Anti-P antigen family, member 3 (prostate associated) antibodies enable researchers to detect and measure the P antigen family, member 3 (prostate associated) antigen in biological samples. This target is a reported synonym of the PAGE3 gene, which encodes PAGE family member 3. The human version of P antigen family, member 3 (prostate associated) has a canonical amino acid length of 113 residues and a protein mass of 12.5 kilodaltons. Other names for this target antigen include P antigen family member 3, G antigen family D member 1, and G antigen, family D, 1.