2CB2

Sulfur Oxygenase Reductase from Acidianus Ambivalens


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

X-Ray Structure of a Self-Compartmentalizing Sulfur Cycle Metalloenzyme

Urich, T.Gomes, C.M.Kletzin, A.Frazao, C.

(2006) Science 311: 996

  • DOI: 10.1126/science.1120306
  • Also Cited By: 2YAX, 2YAW, 2YAV

  • PubMed Abstract: 
  • Numerous microorganisms oxidize sulfur for energy conservation and contribute to the global biogeochemical sulfur cycle. We have determined the 1.7 angstrom-resolution structure of the sulfur oxygenase reductase from the thermoacidophilic archaeon Ac ...

    Numerous microorganisms oxidize sulfur for energy conservation and contribute to the global biogeochemical sulfur cycle. We have determined the 1.7 angstrom-resolution structure of the sulfur oxygenase reductase from the thermoacidophilic archaeon Acidianus ambivalens, which catalyzes an oxygen-dependent disproportionation of elemental sulfur. Twenty-four monomers form a large hollow sphere enclosing a positively charged nanocompartment. Apolar channels provide access for linear sulfur species. A cysteine persulfide and a low-potential mononuclear non-heme iron site ligated by a 2-His-1-carboxylate facial triad in a pocket of each subunit constitute the active sites, accessible from the inside of the sphere. The iron is likely the site of both sulfur oxidation and sulfur reduction.


    Related Citations: 
    • The Sulfur Oxygenase Reductase from Acidianus Ambivalens is an Icosatetramer as Shown by Crystallization and Patterson Analysis
      Urich, T.,Coelho, R.,Kletzin, A.,Frazao, C.
      (2005) Biochim.Biophys.Acta 1747: 267
    • Coupled Enzymatic Production of Sulfite, Thiosulfate, and Hydrogen Sulfide from Sulfur: Purification and Properties of a Sulfur Oxygenase Reductase from the Facultatively Anaerobic Archaebacterium Desulfurolobus Ambivalens
      Kletzin, A.
      (1989) J.Bacteriol. 171: 1638
    • Molecular Characterization of the Sor Gene, which Encodes the Sulfur Oxygenase-Reductase of the Thermoacidophilic Archaeum Desulfurolobus Ambivalens
      Kletzin, A.
      (1992) J.Bacteriol. 174: 5854


    Organizational Affiliation

    Darmstadt University of Technology, Institute of Microbiology and Genetics, Schnittspahnstrasse 10, 64287 Darmstadt, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SULFUR OXYGENASE REDUCTASE
A, B, C, D, E, F
318Acidianus ambivalensMutation(s): 0 
Gene Names: sor
EC: 1.13.11.55
Find proteins for P29082 (Acidianus ambivalens)
Go to UniProtKB:  P29082
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FE
Query on FE

Download SDF File 
Download CCD File 
A, B, C, D, E, F
FE (III) ION
Fe
VTLYFUHAOXGGBS-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CSS
Query on CSS
A, B, C, D, E, F
L-PEPTIDE LINKINGC3 H7 N O2 S2CYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.183 
  • Space Group: I 4
Unit Cell:
Length (Å)Angle (°)
a = 162.150α = 90.00
b = 162.150β = 90.00
c = 154.930γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
SHELXDphasing
ARP/wARPphasing
SOLVEphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-02-24
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-06-28
    Type: Refinement description