+Open data
-Basic information
Entry | Database: PDB / ID: 9f6a | ||||||||||||
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Title | EVA71 E096A native particle | ||||||||||||
Components |
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Keywords | VIRUS / native provirion intermediate | ||||||||||||
Function / homology | Function and homology information symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity / picornain 2A / symbiont-mediated suppression of host mRNA export from nucleus / symbiont genome entry into host cell via pore formation in plasma membrane / picornain 3C / T=pseudo3 icosahedral viral capsid / host cell cytoplasmic vesicle membrane / cytoplasmic vesicle membrane / endocytosis involved in viral entry into host cell / symbiont-mediated suppression of host gene expression ...symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity / picornain 2A / symbiont-mediated suppression of host mRNA export from nucleus / symbiont genome entry into host cell via pore formation in plasma membrane / picornain 3C / T=pseudo3 icosahedral viral capsid / host cell cytoplasmic vesicle membrane / cytoplasmic vesicle membrane / endocytosis involved in viral entry into host cell / symbiont-mediated suppression of host gene expression / nucleoside-triphosphate phosphatase / channel activity / viral capsid / monoatomic ion transmembrane transport / RNA helicase activity / induction by virus of host autophagy / RNA-directed RNA polymerase / viral RNA genome replication / cysteine-type endopeptidase activity / RNA-dependent RNA polymerase activity / virus-mediated perturbation of host defense response / DNA-templated transcription / host cell nucleus / virion attachment to host cell / structural molecule activity / ATP hydrolysis activity / proteolysis / RNA binding / ATP binding / metal ion binding Similarity search - Function | ||||||||||||
Biological species | Enterovirus A71 | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.7 Å | ||||||||||||
Authors | Kingston, N.J. / Stonehouse, N.J. / Rowlands, D.J. / Hogle, J.M. / Filman, D.J. / Snowden, J.S.S. | ||||||||||||
Funding support | United States, United Kingdom, 3items
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Citation | Journal: PLoS Pathog / Year: 2024 Title: Mechanism of enterovirus VP0 maturation cleavage based on the structure of a stabilised assembly intermediate. Authors: Natalie J Kingston / Joseph S Snowden / Keith Grehan / Philippa K Hall / Eero V Hietanen / Tim C Passchier / Stephen J Polyak / David J Filman / James M Hogle / David J Rowlands / Nicola J Stonehouse / Abstract: Molecular details of genome packaging are little understood for the majority of viruses. In enteroviruses (EVs), cleavage of the structural protein VP0 into VP4 and VP2 is initiated by the ...Molecular details of genome packaging are little understood for the majority of viruses. In enteroviruses (EVs), cleavage of the structural protein VP0 into VP4 and VP2 is initiated by the incorporation of RNA into the assembling virion and is essential for infectivity. We have applied a combination of bioinformatic, molecular and structural approaches to generate the first high-resolution structure of an intermediate in the assembly pathway, termed a provirion, which contains RNA and intact VP0. We have demonstrated an essential role of VP0 E096 in VP0 cleavage independent of RNA encapsidation and generated a new model of capsid maturation, supported by bioinformatic analysis. This provides a molecular basis for RNA-dependence, where RNA induces conformational changes required for VP0 maturation, but that RNA packaging itself is not sufficient to induce maturation. These data have implications for understanding production of infectious virions and potential relevance for future vaccine and antiviral drug design. | ||||||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 9f6a.cif.gz | 165.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb9f6a.ent.gz | 127.5 KB | Display | PDB format |
PDBx/mmJSON format | 9f6a.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 9f6a_validation.pdf.gz | 1.7 MB | Display | wwPDB validaton report |
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Full document | 9f6a_full_validation.pdf.gz | 1.7 MB | Display | |
Data in XML | 9f6a_validation.xml.gz | 38.1 KB | Display | |
Data in CIF | 9f6a_validation.cif.gz | 53.9 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/f6/9f6a ftp://data.pdbj.org/pub/pdb/validation_reports/f6/9f6a | HTTPS FTP |
-Related structure data
Related structure data | 50221MC 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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-Components
#1: Protein | Mass: 35195.230 Da / Num. of mol.: 1 / Mutation: E096A Source method: isolated from a genetically manipulated source Source: (gene. exp.) Enterovirus A71 / Production host: Homo sapiens (human) / References: UniProt: D4QGA2 |
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#2: Protein | Mass: 26540.332 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Enterovirus A71 / Production host: Homo sapiens (human) / References: UniProt: D4QGA3 |
#3: Protein | Mass: 32781.805 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Enterovirus A71 / Production host: Homo sapiens (human) References: UniProt: A0A2L1GIK5, picornain 2A, nucleoside-triphosphate phosphatase, picornain 3C, RNA-directed RNA polymerase |
#4: Chemical | ChemComp-SPH / |
Has ligand of interest | Y |
-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: Enterovirus A71 / Type: VIRUS Details: Mutant virus recovered from in vitro transcribed RNA Entity ID: #1-#2 / Source: RECOMBINANT |
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Source (natural) | Organism: Enterovirus A71 |
Source (recombinant) | Organism: Homo sapiens (human) / Cell: HeLa |
Details of virus | Empty: YES / Enveloped: NO / Isolate: OTHER / Type: VIRION |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-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: DIFFRACTION / Nominal defocus max: 3000 nm / Nominal defocus min: 300 nm |
Image recording | Electron dose: 31 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) |
-Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction | Resolution: 2.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 1182 / Symmetry type: POINT |