7ZPP

Cryo-EM structure of the MVV CSC intasome at 4.5 A resolution


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.50 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 

Currently 7ZPP does not have a validation slider image.


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:  
    5LLJ, 5M0Q, 5M0R, 5T3A, 7ZPP

  • 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 resolution ...

    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

    Division of Medicine, Imperial College London, W2 1PG, UK.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Pol polyprotein
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P
281Visna/maedi virus EV1 KV1772Mutation(s): 0 
Gene Names: pol
EC: 3.4.23 (PDB Primary Data), 2.7.7.49 (PDB Primary Data), 3.1.26.13 (PDB Primary Data), 3.1.13.2 (PDB Primary Data), 3.6.1.23 (PDB Primary Data), 2.7.7 (PDB Primary Data), 3.1 (PDB Primary Data), 2.7.7.7 (UniProt), 3.1.26.4 (UniProt)
UniProt
Find proteins for P35956 (Maedi visna virus (strain KV1772))
Explore P35956 
Go to UniProtKB:  P35956
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP35956
Protein Feature View
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Entity ID: 2
MoleculeChainsLengthOrganismImage
vDNA, non-transferred strandQ, S 21DNA molecule
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  • Reference Sequence

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Entity ID: 3
MoleculeChainsLengthOrganismImage
vDNA, transferred strandR, T 19DNA molecule
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.50 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Currently 7ZPP does not have a validation slider image.




Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
The Francis Crick InstituteUnited KingdomFC001061
Wellcome TrustUnited KingdomFC001061
Medical Research Council (MRC, United Kingdom)United KingdomFC001061
Cancer Research UKUnited KingdomFC001061

Revision History  (Full details and data files)

  • Version 1.0: 2022-05-11
    Type: Initial release