Anti-SPP2 antibodies are used in the immunodetection of the protein secreted phosphoprotein 2. In humans, the canonical protein has a reported length of 211 amino acid residues and a mass of 24.3 kDa. It has been described to be a secreted protein. It is notably expressed in the liver and plasma. A member of the SPP2 protein family, SPP2 is known to be involved with skeletal system development. Post-translational modifications have been described, including phosphorylation. Synonyms for this target antigen include SPP24, secreted phosphoprotein 24, secreted phosphoprotein 2, 24kD, secreted phosphoprotein 2, 24kDa, and SPP-24. SPP2 gene orthologs have been reported in the mouse, rat, bovine, zebrafish, chimpanzee and chicken species. Western Blot, Immunofluorescence, and Immunohistochemistry are common applications for SPP2 antibodies.