Maleylacetoacetate isomerase (GSTZ1)

Bifunctional enzyme showing minimal glutathione- conjugating activity with ethacrynic acid and 7-chloro-4- nitrobenz-2-oxa-1,3-diazole and maleylacetoacetate isomerase activity. Has also low glutathione peroxidase activity with T- butyl and cumene hydroperoxides.

Can catalyze the glutathione dependent oxygenation of dichloroacetic acid to glyoxylic acid. .