Anti-PTMA antibodies are used in the immunodetection of the protein prothymosin alpha. In humans, the canonical protein has a reported length of 111 amino acid residues and a mass of 12.2 kDa. Its subcellular localization is in the nucleus. Up to 2 different isoforms have been reported for this protein. It is notably widely expressed in many tissue types. A member of the Pro/parathymosin protein family, PTMA is known to be involved with the regulation of apoptosis and the regulation of transcription. Synonyms for this target antigen include gene sequence 28, prothymosin alpha protein, prothymosin-I+/-, and TMSA. PTMA gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of PTMA antibodies have been mentioned in research publications and have associated citations. ELISA is a widely used application for these antibodies. Western Blot and Immunohistochemistry are also common applications.