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Yorodumi- PDB-9owe: CryoEM structure of stabilized dengue 3 virus envelope glycoprote... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 9owe | ||||||||||||||||||||||||
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| Title | CryoEM structure of stabilized dengue 3 virus envelope glycoprotein in complex with Fab of F25.S02 | ||||||||||||||||||||||||
Components |
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Keywords | IMMUNE SYSTEM / Orthoflavivirus / Dengue | ||||||||||||||||||||||||
| Function / homology | Function and homology informationclathrin-dependent endocytosis of virus by host cell / protein dimerization activity / symbiont-mediated suppression of host innate immune response / host cell endoplasmic reticulum membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / virion membrane / extracellular region Similarity search - Function | ||||||||||||||||||||||||
| Biological species | dengue virus type 3 Homo sapiens (human) | ||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.16 Å | ||||||||||||||||||||||||
Authors | Hurlburt, N.K. / Pancera, M. | ||||||||||||||||||||||||
| Funding support | 1items
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Citation | Journal: Commun Biol / Year: 2026Title: Structural basis for antibody cross-neutralization of Dengue and Zika viruses. Authors: Nicholas K Hurlburt / Jay Lubow / Leslie Goo / Marie Pancera / ![]() Abstract: Safe and effective vaccines against co-circulating mosquito-borne orthoflaviviruses such as Zika virus (ZikV) and the four serotypes of Dengue virus (DenV1-4) must elicit broadly neutralizing ...Safe and effective vaccines against co-circulating mosquito-borne orthoflaviviruses such as Zika virus (ZikV) and the four serotypes of Dengue virus (DenV1-4) must elicit broadly neutralizing antibodies (bnAbs) to prevent the risk of enhancement of infection by non-neutralizing antibodies. We recently discovered new orthoflavivirus-directed bnAbs, including F25.S02, which neutralizes DenV1-4 and ZikV with comparable or superior potency to the previously characterized E dimer epitope (EDE) bnAbs. Here, we used cryoEM and X-ray crystallography to understand the basis of cross-neutralization of F25.S02 at the molecular level. We obtained a ~ 4.2 Å cryoEM structure of F25.S02 Fab bound to a stabilized DenV3 soluble E protein dimer and a 2.3 Å crystal structure of F25.S02 Fab bound to ZikV soluble E protein dimer. Like previously described EDE1 bnAbs, the structural epitope of F25.S02 is at the E dimer interface, encompassing predominantly conserved regions in domain II, including the fusion loop. However, unlike EDE1 bnAbs, F25.S02 binding is almost entirely dependent on the heavy chain and is shifted slightly away from the dimer symmetry axis. Our findings emphasize the importance of this cross-neutralizing site of vulnerability for DenV and ZikV that can facilitate rational design of vaccines and therapeutics. | ||||||||||||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9owe.cif.gz | 495.1 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9owe.ent.gz | 339.9 KB | Display | PDB format |
| PDBx/mmJSON format | 9owe.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ow/9owe ftp://data.pdbj.org/pub/pdb/validation_reports/ow/9owe | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 70931MC ![]() 9owfC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 45001.320 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) dengue virus type 3 / Cell line (production host): Expi293F / Production host: Homo sapiens (human) / References: UniProt: Q07019#2: Antibody | Mass: 25575.670 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): HEK 293E / Production host: Homo sapiens (human)#3: Antibody | Mass: 23023.486 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): HEK 293E / Production host: Homo sapiens (human)#4: Polysaccharide | Source method: isolated from a genetically manipulated source #5: Sugar | Has ligand of interest | N | Has protein modification | Y | |
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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: Complex of F25.S02 Fab bound to DenV3 sE sc30 / Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Microscopy | Model: TFS GLACIOS |
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| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1200 nm |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| EM software | Name: PHENIX / Version: 1.21.2_5419 / Category: model refinement | ||||||||||||||||||||||||
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 4.16 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 111111 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
| Displacement parameters | Biso mean: 137.21 Å2 | ||||||||||||||||||||||||
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About Yorodumi



dengue virus type 3
Homo sapiens (human)
Citation


PDBj





FIELD EMISSION GUN