Anti-EPO antibodies are used in the immunodetection of the protein erythropoietin. In humans, the canonical protein has a reported length of 193 amino acid residues and a mass of 21.3 kDa. It has been described to be a secreted protein. A member of the EPO/TPO protein family, EPO is known to be involved with pathways of aging and erythrocyte differentiation. Post-translational modifications have been described, including glycosylation. The EPO gene has been associated with the disease, Microvascular complications of diabetes. Synonyms for this target antigen include ECYT5, EP, MVCD2, epoetin, and DBAL. EPO gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish and chimpanzee species. Over 110 citations in the literature describe the use of EPO antibodies in research. ELISA, Western Blot, and Immunohistochemistry are common applications for these antibodies.