Anti-TEFM antibodies are used in the immunodetection of the protein transcription elongation factor, mitochondrial. In humans, the canonical protein has a reported length of 360 amino acid residues and a mass of 41.7 kDa. Its subcellular localization is in the mitochondria. Up to 2 different isoforms have been reported for this protein. It is notably expressed in many tissues, such as the cerebral cortex, tonsil, and adrenal gland. It is a member of the TEFM protein family. Synonyms for this target antigen include transcription elongation factor of mitochondria. TEFM gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish and chimpanzee species. Some TEFM antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. Immunofluorescence and Immunohistochemistry are also common applications.