Anti-RPP20 antibodies enable researchers to detect and measure the RPP20 antigen in biological samples. This target is a reported synonym of the POP7 gene, which encodes POP7 homolog, ribonuclease P/MRP subunit. This protein is known to function in rRNA processing, among other biological roles. The human version of RPP20 has a canonical amino acid length of 140 residues and a protein mass of 15.7 kilodaltons. It is reported to be localized in the nucleus and cytoplasm of cells. RPP20 is a member of the Histone-like Alba protein family.