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- PDB-6vrw: Cryo-EM structure of stabilized HIV-1 Env trimer CAP256.wk34.c80 ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 6vrw | |||||||||
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Title | Cryo-EM structure of stabilized HIV-1 Env trimer CAP256.wk34.c80 SOSIP.RnS2 | |||||||||
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![]() | IMMUNE SYSTEM / V1V2 / VRC26 / CAP256 / HIV-1 / SOSIP / Vaccine / Superinfecting | |||||||||
Function / homology | ![]() positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of establishment of T cell polarity / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / virus-mediated perturbation of host defense response / fusion of virus membrane with host endosome membrane / viral envelope ...positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of establishment of T cell polarity / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / virus-mediated perturbation of host defense response / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / host cell plasma membrane / structural molecule activity / virion membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.71 Å | |||||||||
![]() | Gorman, J. / Kwong, P.D. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: 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. | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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PDBx/mmCIF format | ![]() | 322.2 KB | Display | ![]() |
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PDB format | ![]() | 278.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 2.6 MB | Display | ![]() |
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Full document | ![]() | 2.6 MB | Display | |
Data in XML | ![]() | 60.9 KB | Display | |
Data in CIF | ![]() | 87.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 21372MC ![]() 6vttC 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
#1: Protein | Mass: 53322.434 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #2: Protein | Mass: 17355.703 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #3: 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 #4: Polysaccharide | Source method: isolated from a genetically manipulated source #5: Sugar | ChemComp-NAG / Has ligand of interest | N | |
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-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
Component | Name: HIV-1 Env trimer CAP256 SU.wk34.80 SOSIP.RnS2 / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() |
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: 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: ![]() |
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: 74.41 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 1760 |
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: C3 (3 fold cyclic) | ||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.71 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 34008 / Symmetry type: POINT | ||||||||||||||||||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL | ||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 6NF2 | ||||||||||||||||||||||||||||
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