Anti-FASTK antibodies are used in the immunodetection of the protein Fas activated serine/threonine kinase. In humans, the canonical protein has a reported length of 549 amino acid residues and a mass of 61.1 kDa. Its subcellular localization is in the mitochondria. It is found to be expressed in the heart, brain, placenta, lung, liver, skeletal muscle, kidney and pancreas. A member of the FAST protein kinase protein family, FASTK is known to be involved with the apoptotic pathway and protein phosphorylation. Post-translational modifications have been described, including phosphorylation. Synonyms for this target antigen include fas-activated serine/threonine kinase, FAST kinase, and FAST. FASTK gene orthologs have been reported in the mouse, rat, bovine, zebrafish, chimpanzee and chicken species. Some FASTK antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.