Anti-STPG2 antibodies are used in the immunodetection of the protein sperm tail PG-rich repeat containing 2. In humans, the canonical protein has a reported length of 459 amino acid residues and a mass of 50.7 kDa. Synonyms for this target antigen include sperm-tail PG-rich repeat-containing protein 2. STPG2 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish and chimpanzee species. ELISA is the most common application for the STPG2 antibodies listed below. Western Blot and Immunohistochemistry are also common applications.