the crystal structure of wild-type baculovirus polyhedra

Experimental Data Snapshot

  • Resolution: 3.09 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.206 

wwPDB Validation   3D Report Full Report

This is version 1.3 of the entry. See complete history


How Baculovirus Polyhedra Fit Square Pegs Into Round Holes to Robustly Package Viruses.

Ji, X.Sutton, G.Evans, G.Axford, D.Owen, R.Stuart, D.I.

(2010) EMBO J 29: 505

  • DOI: https://doi.org/10.1038/emboj.2009.352
  • Primary Citation of Related Structures:  
    2WUX, 2WUY

  • PubMed Abstract: 

    Natural protein crystals (polyhedra) armour certain viruses, allowing them to survive for years under hostile conditions. We have determined the structure of polyhedra of the baculovirus Autographa californica multiple nucleopolyhedrovirus (AcMNPV), revealing a highly symmetrical covalently cross-braced robust lattice, the subunits of which possess a flexible adaptor enabling this supra-molecular assembly to specifically entrap massive baculoviruses. Inter-subunit chemical switches modulate the controlled release of virus particles in the unusual high pH environment of the target insect's gut. Surprisingly, the polyhedrin subunits are more similar to picornavirus coat proteins than to the polyhedrin of cytoplasmic polyhedrosis virus (CPV). It is, therefore, remarkable that both AcMNPV and CPV polyhedra possess identical crystal lattices and crystal symmetry. This crystalline arrangement must be particularly well suited to the functional requirements of the polyhedra and has been either preserved or re-selected during evolution. The use of flexible adaptors to generate a powerful system for packaging irregular particles is characteristic of the AcMNPV polyhedrin and may provide a vehicle to sequester a wide range of objects such as biological nano-particles.

  • Organizational Affiliation

    Division of Structural Biology, University of Oxford, Henry Wellcome Building of Genomic Medicine, Roosevelt Drive, Oxford, UK.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
POLYHEDRIN245Autographa californica nucleopolyhedrovirusMutation(s): 0 
Find proteins for P04871 (Autographa californica nuclear polyhedrosis virus)
Explore P04871 
Go to UniProtKB:  P04871
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP04871
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 3.09 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.206 
  • Space Group: I 2 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 101.562α = 90
b = 101.562β = 90
c = 101.562γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-12-15
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2023-12-20
    Changes: Data collection, Database references, Other, Refinement description