1F7N

CRYSTAL STRUCTURES OF FELINE IMMUNODEFICIENCY VIRUS DUTP PYROPHOSPHATASE AND ITS NUCLEOTIDE COMPLEXES IN THREE CRYSTAL FORMS.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Observed: 0.216 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structures of feline immunodeficiency virus dUTP pyrophosphatase and its nucleotide complexes in three crystal forms.

Prasad, G.S.Stura, E.A.Elder, J.H.Stout, C.D.

(2000) Acta Crystallogr D Biol Crystallogr 56: 1100-1109

  • DOI: https://doi.org/10.1107/s0907444900009197
  • Primary Citation of Related Structures:  
    1F7D, 1F7K, 1F7N, 1F7O, 1F7P, 1F7Q, 1F7R

  • PubMed Abstract: 

    dUTP pyrophosphatase (dUTPase) cleaves the alpha-beta phosphodiester of dUTP to form pyrophosphate and dUMP, preventing incorporation of uracil into DNA and providing the substrate for thymine synthesis. Seven crystal structures of feline immunodeficiency virus (FIV) dUTPase in three crystal forms have been determined, including complexes with substrate (dUTP), product (dUMP) or inhibitor (dUDP) bound. The native enzyme has been refined at 1.40 A resolution in a hexagonal crystal form and at 2.3 A resolution in an orthorhombic crystal form. In the dUDP complex in a cubic crystal form refined at 2.5 A resolution, the C-terminal conserved P-loop motif is fully ordered. The analysis defines the roles of five sequence motifs in interaction with uracil, deoxyribose and the alpha-, beta- and gamma-phosphates. The enzyme utilizes adaptive recognition to bind the alpha- and beta-phosphates. In particular, the alpha-beta phosphodiester adopts an unfavorable eclipsed conformation in the presence of the P-loop. This conformation may be relevant to the mechanism of alpha-beta phosphodiester bond cleavage.


  • Organizational Affiliation

    Department of Molecular Biology, The Scripps Research Institute, La Jolla, CA 92037-1093, USA. prasad@scripps.edu


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
POL POLYPROTEIN
A, B
136Feline immunodeficiency virusMutation(s): 0 
EC: 3.6.1.23
UniProt
Find proteins for P16088 (Feline immunodeficiency virus (isolate Petaluma))
Explore P16088 
Go to UniProtKB:  P16088
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP16088
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Observed: 0.216 
  • Space Group: P 63
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.13α = 90
b = 79.13β = 90
c = 87.21γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
MOSFLMdata reduction
CCP4data scaling
ROTAVATAdata scaling
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-09-06
    Type: Initial release
  • Version 1.1: 2007-10-16
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2017-10-04
    Changes: Refinement description
  • Version 1.4: 2024-02-07
    Changes: Data collection, Database references, Derived calculations