1DGJ

CRYSTAL STRUCTURE OF THE ALDEHYDE OXIDOREDUCTASE FROM DESULFOVIBRIO DESULFURICANS ATCC 27774


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.164 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Gene sequence and crystal structure of the aldehyde oxidoreductase from Desulfovibrio desulfuricans ATCC 27774.

Rebelo, J.Macieira, S.Dias, J.M.Huber, R.Ascenso, C.S.Rusnak, F.Moura, J.J.Moura, I.Romao, M.J.

(2000) J.Mol.Biol. 297: 135-146

  • DOI: 10.1006/jmbi.2000.3552

  • PubMed Abstract: 
  • The aldehyde oxidoreductase (MOD) isolated from the sulfate reducer Desulfovibrio desulfuricans (ATCC 27774) is a member of the xanthine oxidase family of molybdenum-containing enzymes. It has substrate specificity similar to that of the homologous e ...

    The aldehyde oxidoreductase (MOD) isolated from the sulfate reducer Desulfovibrio desulfuricans (ATCC 27774) is a member of the xanthine oxidase family of molybdenum-containing enzymes. It has substrate specificity similar to that of the homologous enzyme from Desulfovibrio gigas (MOP) and the primary sequences from both enzymes show 68 % identity. The enzyme was crystallized in space group P6(1)22, with unit cell dimensions of a=b=156.4 A and c=177.1 A, and diffraction data were obtained to beyond 2.8 A. The crystal structure was solved by Patterson search techniques using the coordinates of the D. gigas enzyme. The overall fold of the D. desulfuricans enzyme is very similar to MOP and the few differences are mapped to exposed regions of the molecule. This is reflected in the electrostatic potential surfaces of both homologous enzymes, one exception being the surface potential in a region identifiable as the putative docking site of the physiological electron acceptor. Other essential features of the MOP structure, such as residues of the active-site cavity, are basically conserved in MOD. Two mutations are located in the pocket bearing a chain of catalytically relevant water molecules. As deduced from this work, both these enzymes are very closely related in terms of their sequences as well as 3D structures. The comparison allowed confirmation and establishment of features that are essential for their function; namely, conserved residues in the active-site, catalytically relevant water molecules and recognition of the physiological electron acceptor docking site.


    Organizational Affiliation

    Departamento de Química Centro de Química Fina e Biotecnologia, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ALDEHYDE OXIDOREDUCTASE
A
907Desulfovibrio desulfuricansGene Names: MOD
Find proteins for Q9REC4 (Desulfovibrio desulfuricans)
Go to UniProtKB:  Q9REC4
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MCN
Query on MCN

Download SDF File 
Download CCD File 
A
PTERIN CYTOSINE DINUCLEOTIDE
C19 H22 N8 O13 P2 S2
RBWYFPNWTRZKKZ-LOIMWUFNSA-N
 Ligand Interaction
FES
Query on FES

Download SDF File 
Download CCD File 
A
FE2/S2 (INORGANIC) CLUSTER
Fe2 S2
NIXDOXVAJZFRNF-UHFFFAOYSA-N
 Ligand Interaction
2MO
Query on 2MO

Download SDF File 
Download CCD File 
A
MOLYBDENUM (IV)OXIDE
Mo O2
QXYJCZRRLLQGCR-OMUOWVJPAU
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.164 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 156.639α = 90.00
b = 156.639β = 90.00
c = 177.149γ = 120.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DENZOdata reduction
AMoREphasing
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-03-22
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance