2ITG

CATALYTIC DOMAIN OF HIV-1 INTEGRASE: ORDERED ACTIVE SITE IN THE F185H CONSTRUCT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Work: 0.200 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

The catalytic domain of human immunodeficiency virus integrase: ordered active site in the F185H mutant.

Bujacz, G.Alexandratos, J.Qing, Z.L.Clement-Mella, C.Wlodawer, A.

(1996) FEBS Lett 398: 175-178

  • DOI: https://doi.org/10.1016/s0014-5793(96)01236-7
  • Primary Citation of Related Structures:  
    2ITG

  • PubMed Abstract: 

    We solved the structure and traced the complete active site of the catalytic domain of the human immunodeficiency virus type 1 integrase (HIV-1 IN) with the F185H mutation. The only previously available crystal structure, the F185K mutant of this domain, lacks one of the catalytically important residues, E152, located in a stretch of 12 disordered residues [Dyda et al. (1994) Science 266, 1981-1986]. It is clear, however, that the active site of HIV-1 IN observed in either structure cannot correspond to that of the functional enzyme, since the cluster of three conserved carboxylic acids does not create a proper metal-binding site. The conformation of the loop was compared with two different conformations found in the catalytic domain of the related avian sarcoma virus integrase [Bujacz et al. (1995) J. Mol. Biol. 253, 333-346]. Flexibility of the active site region of integrases may be required in order for the enzyme to assume a functional conformation in the presence of substrate and/or cofactors.


  • Organizational Affiliation

    Macromolecular Structure Laboratory, NCI-Frederick Cancer Research and Development Center, Frederick, MD 21702, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
HUMAN IMMUNODEFICIENCY VIRUS-1 INTEGRASE163Human immunodeficiency virus 1Mutation(s): 1 
UniProt
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 GroupP12497
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Work: 0.200 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.4α = 90
b = 72.4β = 90
c = 65.56γ = 120
Software Package:
Software NamePurpose
PROLSQrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-03-12
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2021-11-03
    Changes: Database references, Other
  • Version 1.4: 2023-08-09
    Changes: Refinement description