Ready-to-use ELISA kits are available for the detection of Angiotensin 1-7, an alias of the protein, angiotensinogen. The official gene symbol is AGT. The protein, with a mass of 53.2 kDa and length of 485 residues, is reported to be secreted. It is a member of the Serpin family and may be known by other names, including: serpin A8, serine (or cysteine) proteinase inhibitor, fetal-liver predominant transporter 1, angiotensin II, angiotensin I, and alpha-1 antiproteinase antitrypsin, and ANHU.