Ready-to-use ELISA kits are available for the detection of T-cell immunoreceptor with Ig and ITIM domains, an alias of the protein, T cell immunoreceptor with Ig and ITIM domains. The official gene symbol is TIGIT. The kits can detect several species variants of the protein, including: human, mouse, and bovine. The protein, with a mass of 26.3 kDa and length of 244 residues, is reported to be membrane-associated. It may be known by other names, including: VSIG9, Washington University cell adhesion molecule, V-set and transmembrane domain-containing protein 3, V-set and transmembrane domain containing 3, and V-set and immunoglobulin domain containing 9, and WUCAM.