Anti-HIRIP antibodies enable researchers to detect and measure the HIRIP antigen in biological samples. This target is a reported synonym of the NFU1 gene, which encodes NFU1 iron-sulfur cluster scaffold. The human version of HIRIP has a canonical amino acid length of 254 residues and a protein mass of 28.5 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the mitochondria and cytoplasm of cells. Other names for this target antigen include CGI-33 and HIRIP5.