1BVP

THE CRYSTAL STRUCTURE OF BLUETONGUE VIRUS VP7


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Work: 0.184 
  • R-Value Observed: 0.184 

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This is version 1.2 of the entry. See complete history


Literature

The crystal structure of bluetongue virus VP7.

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

(1995) Nature 373: 167-170

  • DOI: 10.1038/373167a0
  • Primary Citation of Related Structures:  
    1BVP

  • PubMed Abstract: 
  • Bluetongue virus (BTV), a representative of the orbivirus genus of the Reoviridae, is considerably larger (at 80 nm across), and structurally more complex, than any virus for which we have comprehensive structural information. Orbiviruses infect mammalian hosts through insect vectors and cause economically important diseases of domesticated animals ...

    Bluetongue virus (BTV), a representative of the orbivirus genus of the Reoviridae, is considerably larger (at 80 nm across), and structurally more complex, than any virus for which we have comprehensive structural information. Orbiviruses infect mammalian hosts through insect vectors and cause economically important diseases of domesticated animals. They possess a segmented double-stranded RNA genome within a capsid composed of four major types of polypeptide chains. An outer layer of VP2 and VP5 is removed as the virus enters the target cell, to leave an intact core within the cell. This core is 70 nm across and composed of 780 copies of VP7 (M(r) 38K) that, as trimers, form 260 'bristly' capsomeres clothing an inner scaffold constructed from VP3 (M(r) 103K). We report here the crystal structure of VP7 from BTV serotype 10, which reveals a molecular architecture not seen previously in viral structural proteins. Each subunit consists of two domains, one a beta-sandwich, the other a bundle of alpha-helices, and a short carboxy-terminal arm which might tie trimers together during capsid formation. A concentration of methionine residues at the core of the molecule could provide plasticity, relieving structural mismatches during assembly.


    Related Citations: 
    • Preliminary Crystallographic Study Bluetongue Virus Capsid Protein, Vp7
      Basak, A.K., Stuart, D., Roy, P.
      (1992) J Mol Biol 228: 687

    Organizational Affiliation

    Laboratory of Molecular Biophysics, University of Oxford, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BLUETONGUE VIRUS COAT PROTEIN VP7A [auth 1], B [auth 2], C [auth 3], D [auth 4], E [auth 5], F [auth 6]349Bluetongue virus (serotype 10 / American isolate)Mutation(s): 0 
Gene Names: Segment-7
UniProt
Find proteins for P69361 (Bluetongue virus 10 (isolate USA))
Explore P69361 
Go to UniProtKB:  P69361
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Work: 0.184 
  • R-Value Observed: 0.184 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 83.6α = 90
b = 110.2β = 103.1
c = 129.8γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 1995-02-17 
  • Released Date: 1995-06-03 
  • Deposition Author(s): Stuart, D., Grimes, J.

Revision History  (Full details and data files)

  • Version 1.0: 1995-06-03
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance