5T3A

Maedi-Visna virus (MVV) integrase CCD-CTD (residues 60-275)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.501 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.179 

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

    Chromatin Structure and Mobile DNA, The Francis Crick Institute, London, NW1 1AT, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
integrase
A
222Maedi 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 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ACT
Query on ACT

Download SDF File 
Download CCD File 
A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
MES
Query on MES

Download SDF File 
Download CCD File 
A
2-(N-MORPHOLINO)-ETHANESULFONIC ACID
C6 H13 N O4 S
SXGZJKUKBWWHRA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.501 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.179 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 78.050α = 90.00
b = 124.830β = 90.00
c = 62.380γ = 90.00
Software Package:
Software NamePurpose
Aimlessdata scaling
PHENIXrefinement
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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