4I8B

Crystal Structure of Thioredoxin from Schistosoma Japonicum


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.189 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Expression, characterization and crystal structure of thioredoxin from Schistosoma japonicum.

Li, Y.Li, P.Peng, Y.Wu, Q.Huang, F.Liu, X.Li, X.Zhou, H.Guo, D.Shi, D.Zhou, X.N.Fan, X.

(2015) Parasitology 142: 1044-1052

  • DOI: 10.1017/S0031182015000244
  • Primary Citation of Related Structures:  
    4I8B

  • PubMed Abstract: 
  • Schistosoma japonicum, a human blood fluke, causes a parasitic disease affecting millions of people in Asia. Thioredoxin-glutathione system of S. japonicum plays a critical role in maintaining the redox balance in parasite, which is a potential targe ...

    Schistosoma japonicum, a human blood fluke, causes a parasitic disease affecting millions of people in Asia. Thioredoxin-glutathione system of S. japonicum plays a critical role in maintaining the redox balance in parasite, which is a potential target for development of novel antischistosomal agents. Here we cloned the gene of S. japonicum thioredoxin (SjTrx), expressed and purified the recombinant SjTrx in Escherichia coli. Functional assay shows that SjTrx catalyses the dithiothreitol (DTT) reduction of insulin disulphide bonds. The coupling assay of SjTrx with its endogenous reductase, thioredoxin glutathione reductase from S. japonicum (SjTGR), supports its biological function to maintain the redox homeostasis in the cell. Furthermore, the crystal structure of SjTrx in the oxidized state was determined at 2.0 Å resolution, revealing a typical architecture of thioredoxin fold. The structural information of SjTrx provides us important clues for understanding the maintenance function of redox homeostasis in S. japonicum and pathogenesis of this chronic disease.


    Organizational Affiliation

    Key Laboratory of Organo-Pharmaceutical Chemistry,Jiangxi Province,Chemistry and Chemical Engineering College,Gannan Normal University,Ganzhou 341000,People's Republic of China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ThioredoxinAB105Schistosoma japonicumMutation(s): 0 
Gene Names: Schistosoma japonicumEWB00_003879
EC: 1.8.1.8
Find proteins for Q9U8F3 (Schistosoma japonicum)
Explore Q9U8F3 
Go to UniProtKB:  Q9U8F3
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.189 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 90.756α = 90
b = 149.364β = 90
c = 39.881γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
BALBESphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-12-04
    Type: Initial release
  • Version 1.1: 2015-05-27
    Changes: Database references
  • Version 1.2: 2015-06-03
    Changes: Database references
  • Version 1.3: 2015-06-17
    Changes: Database references