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- PDB-8qtz: Cryo-EM reconstruction of VP5*/VP8* assembly from SA11 Rotavirus ... -

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Basic information

Entry
Database: PDB / ID: 8qtz
TitleCryo-EM reconstruction of VP5*/VP8* assembly from SA11 Rotavirus Tripsinized Triple Layered Particle
ComponentsOuter capsid protein VP4
KeywordsVIRUS / Rotavirus / dsRNA virus
Function / homology
Function and homology information


host cell rough endoplasmic reticulum / permeabilization of host organelle membrane involved in viral entry into host cell / host cytoskeleton / viral outer capsid / host cell endoplasmic reticulum-Golgi intermediate compartment / virion attachment to host cell / host cell plasma membrane / membrane
Similarity search - Function
Rotavirus VP4 helical domain / Rotavirus VP4 helical domain / Outer capsid protein VP4 / Rotavirus VP4, membrane interaction domain superfamily / Rotavirus VP4, membrane interaction domain / Rotavirus VP4 membrane interaction domain / Haemagglutinin outer capsid protein VP4, concanavalin-like domain / Outer Capsid protein VP4 (Hemagglutinin) Concanavalin-like domain / Concanavalin A-like lectin/glucanase domain superfamily
Similarity search - Domain/homology
Outer capsid protein VP4
Similarity search - Component
Biological speciesRotavirus
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.27 Å
AuthorsAsensio-Cob, D. / Perez-Mata, C. / Gomez-Blanco, J. / Vargas, J. / Rodriguez, J.M. / Luque, D.
Funding support Spain, 1items
OrganizationGrant numberCountry
Spanish Ministry of Science, Innovation, and UniversitiesISCIII-AESI PI20CIII/00014 Spain
CitationJournal: To Be Published
Title: Structural basis of rotavirus spike proteolytic activation
Authors: Asensio-Cob, D. / Perez-Mata, C. / Gomez-Blanco, J. / Vargas, J. / Rodriguez, J.M. / Luque, D.
History
DepositionOct 13, 2023Deposition site: PDBE / Processing site: PDBE
Revision 1.0Sep 25, 2024Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
X: Outer capsid protein VP4
Y: Outer capsid protein VP4
Z: Outer capsid protein VP4


Theoretical massNumber of molelcules
Total (without water)260,2503
Polymers260,2503
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

#1: Protein Outer capsid protein VP4 / Hemagglutinin


Mass: 86749.891 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Details: Outer capsid protein VP4 / Source: (gene. exp.) Rotavirus / Gene: VP4 / Production host: Chlorocebus aethiops (grivet) / References: UniProt: A0A060IEP4

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Rotavirus A / Type: VIRUS / Details: Rotavirus SA11 Non-tripsinized spike / Entity ID: all / Source: NATURAL
Molecular weightValue: 92 MDa / Experimental value: NO
Source (natural)Organism: Rotavirus A / Strain: SA11
Details of virusEmpty: NO / Enveloped: NO / Isolate: STRAIN / Type: VIRION
Natural hostOrganism: Chlorocebus aethiops
Virus shellName: TLP / Diameter: 700 nm
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: Rotavirus SA11 Tripsinized spike
VitrificationInstrument: LEICA EM GP / Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 295 K

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 58000 X / Nominal defocus max: 3000 nm / Nominal defocus min: 750 nm / Alignment procedure: COMA FREE
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 39.9 e/Å2 / Detector mode: INTEGRATING / Film or detector model: FEI FALCON III (4k x 4k) / Num. of real images: 2368

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Processing

EM software
IDNameCategory
1Xmippparticle selection
2EPUimage acquisition
4CTFFINDCTF correction
10RELIONinitial Euler assignment
11RELIONfinal Euler assignment
12RELIONclassification
13RELION3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 28427
3D reconstructionResolution: 4.27 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 22394 / Symmetry type: POINT

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