Type 1 glutamine amidotransferase (GATase1) domain found in gamma-Glutamyl Hydrolase
Type 1 glutamine amidotransferase (GATase1) domain found in gamma-Glutamyl Hydrolase. gamma-Glutamyl Hydrolase catalyzes the cleavage of the gamma-glutamyl chain of folylpoly-gamma-glutamyl substrates and is a central enzyme in folyl and antifolyl poly-gamma-glutamate metabolism. GATase activity involves the removal of the ammonia group from a glutamate molecule and its subsequent transfer to a specific substrate, thus creating a new carbon-nitrogen group on the substrate. gamma-Glutamyl hydrolases belong to the triad family of amidotransferases having a conserved Cys-His-Glu catalytic triad in the glutaminase active site.