5LLJ

Maedi-Visna virus (MVV) integrase C-terminal domain (residues 220-276)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.78 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

A supramolecular assembly mediates lentiviral DNA integration.

Ballandras-Colas, A.Maskell, D.P.Serrao, E.Locke, J.Swuec, P.Jonsson, S.R.Kotecha, A.Cook, N.J.Pye, V.E.Taylor, I.A.Andresdottir, V.Engelman, A.N.Costa, A.Cherepanov, P.

(2017) Science 355: 93-95

  • DOI: 10.1126/science.aah7002
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Retroviral integrase (IN) functions within the intasome nucleoprotein complex to catalyze insertion of viral DNA into cellular chromatin. Using cryo-electron microscopy, we now visualize the functional maedi-visna lentivirus intasome at 4.9 angstrom ...

    Retroviral integrase (IN) functions within the intasome nucleoprotein complex to catalyze insertion of viral DNA into cellular chromatin. Using cryo-electron microscopy, we now visualize the functional maedi-visna lentivirus intasome at 4.9 angstrom resolution. The intasome comprises a homo-hexadecamer of IN with a tetramer-of-tetramers architecture featuring eight structurally distinct types of IN protomers supporting two catalytically competent subunits. The conserved intasomal core, previously observed in simpler retroviral systems, is formed between two IN tetramers, with a pair of C-terminal domains from flanking tetramers completing the synaptic interface. Our results explain how HIV-1 IN, which self-associates into higher-order multimers, can form a functional intasome, reconcile the bulk of early HIV-1 IN biochemical and structural data, and provide a lentiviral platform for design of HIV-1 IN inhibitors.


    Organizational Affiliation

    Institute for Experimental Pathology, University of Iceland, Keldur, 112 Reykjavik, Iceland.,Macromolecular Structure Laboratory, The Francis Crick Institute, London, NW1 1AT, UK.,Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Harvard Medical School, Boston, MA 02115, USA.,Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, OX3 7BN, UK.,Chromatin Structure and Mobile DNA, The Francis Crick Institute, London, NW1 1AT, UK.,Division of Medicine, Imperial College London, W2 1PG, UK.,Macromolecular Machines Laboratory, The Francis Crick Institute, London, NW1 1AT, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Integrase
A, B
58Maedi visna virus (strain KV1772)Mutation(s): 0 
Gene Names: pol
Find proteins for P35956 (Maedi visna virus (strain KV1772))
Go to UniProtKB:  P35956
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
B
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.78 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.186 
  • Space Group: P 42 21 2
Unit Cell:
Length (Å)Angle (°)
a = 64.250α = 90.00
b = 64.250β = 90.00
c = 72.330γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
PHASERphasing
Aimlessdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-01-18
    Type: Initial release