Anti-FATE1 antibodies are used in the immunodetection of the protein fetal and adult testis expressed 1. In humans, the canonical protein has a reported length of 183 amino acid residues and a mass of 20.7 kDa. Its subcellular localization is in the mitochondria and ER. It is notably expressed in the testis. FATE1 is reported to be involved in regulation of endoplasmic reticulum (ER)-mitochondria coupling. Synonyms for this target antigen include BJ-HCC-2 antigen, cancer/testis antigen 43, tumor antigen BJ-HCC-2, and fetal and adult testis-expressed transcript protein. FATE1 gene orthologs have been reported in the bovine and chimpanzee species. A number of FATE1 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. Immunofluorescence and Immunohistochemistry are also common applications.