Anti-P antigen family, member 2 (prostate associated) antibodies enable researchers to detect and measure the P antigen family, member 2 (prostate associated) antigen in biological samples. This target is a reported synonym of the PAGE2 gene, which encodes PAGE family member 2. The human version of P antigen family, member 2 (prostate associated) has a canonical amino acid length of 111 residues and a protein mass of 12.1 kilodaltons. It is reported to be notably expressed in the testis. Other names for this target antigen include P antigen family member 2, G antigen family C 2, and G antigen, family E, 2.