2FXL

Urate oxidase from aspergillus flavus complexed with allantoin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Observed: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Recapture of [S]-allantoin, the product of the two-step degradation of uric acid, by urate oxidase.

Gabison, L.Chiadmi, M.Colloc'h, N.Castro, B.El Hajji, M.Prange, T.

(2006) FEBS Lett 580: 2087-2091

  • DOI: 10.1016/j.febslet.2006.03.007
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Urate oxidase from Aspergillus flavus catalyzes the degradation of uric acid to [S]-allantoin through 5-hydroxyisourate as a metastable intermediate. The second degradation step is thought either catalyzed by another specific enzyme, or spontaneous. ...

    Urate oxidase from Aspergillus flavus catalyzes the degradation of uric acid to [S]-allantoin through 5-hydroxyisourate as a metastable intermediate. The second degradation step is thought either catalyzed by another specific enzyme, or spontaneous. The structure of the enzyme was known at high resolution by X-ray diffraction of I222 crystals complexed with a purine-type inhibitor (8-azaxanthin). Analyzing the X-ray structure of urate oxidase treated with an excess of urate, the natural substrate, shows unexpectedly that the active site recaptures [S]-allantoin from the racemic end product of a second degradation step.


    Organizational Affiliation

    Laboratoire de cristallographie et RMN biologiques (UMR 8015 CNRS), Faculté de Pharmacie, Université Paris V, 4 avenue de l'Observatoire, 75270 Paris Cedex 06, France.



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
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2AL
Query on 2AL

Download CCD File 
A
1-(2,5-DIOXO-2,5-DIHYDRO-1H-IMIDAZOL-4-YL)UREA
C4 H4 N4 O3
MFAONEQLPARJAO-UHFFFAOYSA-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: 1.76 Å
  • R-Value Observed: 0.191 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 80.364α = 90
b = 96.086β = 90
c = 105.368γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SHELXLrefinement
SHELXL-97refinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-05-23
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2018-02-28
    Changes: Structure summary