Anti-EFHD1 antibodies are used in the immunodetection of the protein EF-hand domain family member D1. In humans, the canonical protein has a reported length of 239 amino acid residues and a mass of 26.9 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 breast and kidney. EFHD1 is known to act as a calcium sensor for mitochondrial flash (mitoflash) activation, an event characterized by stochastic bursts of superoxide production. Synonyms for this target antigen include EF-hand domain-containing protein 1, swiprosin-2, and EF-hand domain-containing protein D1. EFHD1 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some EFHD1 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunofluorescence are also common applications.