Human Gamma-Glutamylcyclotransferase (GGCT) Protein

Background

Gamma Glutamyl Cyclotransferase (GGCT) is an enzyme that plays a crucial role in glutathione metabolism by catalyzing the conversion of gamma-glutamyl peptides to 5-oxoproline and free amino acids. GGCT is involved in maintaining cellular redox balance and regulating glutathione homeostasis, which is essential for cellular protection against oxidative stress and detoxification processes. Dysregulation of GGCT activity has been linked to various pathological conditions, including cancer, where it is often upregulated and contributes to tumor proliferation and chemoresistance. Its role in the gamma-glutamyl cycle also makes it a potential target for therapeutic interventions in oxidative stress-related diseases.