Anti-AQR antibodies are used in the immunodetection of the protein aquarius intron-binding spliceosomal factor. In humans, the canonical protein has a reported length of 1485 amino acid residues and a mass of 171.3 kDa. Its subcellular localization is in the nucleus. A member of the CWF11 protein family, AQR is known to be involved in pre-mRNA splicing as component of the spliceosome. Synonyms for this target antigen include fSAP164, RNA helicase aquarius, aquarius homolog, functional spliceosome-associated protein 164, intron-binding protein aquarius, and IBP160. AQR gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of AQR antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. In addition, Immunohistochemistry is also a common application.