1FOV

GLUTAREDOXIN 3 FROM ESCHERICHIA COLI IN THE FULLY OXIDIZED FORM


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

NMR structure of oxidized glutaredoxin 3 from Escherichia coli.

Nordstrand, K.Sandstrom, A.Aslund, F.Holmgren, A.Otting, G.Berndt, K.D.

(2000) J.Mol.Biol. 303: 423-432

  • DOI: 10.1006/jmbi.2000.4145

  • PubMed Abstract: 
  • A high precision NMR structure of oxidized glutaredoxin 3 [C65Y] from Escherichia coli has been determined. The conformation of the active site including the disulphide bridge is highly similar to those in glutaredoxins from pig liver and T4 phage. A ...

    A high precision NMR structure of oxidized glutaredoxin 3 [C65Y] from Escherichia coli has been determined. The conformation of the active site including the disulphide bridge is highly similar to those in glutaredoxins from pig liver and T4 phage. A comparison with the previously determined structure of glutaredoxin 3 [C14S, C65Y] in a complex with glutathione reveals conformational changes between the free and substrate-bound form which includes the sidechain of the conserved, active site tyrosine residue. In the oxidized form this tyrosine is solvent exposed, while it adopts a less exposed conformation, stabilized by hydrogen bonds, in the mixed disulfide with glutathione. The structures further suggest that the formation of a covalent linkage between glutathione and glutaredoxin 3 is necessary in order to induce these structural changes upon binding of the glutathione peptide. This could explain the observed low affinity of glutaredoxins for S-blocked glutathione analogues, in spite of the fact that glutaredoxins are highly specific reductants of glutathione mixed disulfides.


    Related Citations: 
    • NMR structure of Escherichia coli Glutaredoxin 3 - glutathione mixed disulfide complex: Implications for the enzymatic mechanism
      Nordstrand, K.,Aslund, F.,Holmgren, A.,Otting, G.,Berndt, K.D.
      (1999) J.Mol.Biol. 286: 541


    Organizational Affiliation

    Center for Structural Biochemistry Karolinska Institutet, Huddinge, S-141 57, Sweden.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GLUTAREDOXIN 3
A
82Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: grxC (yibM)
Find proteins for P0AC62 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AC62
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 
  • Olderado: 1FOV Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-10-26
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance