Database: PDB / ID: 9nhm
TitleBG505-CH505 Env glycoprotein in complex with NHP pAb V1V2V3-1 isolated from animal RUu18 at week 14
Components
  • (RUu-V1V2V3-1 pAb ...) x 2
  • BG505-CH505 Envelope glycoprotein gp120
  • BG505-CH505 Transmembrane protein gp41
KeywordsSTRUCTURAL PROTEIN / HIV-1 / polyclonal / cryoEMPEM
Biological speciesHuman immunodeficiency virus 1
Macaca mulatta (Rhesus monkey)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4 Å
AuthorsPratap, P.P. / Ozorowski, G. / Ward, A.B.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)R01 AI145629 United States
CitationJournal: bioRxiv / Year: 2024
Title: Immunofocusing on the conserved fusion peptide of HIV envelope glycoprotein in rhesus macaques.
Authors: Payal P Pratap / Christopher A Cottrell / James Quinn / Diane G Carnathan / Daniel L V Bader / Andy S Tran / Chiamaka A Enemuo / Julia T Ngo / Sara T Richey / Hongmei Gao / Xiaoying Shen / ...Authors: Payal P Pratap / Christopher A Cottrell / James Quinn / Diane G Carnathan / Daniel L V Bader / Andy S Tran / Chiamaka A Enemuo / Julia T Ngo / Sara T Richey / Hongmei Gao / Xiaoying Shen / Kelli M Greene / Jonathan Hurtado / Katarzyna Kaczmarek Michaels / Elana Ben-Akiva / Joel D Allen / Gabriel Ozorowski / Max Crispin / Bryan Briney / David Montefiori / Guido Silvestri / Darrell J Irvine / Shane Crotty / Andrew B Ward
Abstract: During infection, the fusion peptide (FP) of HIV envelope glycoprotein (Env) serves a central role in viral fusion with the host cell. As such, the FP is highly conserved and therefore an attractive ...During infection, the fusion peptide (FP) of HIV envelope glycoprotein (Env) serves a central role in viral fusion with the host cell. As such, the FP is highly conserved and therefore an attractive epitope for vaccine design. Here, we describe a vaccination study in non-human primates (NHPs) where glycan deletions were made on soluble HIV Env to increase FP epitope exposure. When delivered via implantable osmotic pumps, this immunogen primed immune responses against the FP, which were then boosted with heterologous trimers resulting in a focused immune response targeting the conserved FP epitope. Although autologous immunizations did not elicit high affinity FP-targeting antibodies, the conserved FP epitope on a heterologous trimer further matured the lower affinity, FP-targeting B cells. This study suggests using epitope conservation strategies on distinct Env trimer immunogens can focus humoral responses on desired neutralizing epitopes and suppress immune-distracting antibody responses against non-neutralizing epitopes.
History
DepositionFeb 24, 2025Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 25, 2025Provider: repository / Type: Initial release
Revision 1.0Jun 25, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jun 25, 2025Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Jun 25, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 25, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 25, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jun 25, 2025Data content type: Mask / Part number: 1 / Data content type: Mask / Provider: repository / Type: Initial release
Revision 1.0Jun 25, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
H: RUu-V1V2V3-1 pAb heavy chain
L: RUu-V1V2V3-1 pAb light chain
C: BG505-CH505 Envelope glycoprotein gp120
D: BG505-CH505 Transmembrane protein gp41
A: BG505-CH505 Envelope glycoprotein gp120
B: BG505-CH505 Transmembrane protein gp41
E: BG505-CH505 Envelope glycoprotein gp120
F: BG505-CH505 Transmembrane protein gp41
hetero molecules


Theoretical massNumber of molelcules
Total (without water)254,18162
Polymers239,7178
Non-polymers14,46454
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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RUu-V1V2V3-1 pAb ... , 2 types, 2 molecules HL

#1: Protein RUu-V1V2V3-1 pAb heavy chain


Mass: 10639.099 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Macaca mulatta (Rhesus monkey)
#2: Protein RUu-V1V2V3-1 pAb light chain


Mass: 8897.965 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Macaca mulatta (Rhesus monkey)

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Protein , 2 types, 6 molecules CAEDBF

#3: Protein BG505-CH505 Envelope glycoprotein gp120


Mass: 56228.031 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Human immunodeficiency virus 1 / Production host: Homo sapiens (human)
#4: Protein BG505-CH505 Transmembrane protein gp41


Mass: 17165.350 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Human immunodeficiency virus 1 / Production host: Homo sapiens (human)

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Sugars , 4 types, 54 molecules

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


Type: oligosaccharide / Mass: 627.594 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,3,2/[a2122h-1b_1-5_2*NCC/3=O]/1-1-1/a4-b1_b4-c1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}}LINUCSPDB-CARE
#6: 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.: 3
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam 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
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-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.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam 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
[][D-1-deoxy-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


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 47 / Source method: obtained synthetically / 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
Has protein modificationY

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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
1BG505-CH505 Env glycoprotein in complex with NHP pAb V1V2V3-1 isolated from animal RUu18 at week 14COMPLEX#1-#40MULTIPLE SOURCES
2BG505-CH505 Env glycoproteinCOMPLEX#3-#41RECOMBINANT
3BG505-CH505 Env glycoproteinCOMPLEX#1-#21NATURAL
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
22Human immunodeficiency virus 111676
33Macaca mulatta (Rhesus monkey)9544
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
Buffer component
IDConc.NameBuffer-ID
150 mMTris1
250 mMSodium Chloride1
30.005 mMLauryl Maltose Neopentyl Glycol1
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 36000 X / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm
Specimen holderCryogen: NITROGEN
Image recordingElectron dose: 49.92 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of real images: 7167

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Processing

EM software
IDNameVersionCategory
2Leginonimage acquisition
9PHENIX1.21.1_5286model refinement
13cryoSPARC3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 47505 / Symmetry type: POINT

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