Anti-CIR1 antibodies are used in the immunodetection of the protein corepressor interacting with RBPJ, CIR1. In humans, the canonical protein has a reported length of 450 amino acid residues and a mass of 52.3 kDa. Its subcellular localization is in the nucleus and cytoplasm. Up to 2 different isoforms have been reported for this protein. It is reported to be highly expressed in the heart, brain, placenta, liver, skeletal muscle and pancreas. CIR1 is believed to modulate splice site selection during alternative splicing of pre-mRNAs (By similarity). Synonyms for this target antigen include corepressor interacting with RBPJ 1, CBF1 (RBPJ) interacting corepressor 1, CBF1-interacting corepressor, corepressor interacting with RBPJ, 1, recepin, and CIR. CIR1 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some CIR1 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. In addition, ELISA is also a common application.