3GX0

Crystal Structure of GSH-dependent Disulfide bond Oxidoreductase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.194 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Analysis of the structure and function of YfcG from Escherichia coli reveals an efficient and unique disulfide bond reductase.

Wadington, M.C.Ladner, J.E.Stourman, N.V.Harp, J.M.Armstrong, R.N.

(2009) Biochemistry 48: 6559-6561

  • DOI: 10.1021/bi9008825
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • YfcG is one of eight glutathione (GSH) transferase homologues encoded in the Escherichia coli genome. The protein exhibits low or no GSH transferase activity toward a panel of electrophilic substrates. In contrast, it has a very robust disulfide-bond ...

    YfcG is one of eight glutathione (GSH) transferase homologues encoded in the Escherichia coli genome. The protein exhibits low or no GSH transferase activity toward a panel of electrophilic substrates. In contrast, it has a very robust disulfide-bond reductase activity toward 2-hydroxyethyldisulfide on par with mammalian and bacterial glutaredoxins. The structure of YfcG at 2.3 A-resolution from crystals grown in the presence of GSH reveals a molecule of glutathione disulfide in the active site. The crystallographic results and the lack of functional cysteine residues in the active site of YfcG suggests that the reductase activity is unique in that no sulfhydryl groups in the YfcG protein are covalently involved in the redox chemistry.


    Organizational Affiliation

    Department of Biochemistry, Vanderbilt University, Nashville, Tennessee 37232-0146, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GST-like protein yfcG
A
215Escherichia coli K-12Mutation(s): 0 
Gene Names: yfcGb2302JW2299
EC: 1.8.4 (UniProt), 1.11.1 (UniProt)
Find proteins for P77526 (Escherichia coli (strain K12))
Go to UniProtKB:  P77526
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GDS
Query on GDS

Download CCD File 
A
OXIDIZED GLUTATHIONE DISULFIDE
C20 H32 N6 O12 S2
YPZRWBKMTBYPTK-BJDJZHNGSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
GDSKd:  2400   nM  Binding MOAD
GDSKd:  330000   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.194 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68.49α = 90
b = 68.49β = 90
c = 111.99γ = 90
Software Package:
Software NamePurpose
SAINTdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
SAINTdata reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-07-07
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance