Anti-PSBG2 antibodies enable researchers to detect and measure the PSBG2 antigen in biological samples. This target is a reported synonym of the PSG2 gene, which encodes pregnancy specific beta-1-glycoprotein 2. This protein is known to function in cell migration, among other biological roles. The human version of PSBG2 has a canonical amino acid length of 335 residues and a protein mass of 37.2 kilodaltons. It is reported to be a secreted protein. Other names for this target antigen include CEA and CEA.