5EPG

Human aldehyde oxidase SNP S1271L


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.39 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.162 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Optimization of the Expression of Human Aldehyde Oxidase for Investigations of Single-Nucleotide Polymorphisms.

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

(2016) Drug Metab.Dispos. 44: 1277-1285

  • DOI: 10.1124/dmd.115.068395

  • PubMed Abstract: 
  • Aldehyde oxidase (AOX1) is an enzyme with broad substrate specificity, catalyzing the oxidation of a wide range of endogenous and exogenous aldehydes as well as N-heterocyclic aromatic compounds. In humans, the enzyme's role in phase I drug metabolis ...

    Aldehyde oxidase (AOX1) is an enzyme with broad substrate specificity, catalyzing the oxidation of a wide range of endogenous and exogenous aldehydes as well as N-heterocyclic aromatic compounds. In humans, the enzyme's role in phase I drug metabolism has been established and its importance is now emerging. However, the true physiologic function of AOX1 in mammals is still unknown. Further, numerous single-nucleotide polymorphisms (SNPs) have been identified in human AOX1. SNPs are a major source of interindividual variability in the human population, and SNP-based amino acid exchanges in AOX1 reportedly modulate the catalytic function of the enzyme in either a positive or negative fashion. For the reliable analysis of the effect of amino acid exchanges in human proteins, the existence of reproducible expression systems for the production of active protein in ample amounts for kinetic, spectroscopic, and crystallographic studies is required. In our study we report an optimized expression system for hAOX1 in Escherichia coli using a codon-optimized construct. The codon-optimization resulted in an up to 15-fold increase of protein production and a simplified purification procedure. The optimized expression system was used to study three SNPs that result in amino acid changes C44W, G1269R, and S1271L. In addition, the crystal structure of the S1271L SNP was solved. We demonstrate that the recombinant enzyme can be used for future studies to exploit the role of AOX in drug metabolism, and for the identification and synthesis of new drugs targeting AOX when combined with crystallographic and modeling studies.


    Organizational Affiliation

    Department of Molecular Enzymology, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany (A.F., T.H., S.L.); UCIBIO-REQUIMTE-Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal (C.C., T.S.-S., M.J.R.).




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Aldehyde oxidase
A
1338Homo sapiensMutation(s): 1 
Gene Names: AOX1 (AO)
EC: 1.2.3.1
Find proteins for Q06278 (Homo sapiens)
Go to Gene View: AOX1
Go to UniProtKB:  Q06278
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FAD
Query on FAD

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Download CCD File 
A
FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N
 Ligand Interaction
MTE
Query on MTE

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Download CCD File 
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
 Ligand Interaction
FES
Query on FES

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Download CCD File 
A
FE2/S2 (INORGANIC) CLUSTER
Fe2 S2
NIXDOXVAJZFRNF-UHFFFAOYSA-N
 Ligand Interaction
MOS
Query on MOS

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Download CCD File 
A
DIOXOTHIOMOLYBDENUM(VI) ION
H Mo O2 S
BDSRWPHSAKXXRG-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.39 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.162 
  • Space Group: P 42 21 2
Unit Cell:
Length (Å)Angle (°)
a = 147.439α = 90.00
b = 147.439β = 90.00
c = 131.713γ = 90.00
Software Package:
Software NamePurpose
Aimlessdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
PHASERphasing
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-02-17
    Type: Initial release
  • Version 1.1: 2016-07-20
    Type: Database references