Ready-to-use ELISA kits are available for the detection of CD273, an alias of the protein, programmed cell death 1 ligand 2. The official gene symbol is PDCD1LG2. The kits can detect several species variants of the protein, including: human. The protein, with a mass of 31 kDa and length of 273 residues, is reported to be membrane-associated and secreted. It is a member of the Immunoglobulin superfamily, BTN/MOG family and may be known by other names, including: B7DC, programmed death ligand 2, PDCD1 ligand 2, PD-1-ligand 2, B7-DC, and B7 dendritic cell molecule, and CD273.