Anti-OOEP antibodies are used in the immunodetection of the protein oocyte expressed protein. In humans, the canonical protein has a reported length of 149 amino acid residues and a mass of 17.2 kDa. Its subcellular localization is in the nucleus and cytoplasm. It is notably expressed in the ovary. It is a member of the KHDC1 protein family. Synonyms for this target antigen include KH homology domain containing 2, KH homology domain-containing protein 2, oocyte and embryo protein 19, oocyte expressed protein homolog (dog), and oocyte-expressed protein homolog. OOEP gene orthologs have been reported in the mouse, rat and chimpanzee species. Immunohistochemistry is a widely used application for the Ooep antibodies listed below. In addition, Immunocytochemistry is also a common application.