1OGP

The crystal structure of plant sulfite oxidase provides insight into sulfite oxidation in plants and animals


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.235 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Crystal Structure of Plant Sulfite Oxidase Provides Insights Into Sulfite Oxidation in Plants and Animals

Schrader, N.Fischer, K.Theis, K.Mendel, R.R.Schwarz, G.Kisker, C.

(2003) Structure 11: 1251


  • PubMed Abstract: 
  • The molybdenum cofactor (Moco) containing sulfite oxidase (SO) from Arabidopsis thaliana has recently been identified and biochemically characterized. The enzyme is found in peroxisomes and believed to detoxify excess sulfite that is produced during ...

    The molybdenum cofactor (Moco) containing sulfite oxidase (SO) from Arabidopsis thaliana has recently been identified and biochemically characterized. The enzyme is found in peroxisomes and believed to detoxify excess sulfite that is produced during sulfur assimilation, or due to air pollution. Plant SO (PSO) is homodimeric and homologous to animal SO, but contains only a single Moco domain without an additional redox center. Here, we present the first crystal structure of a plant Moco enzyme, the apo-state of Arabidopsis SO at 2.6 A resolution. The overall fold and coordination of the Moco are similar to chicken SO (CSO). Comparisons of conserved surface residues and the charge distribution in PSO and CSO reveal major differences near the entrance to both active sites reflecting different electron acceptors. Arg374 has been identified as an important substrate binding residue due to its conformational change when compared to the sulfate bound structure of CSO.


    Organizational Affiliation

    Department of Pharmacological Sciences, Center for Structural Biology, State University of New York at Stony Brook, Stony Brook, NY 11794, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SULFITE OXIDASE
A, B, C, D, E, F
393Arabidopsis thalianaGene Names: SOX (MCP)
EC: 1.8.3.1
Find proteins for Q9S850 (Arabidopsis thaliana)
Go to UniProtKB:  Q9S850
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
A, B, C, D, E, F
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
CS
Query on CS

Download SDF File 
Download CCD File 
A, B, C, D, E, F
CESIUM ION
Cs
NCMHKCKGHRPLCM-UHFFFAOYSA-N
 Ligand Interaction
MTQ
Query on MTQ

Download SDF File 
Download CCD File 
A, B, C, D, E, F
(MOLYBDOPTERIN-S,S)-DIOXO-THIO-MOLYBDENUM(VI)
C10 H8 Mo N5 O8 P S2
IXNYCVJPVGNGQC-NRYJBHHQSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.235 
  • Space Group: C 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 222.918α = 90.00
b = 351.271β = 90.00
c = 158.282γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
MOLREPphasing
BEASTphasing
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-10-09
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance