+Open data
-Basic information
Entry | Database: PDB / ID: 5oyi | ||||||
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Title | FMDV A10 dissociated pentamer | ||||||
Components | (Genome polyprotein) x 3 | ||||||
Keywords | VIRAL PROTEIN / A10 / FMDV / Pentamer / CryoEM / virus | ||||||
Function / homology | Function and homology information L-peptidase / symbiont-mediated perturbation of host chromatin organization / picornain 3C / ribonucleoside triphosphate phosphatase activity / T=pseudo3 icosahedral viral capsid / host cell cytoplasmic vesicle membrane / nucleoside-triphosphate phosphatase / channel activity / regulation of translation / monoatomic ion transmembrane transport ...L-peptidase / symbiont-mediated perturbation of host chromatin organization / picornain 3C / ribonucleoside triphosphate phosphatase activity / T=pseudo3 icosahedral viral capsid / host cell cytoplasmic vesicle membrane / nucleoside-triphosphate phosphatase / channel activity / regulation of translation / monoatomic ion transmembrane transport / clathrin-dependent endocytosis of virus by host cell / RNA helicase activity / host cell endoplasmic reticulum membrane / viral protein processing / induction by virus of host autophagy / RNA-directed RNA polymerase / viral RNA genome replication / cysteine-type endopeptidase activity / RNA-dependent RNA polymerase activity / DNA-templated transcription / host cell nucleus / virion attachment to host cell / structural molecule activity / proteolysis / RNA binding / ATP binding / membrane Similarity search - Function | ||||||
Biological species | Foot-and-mouth disease virus | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 8.2 Å | ||||||
Authors | Kotecha, A. / Malik, N. / Stuart, D.I. | ||||||
Funding support | United Kingdom, 1items
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Citation | Journal: PLoS Pathog / Year: 2017 Title: Structures of foot and mouth disease virus pentamers: Insight into capsid dissociation and unexpected pentamer reassociation. Authors: Nayab Malik / Abhay Kotecha / Sarah Gold / Amin Asfor / Jingshan Ren / Juha T Huiskonen / Tobias J Tuthill / Elizabeth E Fry / David I Stuart / Abstract: Foot-and-mouth disease virus (FMDV) belongs to the Aphthovirus genus of the Picornaviridae, a family of small, icosahedral, non-enveloped, single-stranded RNA viruses. It is a highly infectious ...Foot-and-mouth disease virus (FMDV) belongs to the Aphthovirus genus of the Picornaviridae, a family of small, icosahedral, non-enveloped, single-stranded RNA viruses. It is a highly infectious pathogen and is one of the biggest hindrances to the international trade of animals and animal products. FMDV capsids (which are unstable below pH6.5) release their genome into the host cell from an acidic compartment, such as that of an endosome, and in the process dissociate into pentamers. Whilst other members of the family (enteroviruses) have been visualized to form an expanded intermediate capsid with holes from which inner capsid proteins (VP4), N-termini (VP1) and RNA can be released, there has been no visualization of any such state for an aphthovirus, instead the capsid appears to simply dissociate into pentamers. Here we present the 8-Å resolution structure of isolated dissociated pentamers of FMDV, lacking VP4. We also found these pentamers to re-associate into a rigid, icosahedrally symmetric assembly, which enabled their structure to be solved at higher resolution (5.2 Å). In this assembly, the pentamers unexpectedly associate 'inside out', but still with their exposed hydrophobic edges buried. Stabilizing interactions occur between the HI loop of VP2 and its symmetry related partners at the icosahedral 3-fold axes, and between the BC and EF loops of VP3 with the VP2 βB-strand and the CD loop at the 2-fold axes. A relatively extensive but subtle structural rearrangement towards the periphery of the dissociated pentamer compared to that in the mature virus provides insight into the mechanism of dissociation of FMDV and the marked difference in antigenicity. | ||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 5oyi.cif.gz | 554.7 KB | Display | PDBx/mmCIF format |
