1P7N

Dimeric Rous Sarcoma virus Capsid protein structure with an upstream 25-amino acid residue extension of C-terminal of Gag p10 protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.298 
  • R-Value Work: 0.260 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Dimeric rous sarcoma virus capsid protein structure relevant to immature gag assembly

Nandhagopal, N.Simpson, A.A.Johnson, M.C.Francisco, A.B.Schatz, G.W.Rossmann, M.G.Vogt, V.M.

(2004) J.Mol.Biol. 335: 275-282


  • PubMed Abstract: 
  • The structure of the N-terminal domain (NTD) of Rous sarcoma virus (RSV) capsid protein (CA), with an upstream 25 amino acid residue extension corresponding to the C-terminal portion of the Gag p10 protein, has been determined by X-ray crystallograph ...

    The structure of the N-terminal domain (NTD) of Rous sarcoma virus (RSV) capsid protein (CA), with an upstream 25 amino acid residue extension corresponding to the C-terminal portion of the Gag p10 protein, has been determined by X-ray crystallography. Purified Gag proteins of retroviruses can assemble in vitro into virus-like particles closely resembling in vivo-assembled immature virus particles, but without a membrane. When the 25 amino acid residues upstream of CA are deleted, Gag assembles into tubular particles. The same phenotype is observed in vivo. Thus, these residues act as a "shape determinant" promoting spherical assembly, when they are present, or tubular assembly, when they are absent. We show that, unlike the NTD on its own, the extended NTD protein has no beta-hairpin loop at the N terminus of CA and that the molecule forms a dimer in which the amino-terminal extension forms the interface between monomers. Since dimerization of Gag has been inferred to be a critical step in assembly of spherical, immature Gag particles, the dimer interface may represent a structural feature that is essential in retrovirus assembly.


    Organizational Affiliation

    Department of Biological Sciences, Lilly Hall, Purdue University, 915 W. State Street, West Lafayette, IN 47907-2054, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GAG POLYPROTEIN CAPSID PROTEIN P27
A
176Rous sarcoma virus (strain Prague C)Mutation(s): 0 
Gene Names: gag
Find proteins for P03322 (Rous sarcoma virus (strain Prague C))
Go to UniProtKB:  P03322
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.298 
  • R-Value Work: 0.260 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 47.870α = 90.00
b = 47.870β = 90.00
c = 170.390γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
SCALEPACKdata scaling
DENZOdata reduction
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-12-23
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance