Glutathione: pharmacological aspects and implications for clinical use Geriatric Care Crystal structures of glutamyltranspeptidase from Escherichia coli, a key enzyme in glutathione metabolism, and its reaction intermediate PNAS 8 But none of this explains WHY GGT is elevated at all 1GGT is maintaining glutathione stores 2If glutathione is, GGT goes 3No GGT? glutathione Q: What depletes glutathione? A: oxidative stress Enzymes part 4 Creatine Kinase, Gamma GT, Lactate Dehydrogenase, and Lipase Glutathione metabolism. In the presence of an amino acid glutathione is Download Scientific Diagram GGT (gamma glutamyltransferase): Diagnostic Significance and Clinical Insights Advanced Health Academy