Ready-to-use ELISA kits are available for the detection of Vaspin, an alias of the protein, serpin family A member 12. The official gene symbol is SERPINA12. The kits can detect several species variants of the protein, including: human, mouse, rat, bovine, chicken, primate, guinea pig, fish, and other mammalian. The protein, with a mass of 47.2 kDa and length of 414 residues, is reported to be secreted. It is a member of the Serpin family and may be known by other names, including: OL-64, visceral adipose-specific SERPIN, vaspin, serpin peptidase inhibitor clade A (alpha-1 antiproteinase antitrypsin) member 12, and serpin A12.