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- PDB-9nhl: BG505-CH505 Env glycoprotein in complex with NHP pAb FP-1 isolate... -
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Open data
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Basic information
Entry | Database: PDB / ID: 9nhl | |||||||||||||||||||||||||||
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Title | BG505-CH505 Env glycoprotein in complex with NHP pAb FP-1 isolated from animal RUu18 at week 14 | |||||||||||||||||||||||||||
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![]() | STRUCTURAL PROTEIN / HIV-1 / polyclonal / cryoEMPEM | |||||||||||||||||||||||||||
Biological species | ![]() ![]() ![]() ![]() | |||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å | |||||||||||||||||||||||||||
![]() | Pratap, P.P. / Ozorowski, G. / Ward, A.B. | |||||||||||||||||||||||||||
Funding support | ![]()
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![]() | ![]() 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 |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 380.3 KB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 2 MB | Display | ![]() |
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Full document | ![]() | 2 MB | Display | |
Data in XML | ![]() | 71.1 KB | Display | |
Data in CIF | ![]() | 106.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 49415MC ![]() 9nhhC ![]() 9nhiC ![]() 9nhjC ![]() 9nhkC ![]() 9nhmC ![]() 9nhnC ![]() 9nhoC ![]() 9ni9C C: citing same article ( M: map data used to model this data |
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Links
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Assembly
Deposited unit | ![]()
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Components
-RUu-FP-1 pAb ... , 2 types, 2 molecules HL
#1: Protein | Mass: 10468.889 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#2: Protein | Mass: 8897.965 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Protein , 2 types, 6 molecules AYCDFB
#3: Protein | Mass: 56228.031 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #4: Protein | Mass: 17165.350 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-Sugars , 4 types, 50 molecules 
#5: Polysaccharide | Source method: isolated from a genetically manipulated source #6: Polysaccharide | Source method: isolated from a genetically manipulated source #7: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | Source method: isolated from a genetically manipulated source #8: Sugar | ChemComp-NAG / |
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-Details
Has ligand of interest | N |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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Source (natural) |
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Source (recombinant) | Organism: ![]() | ||||||||||||||||||||||||
Buffer solution | pH: 7.4 | ||||||||||||||||||||||||
Buffer component |
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Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |
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Microscopy | Model: FEI TALOS ARCTICA |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 36000 X / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm |
Specimen holder | Cryogen: NITROGEN |
Image recording | Electron 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 |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||
3D reconstruction | Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 143186 / Symmetry type: POINT |