Protein Domain : Glutathione S-transferases, class Zeta IPR005955

Type  Family
Description  GSTs are cytosolic dimeric proteins involved in cellular detoxification by catalyzing the conjugation of glutathione (GSH) with a wide range of endogenous and xenobiotic alkylating agents, including carcinogens, therapeutic drugs, environmental toxins, and products of oxidative stress. The GST fold contains an N-terminal thioredoxin-fold domain and a C-terminal alpha helical domain, with an active site located in a cleft between the two domains. GSH binds to the N-terminal domain while the hydrophobic substrate occupies a pocket in the C-terminal domain [, ]. Class Zeta GSTs, also known as maleylacetoacetate (MAA) isomerases, catalyze the isomerization of MAA to fumarylacetoacetate, the penultimate step in tyrosine/phenylalanine catabolism, using GSH as a cofactor [ , ]. They show little GSH-conjugating activity towards traditional GST substrates, but display modest GSH peroxidase activity []. They are also implicated in the detoxification of the carcinogen dichloroacetic acid by catalyzing its dechlorination to glyoxylic acid [].
Short Name  GST_Zeta

0 Child Features

2 Gene Families

9 Genes

3 Ontology Annotations

1 Parent Features

4 Publications

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