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Yorodumi- PDB-8dvd: Cryo-EM structure of SIVmac239 SOS-2P Env trimer in complex with ... -
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-Basic information
Entry | Database: PDB / ID: 8dvd | |||||||||
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Title | Cryo-EM structure of SIVmac239 SOS-2P Env trimer in complex with human bNAb PGT145 | |||||||||
Components |
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Keywords | VIRAL PROTEIN/Immune System / CD4 / HIV-1 / SOSIP / Vaccine / IMMUNE SYSTEM / SIV / VIRAL PROTEIN / VIRAL PROTEIN-Immune System complex | |||||||||
Function / homology | Function and homology information membrane fusion involved in viral entry into host cell / host cell endosome membrane / symbiont entry into host cell / viral envelope / virion attachment to host cell / apoptotic process / host cell plasma membrane / structural molecule activity / virion membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | Simian immunodeficiency virus Homo sapiens (human) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.12 Å | |||||||||
Authors | Gorman, J. / Kwong, P.D. | |||||||||
Funding support | United States, 2items
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Citation | Journal: Nat Struct Mol Biol / Year: 2022 Title: Cryo-EM structures of prefusion SIV envelope trimer. Authors: Jason Gorman / Chunyan Wang / Rosemarie D Mason / Alexandra F Nazzari / Hugh C Welles / Tongqing Zhou / Julian W Bess / Tatsiana Bylund / Myungjin Lee / Yaroslav Tsybovsky / Raffaello ...Authors: Jason Gorman / Chunyan Wang / Rosemarie D Mason / Alexandra F Nazzari / Hugh C Welles / Tongqing Zhou / Julian W Bess / Tatsiana Bylund / Myungjin Lee / Yaroslav Tsybovsky / Raffaello Verardi / Shuishu Wang / Yongping Yang / Baoshan Zhang / Reda Rawi / Brandon F Keele / Jeffrey D Lifson / Jun Liu / Mario Roederer / Peter D Kwong / Abstract: Simian immunodeficiency viruses (SIVs) are lentiviruses that naturally infect non-human primates of African origin and seeded cross-species transmissions of HIV-1 and HIV-2. Here we report prefusion ...Simian immunodeficiency viruses (SIVs) are lentiviruses that naturally infect non-human primates of African origin and seeded cross-species transmissions of HIV-1 and HIV-2. Here we report prefusion stabilization and cryo-EM structures of soluble envelope (Env) trimers from rhesus macaque SIV (SIV) in complex with neutralizing antibodies. These structures provide residue-level definition for SIV-specific disulfide-bonded variable loops (V1 and V2), which we used to delineate variable-loop coverage of the Env trimer. The defined variable loops enabled us to investigate assembled Env-glycan shields throughout SIV, which we found to comprise both N- and O-linked glycans, the latter emanating from V1 inserts, which bound the O-link-specific lectin jacalin. We also investigated in situ SIV-Env trimers on virions, determining cryo-electron tomography structures at subnanometer resolutions for an antibody-bound complex and a ligand-free state. Collectively, these structures define the prefusion-closed structure of the SIV-Env trimer and delineate variable-loop and glycan-shielding mechanisms of immune evasion conserved throughout SIV evolution. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8dvd.cif.gz | 468.9 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8dvd.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 8dvd.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8dvd_validation.pdf.gz | 5.3 MB | Display | wwPDB validaton report |
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Full document | 8dvd_full_validation.pdf.gz | 5.4 MB | Display | |
Data in XML | 8dvd_validation.xml.gz | 74 KB | Display | |
Data in CIF | 8dvd_validation.cif.gz | 111.1 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/dv/8dvd ftp://data.pdbj.org/pub/pdb/validation_reports/dv/8dvd | HTTPS FTP |
-Related structure data
Related structure data | 27735MC 8duaC C: citing same article (ref.) M: map data used to model this data |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Envelope glycoprotein ... , 2 types, 6 molecules ABCEFG
#1: Protein | Mass: 16822.201 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Simian immunodeficiency virus / Gene: env / Production host: Homo sapiens (human) / References: UniProt: A0A0C5JYT4 #2: Protein | Mass: 57195.500 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Simian immunodeficiency virus / Production host: Homo sapiens (human) / References: UniProt: A0A4Y5TGK0 |
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-Protein / Antibody , 2 types, 2 molecules HL
#3: Protein | Mass: 26393.357 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human) |
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#4: Antibody | Mass: 23953.750 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human) |
-Sugars , 12 types, 76 molecules
#5: Polysaccharide | alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1- ...alpha-D-mannopyranose-(1-3)-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 #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 Source method: isolated from a genetically manipulated source #7: 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 Source method: isolated from a genetically manipulated source #8: 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 #9: Polysaccharide | Source method: isolated from a genetically manipulated source #10: Polysaccharide | alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D- ...alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)-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 | Source method: isolated from a genetically manipulated source #11: Polysaccharide | Source method: isolated from a genetically manipulated source #12: Polysaccharide | Source method: isolated from a genetically manipulated source #13: Polysaccharide | Type: oligosaccharide / Mass: 1235.105 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source #14: Polysaccharide | alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-alpha-D- ...alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[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 | Source method: isolated from a genetically manipulated source #15: Sugar | #16: Sugar | ChemComp-MAN / | |
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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 |
-Sample preparation
Component | Name: SIVmac239 SOS-2P in complex with PGT145 / Type: COMPLEX / Entity ID: #1-#4 / Source: RECOMBINANT |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: Simian immunodeficiency virus |
Source (recombinant) | Organism: Homo sapiens (human) |
Buffer solution | pH: 7.4 / Details: PBS |
Specimen | Conc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid type: C-flat-1.2/1.3 |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 90 % / Chamber temperature: 293 K |
-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 / Nominal defocus max: 2500 nm / Nominal defocus min: 1200 nm / C2 aperture diameter: 70 µm |
Image recording | Average exposure time: 2 sec. / Electron dose: 51.15 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1 |
-Processing
Software | Name: PHENIX / Version: 1.20_4459: / Classification: refinement | ||||||||||||||||||||||||
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
3D reconstruction | Resolution: 4.12 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 61881 / Algorithm: FOURIER SPACE / Symmetry type: POINT | ||||||||||||||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL | ||||||||||||||||||||||||
Atomic model building | PDB-ID: 6TYB Accession code: 6TYB / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE | ||||||||||||||||||||||||
Refine LS restraints |
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