Anti-GTG antibodies enable researchers to detect and measure the GTG antigen in biological samples. This target is a reported synonym of the GGT1 gene, which encodes gamma-glutamyltransferase 1. This protein is known to function in fatty acid metabolism, among other biological roles. The human version of GTG has a canonical amino acid length of 569 residues and a protein mass of 61.4 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the cell membrane of cells and notably expressed in the urinary bladder, stomach, kidney, and epididymis. Other names for this target antigen include CD224, CD224, and D22S672. Western Blot is the most common application for the GTG antibodies listed below. ELISA and Immunohistochemistry are also common applications.