2YAX

IODOACETAMIDE INHIBITED SULFUR OXYGENASE REDUCTASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.169 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Substrate Pathways and Mechanisms of Inhibition in the Sulfur Oxygenase Reductase of Acidianus Ambivalens.

Veith, A.Urich, T.Seyfarth, K.Protze, J.Frazao, C.Kletzin, A.

(2011) Front.Microbiol. 2: 37

  • DOI: 10.3389/fmicb.2011.00037
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The sulfur oxygenase reductase (SOR) is the initial enzyme of the sulfur oxidation pathway in the thermoacidophilic Archaeon Acidianus ambivalens. The SOR catalyzes an oxygen-dependent sulfur disproportionation to H(2)S, sulfite and thiosulfate. The ...

    The sulfur oxygenase reductase (SOR) is the initial enzyme of the sulfur oxidation pathway in the thermoacidophilic Archaeon Acidianus ambivalens. The SOR catalyzes an oxygen-dependent sulfur disproportionation to H(2)S, sulfite and thiosulfate. The spherical, hollow, cytoplasmic enzyme is composed of 24 identical subunits with an active site pocket each comprising a mononuclear non-heme iron site and a cysteine persulfide. Substrate access and product exit occur via apolar chimney-like protrusions at the fourfold symmetry axes, via narrow polar pores at the threefold symmetry axes and via narrow apolar pores within in each subunit. In order to investigate the function of the pores we performed site-directed mutagenesis and inhibitor studies.


    Related Citations: 
    • X-Ray Structure of a Self-Compartmentalizing Sulfur Cycle Metalloenzyme.
      Urich, T.,Gomes, C.M.,Kletzin, A.,Frazao, C.
      (2006) Science 311: 996


    Organizational Affiliation

    Institute of Microbiology and Genetics, Technische Universit├Ąt Darmstadt Darmstadt, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SULFUR OXYGENASE/REDUCTASE
A, D, E
318Acidianus ambivalensMutation(s): 0 
Gene Names: sor
EC: 1.13.11.55
Find proteins for P29082 (Acidianus ambivalens)
Go to UniProtKB:  P29082
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
SULFUR OXYGENASE/REDUCTASE
B, C, 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  2 Unique
IDChainsTypeFormula2D DiagramParent
YCM
Query on YCM
B, C, F
L-PEPTIDE LINKINGC5 H10 N2 O3 SCYS
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: 1.8 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.169 
  • Space Group: I 4
Unit Cell:
Length (Å)Angle (°)
a = 161.897α = 90.00
b = 161.897β = 90.00
c = 154.273γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
REFMACphasing
SCALEPACKdata scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-12-21
    Type: Initial release
  • Version 1.1: 2019-05-08
    Type: Data collection, Derived calculations, Experimental preparation, Other