Anti-TSPAN33 antibodies are used in the immunodetection of the protein tetraspanin 33. In humans, the canonical protein has a reported length of 283 amino acid residues and a mass of 31.5 kDa. Its subcellular localization is in the cell membrane and cytoplasm. It is reported to be highly expressed in the erythroblasts. A member of the Tetraspanin (TM4SF) protein family, TSPAN33 is known to play an important role in normal erythropoiesis (By similarity). Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include penumbra and proerythroblast new membrane. TSPAN33 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish and chimpanzee species. A number of TSPAN33 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA, Flow Cytometry, and Immunohistochemistry are also common applications.