2OE3

Crystal Structure of Mitochondrial Thioredoxin 3 from Saccharomyces cerevisiae (oxidized form)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.198 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural and mechanistic analyses of yeast mitochondrial thioredoxin Trx3 reveal putative function of its additional cysteine residues

Bao, R.Zhang, Y.R.Zhou, C.-Z.Chen, Y.X.

(2009) Biochim.Biophys.Acta 1794: 716-721

  • DOI: 10.1016/j.bbapap.2008.12.016
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The yeast Saccharomyces cerevisiae Trx3 is a key member of the thioredoxin system to control the cellular redox homeostasis in mitochondria. We solved the crystal structures of yeast Trx3 in oxidized and reduced forms at 1.80 and 2.10 A, respectively ...

    The yeast Saccharomyces cerevisiae Trx3 is a key member of the thioredoxin system to control the cellular redox homeostasis in mitochondria. We solved the crystal structures of yeast Trx3 in oxidized and reduced forms at 1.80 and 2.10 A, respectively. Besides the active site, the additional cysteine residue Cys69 also undergoes a significant redox-correlated conformational change. Comparative structural analyses in combination with activity assays revealed that residue Cys69 could be S-nitrosylated in vitro. S-nitrosylation of Cys69 will decrease the activity of Trx3 by 20%, which is comparable to the effect of the Cys69Ser mutation. Taken together, these findings provided us some new insights into the putative function of the additional cysteine residues of Trx3.


    Organizational Affiliation

    Institute of Protein Research, Tongji University, Shanghai 200092, PR China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Thioredoxin-3
A, B
114Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: TRX3
Find proteins for P25372 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P25372
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.198 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 49.313α = 90.00
b = 60.682β = 90.00
c = 72.679γ = 90.00
Software Package:
Software NamePurpose
CrystalCleardata reduction
REFMACrefinement
CrystalCleardata collection
MOLREPphasing
CrystalCleardata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-01-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Refinement description, Version format compliance