Anti-GCTG antibodies enable researchers to detect and measure the GCTG antigen in biological samples. This target is a reported synonym of the GGCT gene, which encodes gamma-glutamylcyclotransferase. This protein is known to catalyze the formation of 5-oxoproline from gamma-glutamyl dipeptides and may play a significant role in glutathione homeostasis. The human version of GCTG has a canonical amino acid length of 188 residues and a protein mass of 21 kilodaltons, although 4 isoforms have been identified. It is reported to be widely expressed in many tissue types. GCTG is a member of the Gamma-glutamylcyclotransferase protein family. Indicated applications for GCTG antibodies listed below include ELISA, Western Blot, and Immunohistochemistry.