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Yorodumi- PDB-8qrh: Inactivated tick-borne encephalitis virus (TBEV) vaccine strain S... -
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-Basic information
Entry | Database: PDB / ID: 8qrh | |||||||||
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Title | Inactivated tick-borne encephalitis virus (TBEV) vaccine strain Sofjin-Chumakov | |||||||||
Components |
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Keywords | VIRAL PROTEIN / TBEV / flavivirus / virion envelope | |||||||||
Function / homology | Function and homology information flavivirin / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT2 activity / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT1 activity / double-stranded RNA binding / nucleoside-triphosphate phosphatase / viral capsid / mRNA (guanine-N7)-methyltransferase / methyltransferase cap1 / clathrin-dependent endocytosis of virus by host cell / mRNA (nucleoside-2'-O-)-methyltransferase activity ...flavivirin / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT2 activity / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT1 activity / double-stranded RNA binding / nucleoside-triphosphate phosphatase / viral capsid / mRNA (guanine-N7)-methyltransferase / methyltransferase cap1 / clathrin-dependent endocytosis of virus by host cell / mRNA (nucleoside-2'-O-)-methyltransferase activity / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / RNA helicase activity / host cell perinuclear region of cytoplasm / protein dimerization activity / host cell endoplasmic reticulum membrane / RNA helicase / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / symbiont-mediated suppression of host innate immune response / induction by virus of host autophagy / symbiont entry into host cell / RNA-directed RNA polymerase / viral RNA genome replication / serine-type endopeptidase activity / RNA-dependent RNA polymerase activity / virus-mediated perturbation of host defense response / fusion of virus membrane with host endosome membrane / viral envelope / host cell nucleus / virion attachment to host cell / structural molecule activity / virion membrane / ATP hydrolysis activity / proteolysis / extracellular region / ATP binding / membrane / metal ion binding Similarity search - Function | |||||||||
Biological species | Orthoflavivirus encephalitidis | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.6 Å | |||||||||
Authors | Moiseenko, A.V. / Zhang, Y. / Vorovitch, M. / Ivanova, A. / Liu, Z. / Osolodkin, D.I. / Egorov, A. / Ishmukhametov, A. / Sokolova, O.S. | |||||||||
Funding support | Russian Federation, 2items
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Citation | Journal: Emerg Microbes Infect / Year: 2024 Title: The structure of inactivated mature tick-borne encephalitis virus at 3.0 Å resolution. Authors: Evgeny B Pichkur / Mikhail F Vorovitch / Alla L Ivanova / Elena V Protopopova / Valery B Loktev / Dmitry I Osolodkin / Aydar A Ishmukhametov / Valeriya R Samygina / Abstract: Tick-borne encephalitis virus (TBEV) causes a severe disease, tick-borne encephalitis (TBE), that has a substantial epidemiological importance for Northern Eurasia. Between 10,000 and 15,000 TBE ...Tick-borne encephalitis virus (TBEV) causes a severe disease, tick-borne encephalitis (TBE), that has a substantial epidemiological importance for Northern Eurasia. Between 10,000 and 15,000 TBE cases are registered annually despite the availability of effective formaldehyde-inactivated full-virion vaccines due to insufficient vaccination coverage, as well as sporadic cases of vaccine breakthrough. The development of improved vaccines would benefit from the atomic resolution structure of the antigen. Here we report the refined single-particle cryo-electron microscopy (cryo-EM) structure of the inactivated mature TBEV vaccine strain Sofjin-Chumakov (Far-Eastern subtype) at a resolution of 3.0 Å. The increase of the resolution with respect to the previously published structures of TBEV strains Hypr and Kuutsalo-14 (European subtype) was reached due to improvement of the virus sample quality achieved by the optimized preparation methods. All the surface epitopes of TBEV were structurally conserved in the inactivated virions. ELISA studies with monoclonal antibodies supported the hypothesis of TBEV protein shell cross-linking upon inactivation with formaldehyde. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8qrh.cif.gz | 295.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8qrh.ent.gz | 235.9 KB | Display | PDB format |
PDBx/mmJSON format | 8qrh.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8qrh_validation.pdf.gz | 1.1 MB | Display | wwPDB validaton report |
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Full document | 8qrh_full_validation.pdf.gz | 1.1 MB | Display | |
Data in XML | 8qrh_validation.xml.gz | 57.6 KB | Display | |
Data in CIF | 8qrh_validation.cif.gz | 86.6 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/qr/8qrh ftp://data.pdbj.org/pub/pdb/validation_reports/qr/8qrh | HTTPS FTP |
-Related structure data
Related structure data | 18614MC 8r8lC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 53432.090 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Details: KC806252.1 / Source: (natural) Orthoflavivirus encephalitidis / Cell line: primary chicken embryo fibroblasts / Strain: Sofjin-Chumakov / References: UniProt: D2XD30 #2: Protein | Mass: 7919.407 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Details: KC806252.1 / Source: (natural) Orthoflavivirus encephalitidis / Cell line: primary chicken embryo fibroblasts / Strain: Sofjin-Chumakov / References: UniProt: Q01299 #3: 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 |
-Sample preparation
Component | Name: Tick-borne encephalitis virus (STRAIN Sofjin-Chumakov) Type: VIRUS / Entity ID: #1-#2 / Source: NATURAL |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: Tick-borne encephalitis virus (STRAIN Sofjin-Chumakov) Strain: Sofjin-Chumakov / Details: Folmaldehyde inactivated |
Details of virus | Empty: NO / Enveloped: YES / Isolate: STRAIN / Type: VIRION |
Buffer solution | pH: 7.8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 99 % / Chamber temperature: 277 K |
-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 / Nominal defocus max: 2000 nm / Nominal defocus min: 800 nm |
Image recording | Electron dose: 68 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
EM imaging optics | Details: The local non-uniform refinement was used on the set of particles subjected to icosahedral symmetry expansion |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 70491 Details: The local non-uniform refinement was used on the set of particles subjected to I symmetry expansion Symmetry type: POINT | ||||||||||||||||||||||||
Atomic model building | PDB-ID: 5O6A Accession code: 5O6A / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 94.34 Å2 | ||||||||||||||||||||||||
Refine LS restraints |
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