Anti-selenoprotein F antibodies are used in the immunodetection of the protein encoded by the SELENOF gene. In humans, the canonical protein has a reported length of 165 amino acid residues and a mass of 18.1 kDa. Its subcellular localization is in the ER. Alternative splicing is reported to yield 2 different isoforms for this protein. It is notably expressed in prostate and thyroid gland. A member of the Selenoprotein M/F protein family, it is suspected to be involved in redox reactions associated with the formation of disulfide bonds (By similarity). Other names for this target antigen include 15 kDa selenoprotein.