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PDB format | pdb5oyi.ent.gz | 454.8 KB | Display | PDB format |
PDBx/mmJSON format | 5oyi.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 5oyi_validation.pdf.gz | 913.9 KB | Display | wwPDB validaton report |
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Full document | 5oyi_full_validation.pdf.gz | 1.1 MB | Display | |
Data in XML | 5oyi_validation.xml.gz | 112.6 KB | Display | |
Data in CIF | 5oyi_validation.cif.gz | 161.4 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/oy/5oyi ftp://data.pdbj.org/pub/pdb/validation_reports/oy/5oyi | HTTPS FTP |
-Related structure data
Related structure data | 3862MC 3856C 5owxC C: citing same article (ref.) M: map data used to model this data |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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-Components
#1: Protein | Mass: 20097.980 Da / Num. of mol.: 5 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Foot-and-mouth disease virus (strain A10-61) Cell line (production host): BHK21 / Production host: Cricetinae gen. sp. (mammal) References: UniProt: P03306, L-peptidase, nucleoside-triphosphate phosphatase, picornain 3C, RNA-directed RNA polymerase #2: Protein | Mass: 20701.512 Da / Num. of mol.: 5 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Foot-and-mouth disease virus (strain A10-61) Production host: Cricetinae gen. sp. (mammal) References: UniProt: P03306, L-peptidase, nucleoside-triphosphate phosphatase, picornain 3C, RNA-directed RNA polymerase #3: Protein | Mass: 24233.992 Da / Num. of mol.: 5 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Foot-and-mouth disease virus (strain A10-61) Production host: Cricetinae gen. sp. (mammal) References: UniProt: P03306, L-peptidase, nucleoside-triphosphate phosphatase, picornain 3C, RNA-directed RNA polymerase |
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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: FMDV A10 dissociated pentamer / Type: VIRUS / Entity ID: all / Source: RECOMBINANT |
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Molecular weight | Value: 455 kDa/nm / Experimental value: NO |
Source (natural) | Organism: Foot-and-mouth disease virus (strain A10-61) |
Source (recombinant) | Organism: Cricetinae gen. sp. (mammal) |
Details of virus | Empty: NO / Enveloped: NO / Isolate: SEROTYPE / Type: VIRION |
Natural host | Organism: Bos taurus |
Virus shell | Name: Foot and Disease Virus A1061 / Diameter: 30 nm / Triangulation number (T number): 3 |
Buffer solution | pH: 8 / Details: 50mM Hepes, 200mM NaCl |
Specimen | Conc.: 2.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid mesh size: 200 divisions/in. / Grid type: C-Flats R2/1 |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 90 % / Chamber temperature: 298 K |
-Electron microscopy imaging
Experimental equipment | Model: Tecnai Polara / Image courtesy: FEI Company |
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Microscopy | Model: FEI POLARA 300 |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 160000 X / Calibrated magnification: 37037 X / Nominal defocus max: 5000 nm / Nominal defocus min: 1200 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm / Alignment procedure: BASIC |
Specimen holder | Cryogen: NITROGEN Specimen holder model: GATAN 910 MULTI-SPECIMEN SINGLE TILT CRYO TRANSFER HOLDER Temperature (max): 70 K / Temperature (min): 70 K |
Image recording | Average exposure time: 5 sec. / Electron dose: 20 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 1570 |
EM imaging optics | Energyfilter name: GIF / Energyfilter upper: 20 eV / Energyfilter lower: 0 eV |
Image scans | Sampling size: 5 µm / Width: 3838 / Height: 3710 / Movie frames/image: 25 / Used frames/image: 2-20 |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C5 (5 fold cyclic) | ||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 8.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 4260 / Algorithm: BACK PROJECTION / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
Atomic model building | B value: 200 / Protocol: RIGID BODY FIT / Space: REAL / Target criteria: Cross-correlation coefficient |