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Open data
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Basic information
| Entry | Database: PDB / ID: 9blk | |||||||||
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| Title | HCoV-OC43 Spike glycoprotein | |||||||||
Components | Spike glycoprotein | |||||||||
Keywords | VIRAL PROTEIN / HCoV / cryoEM / microfluidics | |||||||||
| Function / homology | Function and homology informationhost cell endoplasmic reticulum-Golgi intermediate compartment membrane / receptor-mediated virion attachment to host cell / endocytosis involved in viral entry into host cell / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / host cell plasma membrane / virion membrane / membrane Similarity search - Function | |||||||||
| Biological species | Human coronavirus OC43 | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||
Authors | Torrents de la Pena, A. / Sewall, L.M. / Ward, A.B. | |||||||||
| Funding support | United States, 2items
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Citation | Journal: Nat Biomed Eng / Year: 2025Title: Rapid and High-Throughput Imaging of Immune Complexes Using Microfluidics and Single Particle Electron Microscopy Authors: Sewall, L.M. / de Paiva Froes Rocha, R. / Gibson, G. / Louie, M. / Xie, Z. / Bangaru, S. / Tran, A.S. / Ozorowski, G. / Mohanty, S. / Beutler, N. / Burton, D.R. / Shaw, A.C. / Batista, F.D. ...Authors: Sewall, L.M. / de Paiva Froes Rocha, R. / Gibson, G. / Louie, M. / Xie, Z. / Bangaru, S. / Tran, A.S. / Ozorowski, G. / Mohanty, S. / Beutler, N. / Burton, D.R. / Shaw, A.C. / Batista, F.D. / Chocarro Ruiz, B. / Torrents de la Pena, A. / Ward, A.B. | |||||||||
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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 | 9blk.cif.gz | 697.5 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9blk.ent.gz | 559.6 KB | Display | PDB format |
| PDBx/mmJSON format | 9blk.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 9blk_validation.pdf.gz | 2 MB | Display | wwPDB validaton report |
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| Full document | 9blk_full_validation.pdf.gz | 2.1 MB | Display | |
| Data in XML | 9blk_validation.xml.gz | 108.1 KB | Display | |
| Data in CIF | 9blk_validation.cif.gz | 168.2 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/bl/9blk ftp://data.pdbj.org/pub/pdb/validation_reports/bl/9blk | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 44658MC ![]() 9btoC 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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| 1 |
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Components
| #1: Protein | Mass: 151600.172 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Human coronavirus OC43 / Production host: Homo sapiens (human) / References: UniProt: Q696P8#2: Polysaccharide | Source method: isolated from a genetically manipulated source #3: Polysaccharide | Source method: isolated from a genetically manipulated source #4: Sugar | ChemComp-NAG / 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: HCoV-OC43 Spike Protein with the introduction two stabilizing Prolines (2P) at residues 1079 and 1080 Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT |
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| Source (natural) | Organism: Human coronavirus OC43 |
| Source (recombinant) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.4 / Details: TBS |
| Specimen | Conc.: 0.02 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Details: no pretreatment / Grid material: GRAPHENE OXIDE / Grid mesh size: 300 divisions/in. / Grid type: EMS Lacey Carbon |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K Details: graphene oxide grids, 2.5s blot time, 30s blot time, double blotted, blot force 1 |
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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 magnification: 190000 X / Nominal defocus max: 1600 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm / C2 aperture diameter: 100 µm |
| Image recording | Electron dose: 50 e/Å2 / Detector mode: COUNTING / Film or detector model: FEI FALCON IV (4k x 4k) / Num. of real images: 839 |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||
| Particle selection | Num. of particles selected: 164473 | ||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C3 (3 fold cyclic) | ||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 18599 / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi




Human coronavirus OC43
United States, 2items
Citation



















PDBj
Homo sapiens (human)
FIELD EMISSION GUN