1AHS

CRYSTAL STRUCTURE OF THE TOP DOMAIN OF AFRICAN HORSE SICKNESS VIRUS VP7


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Work: 0.213 
  • R-Value Observed: 0.213 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of the top domain of African horse sickness virus VP7: comparisons with bluetongue virus VP7.

Basak, A.K.Gouet, P.Grimes, J.Roy, P.Stuart, D.

(1996) J Virol 70: 3797-3806

  • DOI: 10.1128/JVI.70.6.3797-3806.1996
  • Primary Citation of Related Structures:  
    1AHS

  • PubMed Abstract: 
  • The baculovirus-expressed core protein VP7 of African horse sickness virus serotype 4 (AHSV-4) has been purified to homogeneity and crystallized in the presence of 2.8 M urea. The X-ray structure has been solved to a 2.3-Angstroms (1 Angstrom = 0.1 nm) resolution with an Rfactor of 19 ...

    The baculovirus-expressed core protein VP7 of African horse sickness virus serotype 4 (AHSV-4) has been purified to homogeneity and crystallized in the presence of 2.8 M urea. The X-ray structure has been solved to a 2.3-Angstroms (1 Angstrom = 0.1 nm) resolution with an Rfactor of 19.8%. The structure of AHSV VP7 reveals that during crystallization, the two-domain protein is cleaved and only the top domain remains. A similar problem was encountered previously with bluetongue virus (BTV) VP7 (whose structure has been reported), showing that the connections between the top and the bottom domains are rather weak for these two distinct orbiviruses. The top domains of both BTV and AHSV VP7 are trimeric and structurally very similar. The electron density maps show that they both possess an extra electron density feature along their molecular threefold axes, which is most likely due to an unidentified ion. The characteristics of the molecular surface of BTV and AHSV VP7 suggest why AHSV VP7 is much less soluble than BTV VP7 and indicate the possibility of attachment to the cell via attachment of an Arg-Gly-Asp (RGD) motif in the top domain of VP7 to a cellular integrin for both of these orbiviruses.


    Related Citations: 
    • The Crystal Structure of Bluetongue Virus Vp7
      Grimes, J., Basak, A.K., Roy, P., Stuart, D.
      (1995) Nature 373: 167

    Organizational Affiliation

    The Laboratory of Molecular Biophysics, University of Oxford, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
AFRICAN HORSE SICKNESS VIRUS (SEROTYPE 4) VP7A, B, C126African horse sickness virusMutation(s): 0 
UniProt
Find proteins for P36325 (African horse sickness virus 4)
Explore P36325 
Go to UniProtKB:  P36325
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP36325
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Work: 0.213 
  • R-Value Observed: 0.213 
  • Space Group: I 4
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 157.2α = 90
b = 157.2β = 90
c = 57.7γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1996-11-08
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance