1R51

URATE OXIDASE FROM ASPERGILLUS FLAVUS COMPLEXED WITH ITS INHIBITOR 8-AZAXANTHIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.234 
  • R-Value Observed: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Complexed and ligand-free high-resolution structures of urate oxidase (Uox) from Aspergillus flavus: a reassignment of the active-site binding mode.

Retailleau, P.Colloc'h, N.Vivares, D.Bonnete, F.Castro, B.El-Hajji, M.Mornon, J.P.Monard, G.Prange, T.

(2004) Acta Crystallogr D Biol Crystallogr 60: 453-462

  • DOI: 10.1107/S0907444903029718
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • High-resolution X-ray structures of the complexes of Aspergillus flavus urate oxidase (Uox) with three inhibitors, 8-azaxanthin (AZA), 9-methyl uric acid (MUA) and oxonic acid (OXC), were determined in an orthorhombic space group (I222). In addition, ...

    High-resolution X-ray structures of the complexes of Aspergillus flavus urate oxidase (Uox) with three inhibitors, 8-azaxanthin (AZA), 9-methyl uric acid (MUA) and oxonic acid (OXC), were determined in an orthorhombic space group (I222). In addition, the ligand-free enzyme was also crystallized in a monoclinic form (P2(1)) and its structure determined. Higher accuracy in the three new enzyme-inhibitor complex structures (Uox-AZA, Uox-MUA and Uox-OXC) with respect to the previously determined structure of Uox-AZA (PDB code 1uox) leads to a reversed position of the inhibitor in the active site of the enzyme. The corrected anchoring of the substrate (uric acid) allows an improvement in the understanding of the enzymatic mechanism of urate oxidase.


    Related Citations: 
    • Crystal Structure of the Protein Drug Urate Oxidase-Inhibitor Complex at 2.05 A Resolution
      Colloc'h, N., El Hajji, M., Bachet, B., L'Hermite, G., Schiltz, M., Prange, T., Castro, B., Mornon, J.P.
      (1997) Nat Struct Biol 4: 947

    Organizational Affiliation

    LURE, Centre Universitaire Paris-Sud, Bâtiment 209D, BP 34, 91898 Orsay CEDEX, France. retailleau@lure.u-psud.fr



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Uricase
A
301Aspergillus flavusMutation(s): 1 
Gene Names: uaZuox
EC: 1.7.3.3
Find proteins for Q00511 (Aspergillus flavus)
Go to UniProtKB:  Q00511
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
AZA
Query on AZA

Download CCD File 
A
8-AZAXANTHINE
C4 H3 N5 O2
KVGVQTOQSNJTJI-UHFFFAOYSA-N
 Ligand Interaction
CYS
Query on CYS

Download CCD File 
A
CYSTEINE
C3 H7 N O2 S
XUJNEKJLAYXESH-REOHCLBHSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SAC
Query on SAC
AL-PEPTIDE LINKINGC5 H9 N O4SER
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.234 
  • R-Value Observed: 0.183 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 81.3α = 90
b = 96.3β = 90
c = 105.6γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SHELXLrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-03-02
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description
  • Version 1.4: 2018-02-28
    Changes: Database references, Structure summary