The ELISA kits listed below target Vtcn1, the symbol for the human gene, V-set domain containing T cell activation inhibitor 1, and a member of the Immunoglobulin superfamily, BTN/MOG family. The protein encoded by VTCN1 has a predicted amino acid length of 282, a mass of 30.9 kDa, and a membrane subcellular localization. There are currently 4 reported isoforms, as well as sites of glycosylation. VTCN1 may also be known by the following names: B7H4, B7-H4, T cell costimulatory molecule B7x, B7 superfamily member 1, B7 homolog 4, and B7 family member H4, and B7X. Orthologs of the gene, including human, mouse, rat, bovine, chicken, primate, guinea pig, fish, plant, and other mammalian are available targets of several ELISA kits.