2WUX

the crystal structure of recombinant baculovirus polyhedra


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.838 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.164 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

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: 10.1038/emboj.2009.352
  • Primary Citation of Related Structures:  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), ...

    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.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
POLYHEDRIN
A
245Autographa californica nuclear polyhedrosis virusGene Names: PH (P29, POLH)
Find proteins for P04871 (Autographa californica nuclear polyhedrosis virus)
Go to UniProtKB:  P04871
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.838 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.164 
  • Space Group: I 2 3
Unit Cell:
Length (Å)Angle (°)
a = 102.582α = 90.00
b = 102.582β = 90.00
c = 102.582γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
SCALEPACKdata scaling
DENZOdata reduction
SHARPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-12-15
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance