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Open data
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Basic information
| Entry | Database: PDB / ID: 6v8x | |||||||||
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| Title | VRC01 Bound BG505 F14 HIV-1 SOSIP Envelope Trimer Structure | |||||||||
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Keywords | VIRAL PROTEIN/IMMUNE SYSTEM / Trimer / Complex / Immunogen / HIV-1 / VIRAL PROTEIN-IMMUNE SYSTEM complex | |||||||||
| Function / homology | Function and homology informationimmunoglobulin complex / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / adaptive immune response / viral protein processing / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope ...immunoglobulin complex / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / adaptive immune response / viral protein processing / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / host cell plasma membrane / virion membrane / structural molecule activity / extracellular region / identical protein binding / membrane / plasma membrane Similarity search - Function | |||||||||
| Biological species | ![]() Human immunodeficiency virus 1 Homo sapiens (human) | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3 Å | |||||||||
Authors | Henderson, R. / Acharya, P. | |||||||||
| Funding support | United States, 1items
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Citation | Journal: Nat Commun / Year: 2020Title: Disruption of the HIV-1 Envelope allosteric network blocks CD4-induced rearrangements. Authors: Rory Henderson / Maolin Lu / Ye Zhou / Zekun Mu / Robert Parks / Qifeng Han / Allen L Hsu / Elizabeth Carter / Scott C Blanchard / R J Edwards / Kevin Wiehe / Kevin O Saunders / Mario J ...Authors: Rory Henderson / Maolin Lu / Ye Zhou / Zekun Mu / Robert Parks / Qifeng Han / Allen L Hsu / Elizabeth Carter / Scott C Blanchard / R J Edwards / Kevin Wiehe / Kevin O Saunders / Mario J Borgnia / Alberto Bartesaghi / Walther Mothes / Barton F Haynes / Priyamvada Acharya / S Munir Alam / ![]() Abstract: The trimeric HIV-1 Envelope protein (Env) mediates viral-host cell fusion via a network of conformational transitions, with allosteric elements in each protomer orchestrating host receptor-induced ...The trimeric HIV-1 Envelope protein (Env) mediates viral-host cell fusion via a network of conformational transitions, with allosteric elements in each protomer orchestrating host receptor-induced exposure of the co-receptor binding site and fusion elements. To understand the molecular details of this allostery, here, we introduce Env mutations aimed to prevent CD4-induced rearrangements in the HIV-1 BG505 Env trimer. Binding analysis and single-molecule Förster Resonance Energy Transfer confirm that these mutations prevent CD4-induced transitions of the HIV-1 Env. Structural analysis by single-particle cryo-electron microscopy performed on the BG505 SOSIP mutant Env proteins shows rearrangements in the gp120 topological layer contacts with gp41. Displacement of a conserved tryptophan (W571) from its typical pocket in these Env mutants renders the Env insensitive to CD4 binding. These results reveal the critical function of W571 as a conformational switch in Env allostery and receptor-mediated viral entry and provide insights on Env conformation that are relevant for vaccine design. | |||||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 6v8x.cif.gz | 562.4 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb6v8x.ent.gz | 462.4 KB | Display | PDB format |
| PDBx/mmJSON format | 6v8x.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 6v8x_validation.pdf.gz | 3 MB | Display | wwPDB validaton report |
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| Full document | 6v8x_full_validation.pdf.gz | 3.1 MB | Display | |
| Data in XML | 6v8x_validation.xml.gz | 87.1 KB | Display | |
| Data in CIF | 6v8x_validation.cif.gz | 131.7 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/v8/6v8x ftp://data.pdbj.org/pub/pdb/validation_reports/v8/6v8x | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 21111MC ![]() 6v8zC M: map data used to model this data C: citing same article ( |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Envelope glycoprotein ... , 2 types, 6 molecules AEIBFJ
| #1: Protein | Mass: 52791.840 Da / Num. of mol.: 3 / Fragment: UNP residues 32-502 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Human immunodeficiency virus 1 / Gene: env / Production host: Homo sapiens (human) / References: UniProt: Q2N0S6#2: Protein | Mass: 16447.670 Da / Num. of mol.: 3 / Fragment: UNP residues 519-663 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Human immunodeficiency virus 1 / Gene: env / Production host: Homo sapiens (human) / References: UniProt: Q2N0S9 |
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-Antibody , 2 types, 6 molecules CGKDHL
| #3: Antibody | Mass: 24367.631 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human) / References: UniProt: Q6N095#4: Antibody | Mass: 22930.412 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human) / References: UniProt: Q6PIL8 |
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-Sugars , 4 types, 51 molecules 
| #5: Polysaccharide | Source method: isolated from a genetically manipulated source #6: 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 #7: 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 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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| Molecular weight | Experimental value: NO | ||||||||||||||||||||||||
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| Buffer solution | pH: 7.4 | ||||||||||||||||||||||||
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
| Specimen support | Details: unspecified | ||||||||||||||||||||||||
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD |
| Image recording | Electron dose: 54 e/Å2 / Film or detector model: FEI FALCON III (4k x 4k) |
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Processing
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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| Symmetry | Point symmetry: C3 (3 fold cyclic) |
| 3D reconstruction | Resolution: 3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 77632 / Symmetry type: POINT |
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About Yorodumi





Human immunodeficiency virus 1
Homo sapiens (human)
United States, 1items
Citation
UCSF Chimera









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