RCSB PDB - 9F5P: Poliovirus type 2 (strain MEF-1) stabilised virus-like particle (PV2 SC6b) from an insect cell expression system.

 9F5P

Poliovirus type 2 (strain MEF-1) stabilised virus-like particle (PV2 SC6b) from an insect cell expression system.


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Recombinant expression systems for production of stabilised virus-like particles as next-generation polio vaccines.

Sherry, L.Bahar, M.W.Porta, C.Fox, H.Grehan, K.Nasta, V.Duyvesteyn, H.M.E.De Colibus, L.Marsian, J.Murdoch, I.Ponndorf, D.Kim, S.R.Shah, S.Carlyle, S.Swanson, J.J.Matthews, S.Nicol, C.Lomonossoff, G.P.Macadam, A.J.Fry, E.E.Stuart, D.I.Stonehouse, N.J.Rowlands, D.J.

(2025) Nat Commun 16: 831-831

  • DOI: https://doi.org/10.1038/s41467-025-56118-z
  • Primary Citation of Related Structures:  
    9EYY, 9EZ0, 9F0K, 9F3Q, 9F59, 9F5P

  • PubMed Abstract: 

    Polioviruses have caused crippling disease in humans for centuries, prior to the successful development of vaccines in the mid-1900's, which dramatically reduced disease prevalence. Continued use of these vaccines, however, threatens ultimate disease eradication and achievement of a polio-free world. Virus-like particles (VLPs) that lack a viral genome represent a safer potential vaccine, although they require particle stabilization. Using our previously established genetic techniques to stabilize the structural capsid proteins, we demonstrate production of poliovirus VLPs of all three serotypes, from four different recombinant expression systems. We compare the antigenicity, thermostability and immunogenicity of these stabilized VLPs against the current inactivated polio vaccine, demonstrating equivalent or superior immunogenicity in female Wistar rats. Structural analyses of these recombinant VLPs provide a rational understanding of the stabilizing mutations and the role of potential excipients. Collectively, we have established these poliovirus stabilized VLPs as viable next-generation vaccine candidates for the future.


  • Organizational Affiliation

    Astbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Capsid protein VP1301Poliovirus 2Mutation(s): 4 
UniProt
Find proteins for P06210 (Poliovirus type 2 (strain Lansing))
Explore P06210 
Go to UniProtKB:  P06210
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP06210
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Capsid protein VP0340Poliovirus 2Mutation(s): 2 
UniProt
Find proteins for P06210 (Poliovirus type 2 (strain Lansing))
Explore P06210 
Go to UniProtKB:  P06210
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP06210
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Capsid protein VP3238Poliovirus 2Mutation(s): 1 
UniProt
Find proteins for P06210 (Poliovirus type 2 (strain Lansing))
Explore P06210 
Go to UniProtKB:  P06210
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP06210
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION3.1.1
MODEL REFINEMENTPHENIX1.20.1_4487-000

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Bill & Melinda Gates FoundationUnited StatesRG.IMCB.I8-TSA-083

Revision History  (Full details and data files)

  • Version 1.0: 2025-01-29
    Type: Initial release