2E7P

Crystal structure of the holo form of glutaredoxin C1 from populus tremula x tremuloides

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.186 

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Literature

Functional, structural, and spectroscopic characterization of a glutathione-ligated [2Fe-2S] cluster in poplar glutaredoxin C1

Rouhier, N., Unno, H., Bandyopadhyay, S., Masip, L., Kim, S.K., Hirasawa, M., Gualberto, J.M., Lattard, V., Kusunoki, M., Knaff, D.B., Georgiou, G., Hase, T., Johnson, M.K., Jacquot, J.P.

(2007) Proc Natl Acad Sci U S A 104: 7379-7384

  • DOI: 10.1073/pnas.0702268104
  • Primary Citation of Related Structures:  
    2E7P

  • PubMed Abstract: 

    • When expressed in Escherichia coli, cytosolic poplar glutaredoxin C1 (CGYC active site) exists as a dimeric iron-sulfur-containing holoprotein or as a monomeric apoprotein in solution. Analytical and spectroscopic studies of wild-type protein and site-directed variants and structural characterization of the holoprotein by using x-ray crystallography indicate that the holoprotein contains a subunit-bridging [2Fe-2S] cluster that is ligated by the catalytic cysteines of two glutaredoxins and the cysteines of two glutathiones ...

    When expressed in Escherichia coli, cytosolic poplar glutaredoxin C1 (CGYC active site) exists as a dimeric iron-sulfur-containing holoprotein or as a monomeric apoprotein in solution. Analytical and spectroscopic studies of wild-type protein and site-directed variants and structural characterization of the holoprotein by using x-ray crystallography indicate that the holoprotein contains a subunit-bridging [2Fe-2S] cluster that is ligated by the catalytic cysteines of two glutaredoxins and the cysteines of two glutathiones. Mutagenesis data on a variety of poplar glutaredoxins suggest that the incorporation of an iron-sulfur cluster could be a general feature of plant glutaredoxins possessing a glycine adjacent to the catalytic cysteine. In light of these results, the possible involvement of plant glutaredoxins in oxidative stress sensing or iron-sulfur biosynthesis is discussed with respect to their intracellular localization.

    Organizational Affiliation: 

    Unité Mixte de Recherche 1136, Institut National de la Recherche Agronomique, Institut Fédératif de Recherche 110, Genomics, Ecology, Nancy University, BP 239, 54506 Vandoeuvre-lès-Nancy Cedex, France. nrouhier@scbiol.uhp-nancy.fr



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
GlutaredoxinA, B, C, D116Populus tremula x Populus tremuloidesMutation(s): 0 
Gene Names: grxC1
UniProt
Find proteins for Q5PSJ1 (Populus tremula x Populus tremuloides)
Explore Q5PSJ1 
Go to UniProtKB:  Q5PSJ1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5PSJ1
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GSH
Query on GSH
Download Ideal Coordinates CCD File 
F [auth A],
G [auth B],
H [auth C],
I [auth D]		GLUTATHIONE
C10 H17 N3 O6 S
RWSXRVCMGQZWBV-WDSKDSINSA-N		 Ligand Interaction
FES
Query on FES
Download Ideal Coordinates CCD File 
E [auth A]FE2/S2 (INORGANIC) CLUSTER
Fe2 S2
NIXDOXVAJZFRNF-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.186 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 97.774α = 90
b = 97.774β = 90
c = 91.51γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling
SHARPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-09-25
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.2: 2011-12-07
    Changes: Non-polymer description