Anti-SPANXN3 antibodies are used in the immunodetection of the protein SPANX family member N3. In humans, the canonical protein has a reported length of 141 amino acid residues and a mass of 15.6 kDa. It is a member of the SPAN-X protein family. Synonyms for this target antigen include cancer/testis antigen family 11, member 8, nuclear-associated protein SPAN-Xn3, and sperm protein associated with the nucleus on the X chromosome N3. These SPANXN3 antibodies are widely used in Western Blot experiments, among other applications.