Anti-NOP protein chaperone 1 antibodies are used for the immunodetection of the protein encoded by the NOPCHAP1 gene. In humans, the canonical protein has a reported length of 185 amino acid residues and a mass of 20.1 kDa. Its subcellular localization is in the nucleus. Other names for this target antigen include DNA damage-sensitive RNA 1 and uncharacterized protein C12orf45. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.