Anti-CSTF1 antibodies are used in the immunodetection of the protein cleavage stimulation factor subunit 1. In humans, the canonical protein has a reported length of 431 amino acid residues and a mass of 48.4 kDa. Its subcellular localization is in the nucleus. It is notably widely expressed in many tissue types. CSTF1 is reported to be one of the multiple factors required for polyadenylation and 3'-end cleavage of mammalian pre-mRNAs. Synonyms for this target antigen include CstFp50, CF-1 50 kDa subunit, CSTF 50 kDa subunit, cleavage stimulation factor 50 kDa subunit, and CstF-50. CSTF1 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of CSTF1 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. In addition, ELISA is also a common application.