Anti-GRPP antibodies enable researchers to detect and measure the GRPP antigen in biological samples. This target is a reported synonym of the GCG gene, which encodes glucagon. This protein is known to function in GPCR signaling pathways and carbohydrate metabolism and homeostasis, among other biological roles. The human version of GRPP has a canonical amino acid length of 180 residues and a protein mass of 20.9 kilodaltons. It is reported to be a secreted protein that is notably expressed in the pancreas. Other names for this target antigen include GLP-1, GLP1, and GLP2. Some GRPP antibodies may have been used in research and have associated citations. These antibodies are most commonly used in ELISA experiments, among other applications.