4G10 image
Deposition Date 2012-07-10
Release Date 2012-10-03
Last Version Date 2025-03-26
Entry Detail
PDB ID:
4G10
Keywords:
TRANSFERASE
Title:
LigG from Sphingobium sp. SYK-6 is related to the glutathione transferase omega class
Biological Source:
Source Organism:
Sphingomonas paucimobilis (Taxon ID: 13689)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.20 Å
R-Value Free:
0.15
R-Value Work:
0.13
R-Value Observed:
0.14
Space Group:
P 41 21 2
4G10 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Glutathione S-transferase homolog
Gene (Uniprot):ligG
Chain IDs:A
Chain Length:265
Number of Molecules:1
Biological Source:Sphingomonas paucimobilis
UniProt ID:Q9WXJ9 Pfam ID:PF13417, PF16865
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
MSE A MET SELENOMETHIONINE
Ligand Molecules
ACT
GSH
SO4
Primary Citation
Sphingobium sp. SYK-6 LigG involved in lignin degradation is structurally and biochemically related to the glutathione transferase omega class.
Febs Lett. 586 3944 3950 (2012)
PMID: 23058289 DOI: 10.1016/j.febslet.2012.09.036

Abstact

SpLigG is one of the three glutathione transferases (GSTs) involved in the process of lignin breakdown in the soil bacterium Sphingobium sp. SYK-6. Sequence comparisons showed that SpLigG and several proteobacteria homologues form an independent cluster within cysteine-containing GSTs. The relationship between SpLigG and other GSTs was investigated. The X-ray structure and biochemical properties of SpLigG indicate that this enzyme belongs to the omega class of glutathione transferases. However, the hydrophilic substrate binding site of SpLigG, together with its known ability to stereoselectively deglutathionylate the physiological substrate α-glutathionyl-β-hydroxypropiovanillone, argues for broadening the definition of the omega class.

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Primary Citation of related structures
4G10