Anti-nucleolar pre-rRNA processing protein NIP7 antibodies are used for the immunodetection of the protein encoded by the NIP7 gene. In humans, the canonical protein has a reported length of 180 amino acid residues and a mass of 20.5 kDa. Its subcellular localization is in the nucleus. Alternative splicing is reported to yield 2 different isoforms for this protein. It is reported to be expressed in hematopoietic stem/progenitor cells. A member of the NIP7 protein family, it is known to be required for proper 34S pre-rRNA processing and 60S ribosome subunit assembly. Other names for this target antigen include HSPC031, KD93, 60S ribosome subunit biogenesis protein NIP7 homolog, NIP7, nucleolar pre-rRNA processing protein, nuclear import 7 homolog, and CGI-37. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.