Termus thermophilus Sulfate thiohydrolase SoxB

Experimental Data Snapshot

  • Resolution: 2.08 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.182 

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This is version 1.3 of the entry. See complete history


Mechanism for the Hydrolysis of a Sulfur-Sulfur Bond Based on the Crystal Structure of the Thiosulfohydrolase Soxb.

Sauve, V.Roversi, P.Leath, K.J.Garman, E.F.Antrobus, R.Lea, S.M.Berks, B.C.

(2009) J Biol Chem 284: 21707

  • DOI: https://doi.org/10.1074/jbc.M109.002709
  • Primary Citation of Related Structures:  
    2WDC, 2WDD, 2WDE, 2WDF

  • PubMed Abstract: 

    SoxB is an essential component of the bacterial Sox sulfur oxidation pathway. SoxB contains a di-manganese(II) site and is proposed to catalyze the release of sulfate from a protein-bound cysteine S-thiosulfonate. A direct assay for SoxB activity is described. The structure of recombinant Thermus thermophilus SoxB was determined by x-ray crystallography to a resolution of 1.5 A. Structures were also determined for SoxB in complex with the substrate analogue thiosulfate and in complex with the product sulfate. A mechanistic model for SoxB is proposed based on these structures.

  • Organizational Affiliation

    Department of Biochemistry, University of Oxford, Oxford OX1 3QU, United Kingdom.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
SULFUR OXIDATION PROTEIN SOXB562Thermus thermophilus HB27Mutation(s): 0 
Gene Names: soxBTT_C1052
Find proteins for Q72IT0 (Thermus thermophilus (strain ATCC BAA-163 / DSM 7039 / HB27))
Explore Q72IT0 
Go to UniProtKB:  Q72IT0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ72IT0
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.08 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.182 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.363α = 90
b = 86.71β = 90
c = 95.133γ = 90
Software Package:
Software NamePurpose
XPREPdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-06-16
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-07-05
    Changes: Data collection