Glutathionuria, also known as gamma-glutamyltransferase deficiency, is related to gamma-glutamylcysteine synthetase deficiency, hemolytic anemia due to and marfan syndrome. An important gene associated with Glutathionuria is GGT1 (Gamma-Glutamyltransferase 1), and among its related pathways/superpathways are Metabolism and Metapathway biotransformation Phase I and II. Affiliated tissues include lung and kidney, and related phenotypes are intellectual disability and hyperreflexia