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- PDB-6gsh: Feline Calicivirus Strain F9 -

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Database: PDB / ID: 6gsh
TitleFeline Calicivirus Strain F9
KeywordsVIRUS / Capsid / Calicivirus / Vesivirus / Vp1
Function / homologyCalicivirus coat protein / Viral coat protein subunit / Picornavirus/Calicivirus coat protein / Calicivirus coat protein / VP1
Function and homology information
Specimen sourceFeline calicivirus
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / 3 Å resolution
AuthorsConley, M.J. / Bhella, D.
CitationJournal: Nature / Year: 2019
Title: Calicivirus VP2 forms a portal-like assembly following receptor engagement.
Authors: Michaela J Conley / Marion McElwee / Liyana Azmi / Mads Gabrielsen / Olwyn Byron / Ian G Goodfellow / David Bhella
Validation Report
SummaryFull reportAbout validation report
DateDeposition: Jun 14, 2018 / Release: Jan 16, 2019
RevisionDateData content typeGroupCategoryItemProviderType
1.0Jan 16, 2019Structure modelrepositoryInitial release
1.1Jan 23, 2019Structure modelData collection / Database referencescitation / citation_author_citation.pdbx_database_id_PubMed / _citation.title / _citation_author.name
1.2Jan 30, 2019Structure modelData collection / Database referencescitation_citation.journal_volume / _citation.page_first / _citation.page_last
1.3Feb 6, 2019Structure modelData collection / Derived calculationspdbx_struct_assembly / pdbx_struct_assembly_gen / pdbx_struct_oper_list_pdbx_struct_assembly.oligomeric_count / _pdbx_struct_assembly.oligomeric_details / _pdbx_struct_assembly_gen.oper_expression

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Deposited unit
A: VP1
B: VP1
C: VP1
hetero molecules

Theoretical massNumber of molelcules
Total (without water)220,1576
A: VP1
B: VP1
C: VP1
hetero molecules
x 60

Theoretical massNumber of molelcules
Total (without water)13,209,437360
TypeNameSymmetry operationNumber
point symmetry operation60


#1: Protein/peptide VP1

Mass: 73346.664 Da / Num. of mol.: 3 / Source: (gene. exp.) Feline calicivirus / Cell (production host): Crandell Reese Feline Kidney cells
Cell line (production host): Crandell Reese Feline Kidney cells
Production host: Felis catus (domestic cat) / References: UniProt: A2T4P8
#2: Chemical ChemComp-K / POTASSIUM ION

Mass: 39.098 Da / Num. of mol.: 3 / Formula: K / Potassium

Experimental details


EM experimentAggregation state: PARTICLE / Reconstruction method: single particle reconstruction

Sample preparation

ComponentName: T=3 Icosahedral Capsid. / Type: COMPLEX / Details: T=3 Icosahedral Capsid / Entity ID: 1 / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Feline calicivirus
Source (recombinant)Organism: Felis catus (domestic cat)
Details of virusEmpty: NO / Enveloped: NO / Virus isolate: STRAIN / Virus type: VIRION
Natural hostOrganism: Felis catus
Virus shellName: Capsid / Diameter: 400 nm / Triangulation number (T number): 3
Buffer solutionDetails: Phosphate buffered saline / pH: 7.2
SpecimenConc.: 1 mg/ml / Details: Purified enveloped virions / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 kelvins

Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyMicroscope model: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy / Nominal magnification: 75000 / Cs: 2.7 mm
Image recordingElectron dose: 63 e/Å2
Details: Each micrograph was recorded as a movie of 50 individual fractions with a total dose of 63 e/angstrom squared
Detector mode: INTEGRATING / Film or detector model: FEI FALCON III (4k x 4k) / Number of grids imaged: 1 / Number of real images: 5198


SoftwareName: PHENIX / Version: 1.13_2998: / Classification: refinement
EM software
2EPUimage acquisition
4GctfCTF correction
10RELION2.1initial Euler assignment
11RELION2.1final Euler assignment
13RELION2.13D reconstruction
Image processingDetails: Images were motion-corrected using motioncor2 Defocus estimation was performed using GCTF
CTF correctionDetails: CTF correction was implemented through Relion / Type: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionDetails: Autopicking in Relion / Number of particles selected: 59531
SymmetryPoint symmetry: I
3D reconstructionResolution: 3 Å / Resolution method: FSC 0.143 CUT-OFF / Number of particles: 41436 / Symmetry type: POINT

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