Anti-PAGE family member 4 antibodies are used for the immunodetection of the protein encoded by the PAGE4 gene. In humans, the canonical protein has a reported length of 102 amino acid residues and a mass of 11.2 kDa. Its subcellular localization is in the nucleus, mitochondria, and cytoplasm. It is noted to be expressed at basal lvels in the adult normal prostate gland but is highly up-regulated in the fetal prostate and prostate cancer cells. A member of the GAGE protein family, it is known to be involved with the regulation of apoptosis and the response to oxidative stress. Post-translational modifications have been described, including phosphorylation. Other names for this target antigen include GAGE-9, GAGEC1, JM-27, JM27, PAGE-1, and CT16.7. Gene orthologs have been identified in the mouse, bovine and chimpanzee species. Some PAGE family member 4 antibodies may have been used in research and have associated citations. Immunohistochemistry is a widely used application for these antibodies. Western Blot and Immunofluorescence are also common applications.