2LV3

Structure-functional characterization of Grx domain of Mus musculus TGR


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 20 
  • Selection Criteria: all calculated structures submitted 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural analysis of glutaredoxin domain of Mus musculus thioredoxin glutathione reductase

Dobrovolska, O.Shumilina, E.Gladyshev, V.N.Dikiy, A.

(2012) Plos One 7: e52914-e52914

  • DOI: 10.1371/journal.pone.0052914

  • PubMed Abstract: 
  • Thioredoxin glutathione reductase (TGR) is a member of the mammalian thioredoxin reductase family that has a monothiol glutaredoxin (Grx) domain attached to the thioredoxin reductase module. Here, we report a structure of the Grx domain of mouse TGR, ...

    Thioredoxin glutathione reductase (TGR) is a member of the mammalian thioredoxin reductase family that has a monothiol glutaredoxin (Grx) domain attached to the thioredoxin reductase module. Here, we report a structure of the Grx domain of mouse TGR, determined through high resolution NMR spectroscopy to the final backbone RMSD value of 0.48 ± 0.10 Å. The structure represents a sandwich-like molecule composed of a four stranded β-sheet flanked by five α-helixes, with the CxxS active motif located on the catalytic loop. We structurally characterized the glutathione-binding site in the protein and describe sequence and structural relationships of the domain with glutaredoxins. The structure illuminates a key functional center that evolved in mammalian TGRs to act in thiol-disulfide reactions. Our study allows us to hypothesize that Cys105 might be functionally relevant for TGR catalysis. In addition, the data suggest that the N-terminus of Grx acts as a possible regulatory signal also protecting the protein active site from unwanted interactions in cellular cytosol.


    Organizational Affiliation

    Department of Biotechnology, Norwegian University of Science and Technology, Trondheim, Norway.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Thioredoxin reductase 3
A
118Mus musculusGene Names: Txnrd3 (Tgr, Trxr3)
EC: 1.8.1.9
Find proteins for Q99MD6 (Mus musculus)
Go to UniProtKB:  Q99MD6
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 20 
  • Selection Criteria: all calculated structures submitted 
  • Olderado: 2LV3 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-05-22
    Type: Initial release
  • Version 1.1: 2016-04-27
    Type: Structure summary