Ready-to-use ELISA kits are available for the detection of Obestatin, an alias of the protein, ghrelin and obestatin prepropeptide. The official gene symbol is GHRL. The kits can detect several species variants of the protein, including: human, mouse, rat, bovine, chicken, primate, guinea pig, and other mammalian. The protein, with a mass of 12.9 kDa and length of 117 residues, is reported to be secreted. It is a member of the Motilin family and may be known by other names, including: motilin-related peptide, growth hormone-releasing peptide, ghrelin/obestatin preprohormone, In2c-preproghrelin, and appetite-regulating hormone, and preproghrelin.