Purity: > 95% by SDS - PAGE Format: Liquid. In Phosphate Buffered Saline pH7.4 containing 10% glycerol. GSTZ1, also known as maleylacetoacetate isomerase, is an enzyme that belongs to glutathione S-transferase (GSTs) super-family. This enzyme acts by catalyzing the reaction of glutathione with an acceptor molecule to form an S-substituted glutathione (S=sulfur). The reactions utilizing glutathione contribute the transformation of a wide variety of electrophiles, including reactive products of lipid, protein, carcinogens, therapeutic drugs, environmental toxins, and products of oxidative stress. It also plays a significant role in the catabolism of phenylalanine and tyrosine. Recombinant GSTZ1 protein was expressed in E.coli and purified by using conventional chromatography techniques.