6PUZ

Structure of HIV cleaved synaptic complex (CSC) intasome bound with magnesium and INSTI XZ446 (compound 4f)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Starting Models: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for strand-transfer inhibitor binding to HIV intasomes.

Passos, D.O.Li, M.Jozwik, I.K.Zhao, X.Z.Santos-Martins, D.Yang, R.Smith, S.J.Jeon, Y.Forli, S.Hughes, S.H.Burke Jr., T.R.Craigie, R.Lyumkis, D.

(2020) Science 367: 810-814

  • DOI: https://doi.org/10.1126/science.aay8015
  • Primary Citation of Related Structures:  
    6PUT, 6PUW, 6PUY, 6PUZ, 6V3K

  • PubMed Abstract: 

    The HIV intasome is a large nucleoprotein assembly that mediates the integration of a DNA copy of the viral genome into host chromatin. Intasomes are targeted by the latest generation of antiretroviral drugs, integrase strand-transfer inhibitors (INSTIs). Challenges associated with lentiviral intasome biochemistry have hindered high-resolution structural studies of how INSTIs bind to their native drug target. Here, we present high-resolution cryo-electron microscopy structures of HIV intasomes bound to the latest generation of INSTIs. These structures highlight how small changes in the integrase active site can have notable implications for drug binding and design and provide mechanistic insights into why a leading INSTI retains efficacy against a broad spectrum of drug-resistant variants. The data have implications for expanding effective treatments available for HIV-infected individuals.


  • Organizational Affiliation

    The Salk Institute for Biological Studies, Laboratory of Genetics, La Jolla, CA 92037, USA.


Macromolecules

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Chimeric Sso7d and HIV-1 integrase
A, B, C, D
383Saccharolobus solfataricus P2Human immunodeficiency virus 1
This entity is chimeric
Mutation(s): 0 
Gene Names: sso7dsso7d-1SSO10610
UniProt
Find proteins for P39476 (Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2))
Explore P39476 
Go to UniProtKB:  P39476
Find proteins for P12497 (Human immunodeficiency virus type 1 group M subtype B (isolate NY5))
Explore P12497 
Go to UniProtKB:  P12497
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsP12497P39476
Sequence Annotations
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  • Reference Sequence
Find similar nucleic acids by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains LengthOrganismImage
viral DNA non-transferred strand27Human immunodeficiency virus 1
Sequence Annotations
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  • Reference Sequence

Find similar nucleic acids by:  Sequence   |   3D Structure  

Entity ID: 3
MoleculeChains LengthOrganismImage
viral DNA transferred strand25Human immunodeficiency virus 1
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX1.16
RECONSTRUCTIONcisTEM1.0 beta

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesR01 AI136680
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM069832
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesR01 AI146017

Revision History  (Full details and data files)

  • Version 1.0: 2020-02-12
    Type: Initial release
  • Version 1.1: 2020-02-26
    Changes: Database references
  • Version 1.2: 2024-03-20
    Changes: Data collection, Database references, Derived calculations, Refinement description