Anti-PAP21 antibodies enable researchers to detect and measure the PAP21 antigen in biological samples. This target is a reported synonym of the PRADC1 gene, which encodes protease associated domain containing 1. This protein is reported to play a role in the modulation of physical activity and adiposity. The human version of PAP21 has a canonical amino acid length of 188 residues and a protein mass of 21 kilodaltons. It is reported to be a secreted protein that is notably expressed in many tissues, such as the appendix, stomach, and adrenal gland. Indicated applications for PAP21 antibodies listed below include ELISA and Western Blot.