Anti-SPATA33 antibodies are used in the immunodetection of the protein spermatogenesis associated 33. In humans, the canonical protein has a reported length of 139 amino acid residues and a mass of 15.5 kDa. Its subcellular localization is in the nucleus, mitochondria, and cytoplasm. Up to 2 different isoforms have been reported for this protein. It is notably expressed in many tissues, such as the bronchus and fallopian tube. SPATA33 is known to play an important role in sperm motility and male fertility (By similarity). Synonyms for this target antigen include spermatogenesis-associated protein 33. SPATA33 gene orthologs have been reported in the mouse, rat, bovine and chimpanzee species. These SPATA33 antibodies are widely used in Western Blot experiments, among other applications.