Anti-RPSAP58 antibodies enable researchers to detect and measure the RPSAP58 antigen in biological samples. This target is a reported synonym of the RPSA2 gene, which encodes ribosomal protein SA 2. This protein is known to function in protein translation, among other biological roles. The human version of RPSAP58 has a canonical amino acid length of 295 residues and a protein mass of 32.9 kilodaltons. It is reported to be localized in the cell membrane, nucleus, and cytoplasm of cells. RPSAP58 is a member of the Universal ribosomal protein uS2 protein family.