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- PDB-5o5p: Poliovirus type 3 (strain Saukett) stabilized virus-like particle... -
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Open data
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Basic information
Entry | Database: PDB / ID: 5o5p | |||||||||
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Title | Poliovirus type 3 (strain Saukett) stabilized virus-like particle in complex with the pocket factor compound GPP3 | |||||||||
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Function / homology | ![]() symbiont genome entry into host cell via pore formation in plasma membrane / ![]() Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ![]() ![]() ![]() | |||||||||
![]() | Bahar, M.W. / Kotecha, A. / Fry, E.E. / Stuart, D.I. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Plant-made polio type 3 stabilized VLPs-a candidate synthetic polio vaccine. Authors: Johanna Marsian / Helen Fox / Mohammad W Bahar / Abhay Kotecha / Elizabeth E Fry / David I Stuart / Andrew J Macadam / David J Rowlands / George P Lomonossoff / ![]() Abstract: Poliovirus (PV) is the causative agent of poliomyelitis, a crippling human disease known since antiquity. PV occurs in two distinct antigenic forms, D and C, of which only the D form elicits a robust ...Poliovirus (PV) is the causative agent of poliomyelitis, a crippling human disease known since antiquity. PV occurs in two distinct antigenic forms, D and C, of which only the D form elicits a robust neutralizing response. Developing a synthetically produced stabilized virus-like particle (sVLP)-based vaccine with D antigenicity, without the drawbacks of current vaccines, will be a major step towards the final eradication of poliovirus. Such a sVLP would retain the native antigenic conformation and the repetitive structure of the original virus particle, but lack infectious genomic material. In this study, we report the production of synthetically stabilized PV VLPs in plants. Mice carrying the gene for the human PV receptor are protected from wild-type PV when immunized with the plant-made PV sVLPs. Structural analysis of the stabilized mutant at 3.6 Å resolution by cryo-electron microscopy and single-particle reconstruction reveals a structure almost indistinguishable from wild-type PV3.Despite the success of current vaccination against poliomyelitis, safe, cheap and effective vaccines remain sought for continuing eradication effort. Here the authors use plants to express stabilized virus-like particles of type 3 poliovirus that can induce a protective immune response in mice transgenic for the human poliovirus receptor. | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 144.6 KB | Display | ![]() |
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PDB format | ![]() | 113.3 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 3749MC ![]() 3747C ![]() 5o5bC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | ![]() Mass: 33562.785 Da / Num. of mol.: 1 / Mutation: T105M, F132L Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() ![]() |
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#2: Protein | ![]() Mass: 30188.982 Da / Num. of mol.: 1 / Mutation: L18I, L215M, D241E Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() ![]() |
#3: Protein | ![]() Mass: 26315.100 Da / Num. of mol.: 1 / Mutation: H19Y, L85F Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() ![]() |
#4: Protein | ![]() Mass: 7452.113 Da / Num. of mol.: 1 / Mutation: T67A Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() ![]() |
#5: Chemical | ChemComp-9LW / |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: ![]() |
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Sample preparation
Component | Name: Human poliovirus 3![]() Details: Poliovirus type 3 (Saukett strain) virus-like particle produced in plant expression system. Entity ID: #1-#4 / Source: RECOMBINANT |
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Molecular weight | Value: 5.8 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() ![]() ![]() ![]() |
Details of virus | Empty: YES / Enveloped: NO / Isolate: SEROTYPE / Type: VIRUS-LIKE PARTICLE |
Natural host | Organism: Human poliovirus 3 / Strain: Saukett |
Virus shell | Name: Capsid![]() |
Buffer solution | pH: 7 / Details: PBS pH 7.0 |
Specimen | Conc.: 0.1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied![]() ![]() Details: Virus-like particles for polio type 3 (strain Saukett) in complex with pocket factor compound GPP3 were assessed by negative stain EM analysis, prior to cryo-em data collection. |
Specimen support | Grid material: COPPER / Grid mesh size: 200 divisions/in. / Grid type: C-flat CF-2/1-2C |
Vitrification![]() | Instrument: FEI VITROBOT MARK I / Cryogen name: ETHANE / Humidity: 90 % / Chamber temperature: 293 K / Details: Blot for 4 seconds before plunging. |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Tecnai Polara / Image courtesy: FEI Company |
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Microscopy | Model: FEI POLARA 300 / Details: Preliminary grid screening was performed. |
Electron gun | Electron source![]() ![]() |
Electron lens | Mode: BRIGHT FIELD![]() ![]() |
Specimen holder | Cryogen: NITROGEN Specimen holder model: GATAN 910 MULTI-SPECIMEN SINGLE TILT CRYO TRANSFER HOLDER |
Image recording | Average exposure time: 0.2 sec. / Electron dose: 1.2 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 1018 |
EM imaging optics | Energyfilter name![]() |
Image scans | Sampling size: 5 µm / Width: 4086 / Height: 4086 / Movie frames/image: 25 / Used frames/image: 2-25 |
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Processing
Software | Name: PHENIX / Version: 1.12rc0_2787: / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||
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EM software |
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Image processing | Details: The selected images were drift corrected using MotionCorr. | ||||||||||||||||||||||||||||||||||||||||||||||||||
CTF correction![]() | Details: CTF parameters were estimated using CTFFIND3 as part of RELION 1.3. Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 6639 Details: Automated particle picking (ETHAN) was followed by manual cleaning (EMAN2). | ||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry![]() ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction![]() | Resolution: 4.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 2060 / Algorithm: BACK PROJECTION / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL / Target criteria: Cross-correlation coefficient Details: phenix.real_space_refine was used to refine the atomic model in the cryo-em map. | ||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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