2BUO

HIV-1 capsid C-terminal domain in complex with an inhibitor of particle assembly


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.224 
  • R-Value Observed: 0.224 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

The HIV-1 Capsid Protein C-Terminal Domain in Complex with a Virus Assembly Inhibitor

Ternois, F.Sticht, J.Duquerroy, S.Krausslich, H.-G.Rey, F.A.

(2005) Nat Struct Mol Biol 12: 678

  • DOI: 10.1038/nsmb967
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Immature HIV particles bud from infected cells after assembly at the cytoplasmic side of cellular membranes. This assembly is driven by interactions between Gag polyproteins. Mature particles, each containing a characteristic conical core, are later ...

    Immature HIV particles bud from infected cells after assembly at the cytoplasmic side of cellular membranes. This assembly is driven by interactions between Gag polyproteins. Mature particles, each containing a characteristic conical core, are later generated by proteolytic maturation of Gag in the virion. The C-terminal domain of the HIV-1 capsid protein (C-CA) has been shown to contain oligomerization determinants essential for particle assembly. Here we report the 1.7-A-resolution crystal structure of C-CA in complex with a peptide capable of inhibiting immature- and mature-like particle assembly in vitro. The peptide inserts as an amphipathic alpha-helix into a conserved hydrophobic groove of C-CA, resulting in formation of a compact five-helix bundle with altered dimeric interactions. This structure thus reveals the details of an allosteric site in the HIV capsid protein that can be targeted for antiviral therapy.


    Related Citations: 
    • A Peptide Inhibitor of HIV-1 Assembly in Vitro
      Sticht, J., Humbert, M., Findlow, S., Bodem, J., Muller, D., Dietrich, U., Werner, J., Krausslich, H.-G.
      (2005) Nat Struct Mol Biol 12: 671

    Organizational Affiliation

    Laboratoire de Virologie Moléculaire & Structurale, UMR 2472/1157 CNRS-INRA and IFR 115, Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HIV-1 CAPSID PROTEIN
A
86Human immunodeficiency virus 1Mutation(s): 0 
Gene Names: gag
Find proteins for Q72497 (Human immunodeficiency virus 1)
Go to UniProtKB:  Q72497
  • Find similar proteins by: Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
INHIBITOR OF CAPSID ASSEMBLY
T
12synthetic constructMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ACY
Query on ACY

Download CCD File 
A
ACETIC ACID
C2 H4 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.224 
  • R-Value Observed: 0.224 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.541α = 90
b = 42.541β = 90
c = 90.903γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-07-21
    Type: Initial release
  • Version 1.1: 2017-02-15
    Changes: Derived calculations, Non-polymer description, Other, Refinement description, Source and taxonomy, Version format compliance