Ready-to-use ELISA kits are available for the detection of oxyntomodulin, an alias of the protein, glucagon. The official gene symbol is GCG. The kits can detect several species variants of the protein, including: human, mouse, rat, chicken, primate, and other mammalian. The protein, with a mass of 20.9 kDa and length of 180 residues, is reported to be secreted. It is a member of the Glucagon family and may be known by other names, including: GRPP, GLP2, preproglucagon, glucagon-like peptide 2, glucagon-like peptide 1, and glicentin-related polypeptide.