The ELISA kits listed below target A2M, the symbol for the human gene, alpha-2-macroglobulin, and a member of the Protease inhibitor I39 (alpha-2-macroglobulin) family. The protein encoded by A2M has a predicted amino acid length of 1474, a mass of 163.3 kDa, and a secreted subcellular localization. Glycosylation has been reported. A2M may also be known by the following names: S863-7, CPAMD5, A2MD, alpha-2-M, and C3 and PZP-like alpha-2-macroglobulin domain-containing protein 5. Orthologs of the gene, including human, mouse, rat, bovine, chicken, primate, guinea pig, plant, and other mammalian are available targets of several ELISA kits.