1U7K

Structure of a hexameric N-terminal domain from murine leukemia virus capsid


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.210 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

High-resolution structure of a retroviral capsid hexameric amino-terminal domain.

Mortuza, G.B.Haire, L.F.Stevens, A.Smerdon, S.J.Stoye, J.P.Taylor, I.A.

(2004) Nature 431: 481-485

  • DOI: 10.1038/nature02915

  • PubMed Abstract: 
  • Retroviruses are the aetiological agents of a range of human diseases including AIDS and T-cell leukaemias. They follow complex life cycles, which are still only partly understood at the molecular level. Maturation of newly formed retroviral particle ...

    Retroviruses are the aetiological agents of a range of human diseases including AIDS and T-cell leukaemias. They follow complex life cycles, which are still only partly understood at the molecular level. Maturation of newly formed retroviral particles is an essential step in production of infectious virions, and requires proteolytic cleavage of Gag polyproteins in the immature particle to form the matrix, capsid and nucleocapsid proteins present in the mature virion. Capsid proteins associate to form a dense viral core that may be spherical, cylindrical or conical depending on the genus of the virus. Nonetheless, these assemblies all appear to be composed of a lattice formed from hexagonal rings, each containing six capsid monomers. Here, we describe the X-ray structure of an individual hexagonal assembly from N-tropic murine leukaemia virus (N-MLV). The interface between capsid monomers is generally polar, consistent with weak interactions within the hexamer. Similar architectures are probably crucial for the regulation of capsid assembly and disassembly in all retroviruses. Together, these observations provide new insights into retroviral uncoating and how cellular restriction factors may interfere with viral replication.


    Organizational Affiliation

    Division of Protein Structure, National Institute for Medical Research, The Ridgeway, Mill Hill, London NW7 1AA, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Gag polyprotein
A, B, C, D, E, F
131AKV murine leukemia virusMutation(s): 0 
Gene Names: gag
Find proteins for P03336 (AKV murine leukemia virus)
Go to UniProtKB:  P03336
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D, E, F
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.210 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 85.995α = 90.00
b = 78.340β = 118.86
c = 85.766γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
DENZOdata reduction
SOLVEphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-10-05
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance