Clarification of the role of key active site residues of glutathione transferase Zeta/maleylacetoacetate isomerase by a new spectrophotometric technique
hGSTZ1-1 (human glutathione transferase Zeta 1-1) catalyses a range of glutathione-dependent reactions and plays an important role in the metabolism of tyrosine via its maleylacetoacetate isomerase activity. The crystal structure and sequence alignment of hGSTZ1 with other GSTs (glutathione transferases) focused attention on three highly conserved residues (Ser-14, Ser-15, Cys-16) as candidates for an important role in catalysis. Progress in the investigation of these residues has been limited...[Show more]
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