Anti-ZPO1 antibodies enable researchers to detect and measure the ZPO1 antigen in biological samples. This target is a reported synonym of the ZNF703 gene, which encodes zinc finger protein 703. This protein is known to function in mammary gland epithelial cell differentiation and the regulation of transcription, among other biological roles. The human version of ZPO1 has a canonical amino acid length of 590 residues and a protein mass of 58.2 kilodaltons. It is reported to be localized in the nucleus and cytoplasm of cells and widely expressed in many tissue types. ZPO1 is a member of the Elbow/Noc protein family.