4UHW

Human aldehyde oxidase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.191 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Structural Insights Into Xenobiotic and Inhibitor Binding to Human Aldehyde Oxidase

Coelho, C.Foti, A.Hartmann, T.Santos-Silva, T.Leimkuhler, S.Romao, M.J.

(2015) Nat Chem Biol 11: 779

  • DOI: https://doi.org/10.1038/nchembio.1895
  • Primary Citation of Related Structures:  
    4UHW, 4UHX

  • PubMed Abstract: 

    Aldehyde oxidase (AOX) is a xanthine oxidase (XO)-related enzyme with emerging importance due to its role in the metabolism of drugs and xenobiotics. We report the first crystal structures of human AOX1, substrate free (2.6-Å resolution) and in complex with the substrate phthalazine and the inhibitor thioridazine (2.7-Å resolution). Analysis of the protein active site combined with steady-state kinetic studies highlight the unique features, including binding and substrate orientation at the active site, that characterize human AOX1 as an important drug-metabolizing enzyme. Structural analysis of the complex with the noncompetitive inhibitor thioridazine revealed a new, unexpected and fully occupied inhibitor-binding site that is structurally conserved among mammalian AOXs and XO. The new structural insights into the catalytic and inhibition mechanisms of human AOX that we now report will be of great value for the rational analysis of clinical drug interactions involving inhibition of AOX1 and for the prediction and design of AOX-stable putative drugs.


  • Organizational Affiliation

    Research Unit on Applied Molecular Biosciences-Rede de Química e Tecnologia (UCIBIO-REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ALDEHYDE OXIDASE1,338Homo sapiensMutation(s): 0 
EC: 1.2.3.1 (PDB Primary Data), 1.17.3 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for Q06278 (Homo sapiens)
Explore Q06278 
Go to UniProtKB:  Q06278
PHAROS:  Q06278
GTEx:  ENSG00000138356 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ06278
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
FAD
Query on FAD

Download Ideal Coordinates CCD File 
H [auth A]FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N
MTE
Query on MTE

Download Ideal Coordinates CCD File 
F [auth A]PHOSPHONIC ACIDMONO-(2-AMINO-5,6-DIMERCAPTO-4-OXO-3,7,8A,9,10,10A-HEXAHYDRO-4H-8-OXA-1,3,9,10-TETRAAZA-ANTHRACEN-7-YLMETHYL)ESTER
C10 H14 N5 O6 P S2
HPEUEJRPDGMIMY-IFQPEPLCSA-N
FES
Query on FES

Download Ideal Coordinates CCD File 
D [auth A],
E [auth A]
FE2/S2 (INORGANIC) CLUSTER
Fe2 S2
NIXDOXVAJZFRNF-UHFFFAOYSA-N
MOS
Query on MOS

Download Ideal Coordinates CCD File 
G [auth A]DIOXOTHIOMOLYBDENUM(VI) ION
H Mo O2 S
BDSRWPHSAKXXRG-UHFFFAOYSA-M
MLI
Query on MLI

Download Ideal Coordinates CCD File 
B [auth A],
C [auth A]
MALONATE ION
C3 H2 O4
OFOBLEOULBTSOW-UHFFFAOYSA-L
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.191 
  • Space Group: P 42 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 148.93α = 90
b = 148.93β = 90
c = 133.25γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-09-02
    Type: Initial release
  • Version 1.1: 2015-09-09
    Changes: Database references
  • Version 1.2: 2015-09-30
    Changes: Database references
  • Version 1.3: 2024-01-10
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description