4USS

Populus trichocarpa glutathione transferase X1-1 (GHR1), complexed with glutathione

• PDB DOI: https://doi.org/10.2210/pdb4USS/pdb

• Classification: TRANSFERASE
• Organism(s): Populus trichocarpa
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2014-07-13 Released: 2014-12-03 
• Deposition Author(s): Lallement, P.A., Meux, E., Gualberto, J.M., Dumaracay, S., Favier, F., Didierjean, C., Saul, F., Haouz, A., Morel-Rouhier, M., Gelhaye, E., Rouhier, N., Hecker, A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.233 
• R-Value Work: 0.183 
• R-Value Observed: 0.186 

Literature

Glutathionyl-Hydroquinone Reductases from Poplar are Plastidial Proteins that Deglutathionylate Both Reduced and Oxidized Glutathionylated Quinones.

Lallement, P., Meux, E., Gualberto, J.M., Dumarcay, S., Favier, F., Didierjean, C., Saul, F., Haouz, A., Morel-Rouhier, M., Gelhaye, E., Rouhier, N., Hecker, A.

(2015) FEBS Lett 589: 37

• PubMed: 25455804 
• DOI: https://doi.org/10.1016/j.febslet.2014.11.021
• Primary Citation of Related Structures:  
  4USS


• PubMed Abstract: 
  

  Glutathionyl-hydroquinone reductases (GHRs) catalyze the deglutathionylation of quinones via a catalytic cysteine. The two GHR genes in the Populus trichocarpa genome, Pt-GHR1 and Pt-GHR2, are primarily expressed in reproductive organs. Both proteins are localized in plastids. More specifically, Pt-GHR2 localizes in nucleoids. At the structural level, Pt-GHR1 adopts a typical GHR fold, with a dimerization interface comparable to that of the bacterial and fungal GHR counterparts. Pt-GHR1 catalyzes the deglutathionylation of both reduced and oxidized glutathionylated quinones, but the enzyme is more catalytically efficient with the reduced forms.

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Organizational Affiliation: 

Université de Lorraine, Interactions Arbres - Microorganismes, UMR1136, F-54500 Vandœuvre-lès-Nancy, France; INRA, Interactions Arbres - Microorganismes, UMR1136, F-54280 Champenoux, France.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 37.68 kDa 
• Atom Count: 2,579 
• Modelled Residue Count: 306 
• Deposited Residue Count: 325 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GLUTATHIONYL HYDROQUINONE REDUCTASE	A	325	Populus trichocarpa	Mutation(s): 0  EC: 2.5.1.18

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GSH	B [auth A]	GLUTATHIONE C10 H17 N3 O6 S RWSXRVCMGQZWBV-WDSKDSINSA-N
PO4	C [auth A], D [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.233 
• R-Value Work: 0.183 
• R-Value Observed: 0.186 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 36.53	α = 90
b = 92.409	β = 90
c = 86.901	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
SCALEPACK	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-12-03 
Deposition Author(s): Lallement, P.A., Meux, E., Gualberto, J.M., Dumaracay, S., Favier, F., Didierjean, C., Saul, F., Haouz, A., Morel-Rouhier, M., Gelhaye, E., Rouhier, N., Hecker, A.

Revision History  

• Version 1.0: 2014-12-03
  Type: Initial release
  
• Version 1.1: 2014-12-17
  Changes: Database references
• Version 1.2: 2014-12-31
  Changes: Database references
• Version 2.0: 2019-10-23
  Changes: Atomic model, Data collection, Other
• Version 2.1: 2024-01-10
  Changes: Data collection, Database references, Derived calculations, Refinement description