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- PDB-7kfe: Bundibugyo virus GP (mucin deleted) bound to antibody Fab BDBV-329 -
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Open data
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Basic information
Entry | Database: PDB / ID: 7kfe | |||||||||
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Title | Bundibugyo virus GP (mucin deleted) bound to antibody Fab BDBV-329 | |||||||||
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![]() | VIRAL PROTEIN/IMMUNE SYSTEM / ebolavirus / antibody / broadly neutralizing / glycan cap / VIRAL PROTEIN / VIRAL PROTEIN-IMMUNE SYSTEM complex | |||||||||
Function / homology | Filoviruses glycoprotein, extracellular domain / Filoviruses glycoprotein / Filovirus glycoprotein / membrane => GO:0016020 / viral envelope / extracellular region / membrane / Spike glycoprotein / Envelope glycoprotein![]() | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 6.6 Å | |||||||||
![]() | Murin, C.D. / Ward, A.B. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Convergence of a common solution for broad ebolavirus neutralization by glycan cap-directed human antibodies. Authors: Charles D Murin / Pavlo Gilchuk / Philipp A Ilinykh / Kai Huang / Natalia Kuzmina / Xiaoli Shen / Jessica F Bruhn / Aubrey L Bryan / Edgar Davidson / Benjamin J Doranz / Lauren E Williamson ...Authors: Charles D Murin / Pavlo Gilchuk / Philipp A Ilinykh / Kai Huang / Natalia Kuzmina / Xiaoli Shen / Jessica F Bruhn / Aubrey L Bryan / Edgar Davidson / Benjamin J Doranz / Lauren E Williamson / Jeffrey Copps / Tanwee Alkutkar / Andrew I Flyak / Alexander Bukreyev / James E Crowe / Andrew B Ward / ![]() Abstract: Antibodies that target the glycan cap epitope on the ebolavirus glycoprotein (GP) are common in the adaptive response of survivors. A subset is known to be broadly neutralizing, but the details of ...Antibodies that target the glycan cap epitope on the ebolavirus glycoprotein (GP) are common in the adaptive response of survivors. A subset is known to be broadly neutralizing, but the details of their epitopes and basis for neutralization are not well understood. Here, we present cryoelectron microscopy (cryo-EM) structures of diverse glycan cap antibodies that variably synergize with GP base-binding antibodies. These structures describe a conserved site of vulnerability that anchors the mucin-like domains (MLDs) to the glycan cap, which we call the MLD anchor and cradle. Antibodies that bind to the MLD cradle share common features, including use of IGHV1-69 and IGHJ6 germline genes, which exploit hydrophobic residues and form β-hairpin structures to mimic the MLD anchor, disrupt MLD attachment, destabilize GP quaternary structure, and block cleavage events required for receptor binding. Our results provide a molecular basis for ebolavirus neutralization by broadly reactive glycan cap antibodies. | |||||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 302.4 KB | Display | ![]() |
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PDB format | ![]() | 246.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.2 MB | Display | ![]() |
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Full document | ![]() | 1.2 MB | Display | |
Data in XML | ![]() | 49.6 KB | Display | |
Data in CIF | ![]() | 76 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 22851MC ![]() 7kejC ![]() 7kewC ![]() 7kexC ![]() 7kf9C ![]() 7kfbC ![]() 7kfgC ![]() 7kfhC 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
-Protein , 2 types, 6 molecules ABCDEF
#3: Protein | Mass: 38579.625 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #4: Protein | Mass: 19683.902 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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-Antibody , 2 types, 4 molecules HGJI
#1: Antibody | Mass: 25959.318 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #2: Antibody | Mass: 23357.906 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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-Sugars , 3 types, 7 molecules ![](data/chem/img/NAG.gif)
#5: Polysaccharide | Source method: isolated from a genetically manipulated source #6: Polysaccharide | Source method: isolated from a genetically manipulated source #7: Sugar | |
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-Details
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
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Source (natural) |
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Source (recombinant) |
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Buffer solution | pH: 7.4 | ||||||||||||||||||||||||||||
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 |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction | Resolution: 6.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 45640 / Symmetry type: POINT |