3DIK

Pseudo-atomic model of the HIV-1 CA hexameric lattice


Experimental Data Snapshot

  • Method: ELECTRON CRYSTALLOGRAPHY

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of full-length HIV-1 CA: a model for the mature capsid lattice

Ganser-Pornillos, B.K.Cheng, A.Yeager, M.

(2007) Cell 131: 70-79

  • DOI: 10.1016/j.cell.2007.08.018
  • Primary Citation of Related Structures:  
    3DIK

  • PubMed Abstract: 
  • The capsids of mature retroviruses perform the essential function of organizing the viral genome for efficient replication. These capsids are modeled as fullerene structures composed of closed hexameric arrays of the viral CA protein, but a high-resolution structure of the lattice has remained elusive ...

    The capsids of mature retroviruses perform the essential function of organizing the viral genome for efficient replication. These capsids are modeled as fullerene structures composed of closed hexameric arrays of the viral CA protein, but a high-resolution structure of the lattice has remained elusive. A three-dimensional map of two-dimensional crystals of the R18L mutant of HIV-1 CA was derived by electron cryocrystallography. The docking of high-resolution domain structures into the map yielded the first unambiguous model for full-length HIV-1 CA. Three important protein-protein assembly interfaces are required for capsid formation. Each CA hexamer is composed of an inner ring of six N-terminal domains and an outer ring of C-terminal domains that form dimeric linkers connecting neighboring hexamers. Interactions between the two domains of CA further stabilize the hexamer and provide a structural explanation for the mechanism of action of known HIV-1 assembly inhibitors.


    Organizational Affiliation

    The Scripps Research Institute, Department of Cell Biology, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Capsid protein p24A219Human immunodeficiency virus type 1 (NEW YORK-5 ISOLATE)Mutation(s): 0 
Gene Names: gag-pol
EC: 3.4.23.16 (UniProt), 2.7.7.49 (UniProt), 2.7.7.7 (UniProt), 3.1.26.13 (UniProt), 3.1.13.2 (UniProt), 2.7.7 (UniProt), 3.1 (UniProt)
Find proteins for P12497 (Human immunodeficiency virus type 1 group M subtype B (isolate NY5))
Explore P12497 
Go to UniProtKB:  P12497
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON CRYSTALLOGRAPHY
  • Space Group: P 6
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 92.7α = 90
b = 92.7β = 90
c = 110γ = 120

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-09-16
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2018-07-18
    Changes: Author supporting evidence, Data collection