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Yorodumi- PDB-8c9n: MiniCoV-ADDomer, a SARS-CoV-2 epitope presenting viral like particle -
+Open data
-Basic information
Entry | Database: PDB / ID: 8c9n | |||||||||||||||||||||||||||
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Title | MiniCoV-ADDomer, a SARS-CoV-2 epitope presenting viral like particle | |||||||||||||||||||||||||||
Components | Penton protein | |||||||||||||||||||||||||||
Keywords | VIRUS LIKE PARTICLE / ADDomer / VLP / Viral / like / Particle / AD3 / Penton / base / vaccine / COVID-19 / COVID / MINI-COVID / Dodecahedron / pb / protein / adenovirus / human | |||||||||||||||||||||||||||
Function / homology | Adenovirus penton base protein / Adenovirus penton base protein / T=25 icosahedral viral capsid / endocytosis involved in viral entry into host cell / host cell nucleus / virion attachment to host cell / structural molecule activity / metal ion binding / Penton protein Function and homology information | |||||||||||||||||||||||||||
Biological species | Human adenovirus B3 | |||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.36 Å | |||||||||||||||||||||||||||
Authors | Bufton, J.C. / Capin, J. / Boruku, U. / Garzoni, F. / Schaffitzel, C. / Berger, I. | |||||||||||||||||||||||||||
Funding support | United Kingdom, 8items
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Citation | Journal: Antib Ther / Year: 2023 Title: generated antibodies guide thermostable ADDomer nanoparticle design for nasal vaccination and passive immunization against SARS-CoV-2. Authors: Dora Buzas / Adrian H Bunzel / Oskar Staufer / Emily J Milodowski / Grace L Edmunds / Joshua C Bufton / Beatriz V Vidana Mateo / Sathish K N Yadav / Kapil Gupta / Charlotte Fletcher / Maia K ...Authors: Dora Buzas / Adrian H Bunzel / Oskar Staufer / Emily J Milodowski / Grace L Edmunds / Joshua C Bufton / Beatriz V Vidana Mateo / Sathish K N Yadav / Kapil Gupta / Charlotte Fletcher / Maia K Williamson / Alexandra Harrison / Ufuk Borucu / Julien Capin / Ore Francis / Georgia Balchin / Sophie Hall / Mirella V Vega / Fabien Durbesson / Srikanth Lingappa / Renaud Vincentelli / Joe Roe / Linda Wooldridge / Rachel Burt / Ross J L Anderson / Adrian J Mulholland / Bristol Uncover Group / Jonathan Hare / Mick Bailey / Andrew D Davidson / Adam Finn / David Morgan / Jamie Mann / Joachim Spatz / Frederic Garzoni / Christiane Schaffitzel / Imre Berger / Abstract: BACKGROUND: Due to COVID-19, pandemic preparedness emerges as a key imperative, necessitating new approaches to accelerate development of reagents against infectious pathogens. METHODS: Here, we developed an integrated approach combining synthetic, computational and structural methods with antibody selection and immunization to design, produce and validate nature-inspired ...METHODS: Here, we developed an integrated approach combining synthetic, computational and structural methods with antibody selection and immunization to design, produce and validate nature-inspired nanoparticle-based reagents against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). RESULTS: Our approach resulted in two innovations: (i) a thermostable nasal vaccine called ADDoCoV, displaying multiple copies of a SARS-CoV-2 receptor binding motif derived epitope and (ii) a ...RESULTS: Our approach resulted in two innovations: (i) a thermostable nasal vaccine called ADDoCoV, displaying multiple copies of a SARS-CoV-2 receptor binding motif derived epitope and (ii) a multivalent nanoparticle superbinder, called Gigabody, against SARS-CoV-2 including immune-evasive variants of concern (VOCs). generated neutralizing nanobodies and electron cryo-microscopy established authenticity and accessibility of epitopes displayed by ADDoCoV. Gigabody comprising multimerized nanobodies prevented SARS-CoV-2 virion attachment with picomolar EC. Vaccinating mice resulted in antibodies cross-reacting with VOCs including Delta and Omicron. CONCLUSION: Our study elucidates Adenovirus-derived dodecamer (ADDomer)-based nanoparticles for use in active and passive immunization and provides a blueprint for crafting reagents to combat ...CONCLUSION: Our study elucidates Adenovirus-derived dodecamer (ADDomer)-based nanoparticles for use in active and passive immunization and provides a blueprint for crafting reagents to combat respiratory viral infections. | |||||||||||||||||||||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8c9n.cif.gz | 8.3 MB | Display | PDBx/mmCIF format |
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PDB format | pdb8c9n.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 8c9n.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8c9n_validation.pdf.gz | 2.3 MB | Display | wwPDB validaton report |
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Full document | 8c9n_full_validation.pdf.gz | 2.4 MB | Display | |
Data in XML | 8c9n_validation.xml.gz | 597.1 KB | Display | |
Data in CIF | 8c9n_validation.cif.gz | 907 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/c9/8c9n ftp://data.pdbj.org/pub/pdb/validation_reports/c9/8c9n | HTTPS FTP |
-Related structure data
Related structure data | 11730 16512MC 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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1 |
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-Components
#1: Protein | Mass: 66618.547 Da / Num. of mol.: 60 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Human adenovirus B3 / Gene: L2 / Cell line (production host): High Five / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q2Y0H9 |
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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: ADDomer Mini-COVID viral like particle vaccine derived from Human Ad3 penton base protein. Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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Molecular weight | Value: 3.9930516 MDa / Experimental value: NO |
Source (natural) | Organism: Human adenovirus B3 |
Source (recombinant) | Organism: Trichoplusia ni (cabbage looper) |
Buffer solution | pH: 7.5 |
Specimen | Conc.: 0.1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Talos Arctica / Image courtesy: FEI Company |
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Microscopy | Model: FEI TALOS ARCTICA |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 130000 X / Nominal defocus max: 2200 nm / Nominal defocus min: 700 nm / Cs: 2.7 mm |
Image recording | Electron dose: 1.1 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
Image scans | Movie frames/image: 40 |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 96546 | ||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 2.36 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 32227 / Symmetry type: POINT |