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Yorodumi- PDB-6vtt: Cryo-EM Structure of CAP256-VRC26.25 Fab bound to HIV-1 Env trime... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 6vtt | |||||||||
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| Title | Cryo-EM Structure of CAP256-VRC26.25 Fab bound to HIV-1 Env trimer CAP256.wk34.c80 SOSIP.RnS2 | |||||||||
Components |
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Keywords | VIRAL PROTEIN/IMMUNE SYSTEM / V1V2 / VRC26 / CAP256 / HIV-1 / SOSIP / Vaccine / Superinfecting / VIRAL PROTEIN-IMMUNE SYSTEM complex | |||||||||
| Function / homology | Function and homology informationpositive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / 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 ...positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / 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 / membrane Similarity search - Function | |||||||||
| Biological species | ![]() Human immunodeficiency virus 1 Homo sapiens (human) | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å | |||||||||
Authors | Gorman, J. / Kwong, P.D. | |||||||||
| Funding support | United States, 1items
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Citation | Journal: Cell Rep / Year: 2020Title: Structure of Super-Potent Antibody CAP256-VRC26.25 in Complex with HIV-1 Envelope Reveals a Combined Mode of Trimer-Apex Recognition. Authors: Jason Gorman / Gwo-Yu Chuang / Yen-Ting Lai / Chen-Hsiang Shen / Jeffrey C Boyington / Aliaksandr Druz / Hui Geng / Mark K Louder / Krisha McKee / Reda Rawi / Raffaello Verardi / Yongping ...Authors: Jason Gorman / Gwo-Yu Chuang / Yen-Ting Lai / Chen-Hsiang Shen / Jeffrey C Boyington / Aliaksandr Druz / Hui Geng / Mark K Louder / Krisha McKee / Reda Rawi / Raffaello Verardi / Yongping Yang / Baoshan Zhang / Nicole A Doria-Rose / Bob Lin / Penny L Moore / Lynn Morris / Lawrence Shapiro / John R Mascola / Peter D Kwong / ![]() Abstract: Antibodies targeting the V1V2 apex of the HIV-1 envelope (Env) trimer comprise one of the most commonly elicited categories of broadly neutralizing antibodies. Structures of these antibodies indicate ...Antibodies targeting the V1V2 apex of the HIV-1 envelope (Env) trimer comprise one of the most commonly elicited categories of broadly neutralizing antibodies. Structures of these antibodies indicate diverse modes of Env recognition typified by antibodies of the PG9 class and the PGT145 class. The mode of recognition, however, has been unclear for the most potent of the V1V2 apex-targeting antibodies, CAP256-VRC26.25 (named for donor-lineage.clone and referred to hereafter as VRC26.25). Here, we determine the cryoelectron microscopy structure at 3.7 Å resolution of the antigen-binding fragment of VRC26.25 in complex with the Env trimer thought to have initiated the lineage. The 36-residue protruding loop of VRC26.25 displays recognition incorporating both strand-C interactions similar to the PG9 class and V1V2 apex insertion similar to the PGT145 class. Structural elements of separate antibody classes can thus intermingle to form a "combined" class, which in this case yields an antibody of extraordinary potency. | |||||||||
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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 | 6vtt.cif.gz | 381.2 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb6vtt.ent.gz | 312.2 KB | Display | PDB format |
| PDBx/mmJSON format | 6vtt.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 6vtt_validation.pdf.gz | 2.7 MB | Display | wwPDB validaton report |
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| Full document | 6vtt_full_validation.pdf.gz | 2.8 MB | Display | |
| Data in XML | 6vtt_validation.xml.gz | 66.8 KB | Display | |
| Data in CIF | 6vtt_validation.cif.gz | 96.6 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/vt/6vtt ftp://data.pdbj.org/pub/pdb/validation_reports/vt/6vtt | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 21383MC ![]() 6vrwC C: citing same article ( M: map data used to model this data |
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| Similar structure data |
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Assembly
| Deposited unit | ![]()
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Components
-Envelope glycoprotein ... , 2 types, 6 molecules FEGABC
| #1: Protein | Mass: 53322.434 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) / References: UniProt: A0A0N9FF17*PLUS#4: Protein | Mass: 17355.703 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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-Antibody , 2 types, 2 molecules HL
| #2: Antibody | Mass: 28083.482 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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| #3: Antibody | Mass: 23052.611 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human) / References: UniProt: A2NUT2 |
-Sugars , 7 types, 63 molecules 
| #5: 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 #6: Polysaccharide | Source method: isolated from a genetically manipulated source #7: Polysaccharide | Source method: isolated from a genetically manipulated source #8: 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 #9: Polysaccharide | alpha-D-mannopyranose-(1-3)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]beta-D- ...alpha-D-mannopyranose-(1-3)-alpha-D-mannopyranose-(1-6)-[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 #10: Polysaccharide | alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D- ...alpha-D-mannopyranose-(1-2)-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 #11: 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 | ||||||||||||||||||||||||
| Source (natural) |
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| Source (recombinant) |
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| Buffer solution | pH: 7.4 | ||||||||||||||||||||||||
| Buffer component | Formula: PBS | ||||||||||||||||||||||||
| Specimen | Conc.: 2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: Cryo-EM Structure of Fab CAP256-VRC26.25 bound to HIV-1 Env trimer CAP256 SU.wk34.80 SOSIP.RnS2 | ||||||||||||||||||||||||
| Specimen support | Grid material: COPPER / Grid type: C-flat-1.2/1.3 4C | ||||||||||||||||||||||||
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 90 % / Chamber temperature: 293 K |
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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 / C2 aperture diameter: 70 µm |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Average exposure time: 10 sec. / Electron dose: 64.48 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 1777 |
| Image scans | Movie frames/image: 50 |
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Processing
| Software | Name: PHENIX / Version: 1.18rc1_3769: / 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: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 108977 / Symmetry type: POINT | ||||||||||||||||||||||||
| Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL | ||||||||||||||||||||||||
| Atomic model building |
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| Refinement | Highest resolution: 3.7 Å | ||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi




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










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