ISDA: 4USS

Deposition Date 2014-07-13

Release Date 2014-12-03

Last Version Date 2024-01-10

Entry Detail

PDB ID:

4USS

Keywords:

TRANSFERASE

Title:

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

Biological Source:

Source Organism:

POPULUS TRICHOCARPA (Taxon ID: 3694)

Host Organism:

ESCHERICHIA COLI

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.50 Å

R-Value Free:

0.23

R-Value Work:

0.18

R-Value Observed:

0.18

Space Group:

P 21 21 2

Download Validation Report

Macromolecular Entities

Polymer Type:polypeptide(L)
Molecule:GLUTATHIONYL HYDROQUINONE REDUCTASE
Chain IDs:A
Chain Length:325
Number of Molecules:1
Biological Source:POPULUS TRICHOCARPA

Ligand Molecules

GSH

PO4

Primary Citation

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.Show

FEBS Lett. 589 37 ? (2015)

PMID: 25455804 DOI: 10.1016/J.FEBSLET.2014.11.021

Abstact

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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