Anti-TAF1C antibodies are used in the immunodetection of the protein TATA-box binding protein associated factor, RNA polymerase I subunit C. In humans, the canonical protein has a reported length of 869 amino acid residues and a mass of 95.2 kDa. Its subcellular localization is in the nucleus. Up to 5 different isoforms have been reported for this protein. TAF1C is a known component of the transcription factor SL1/TIF-IB complex, which is involved in the assembly of the PIC (preinitiation complex) during RNA polymerase I-dependent transcription. Synonyms for this target antigen include SL1, TAFI110, TAFI95, RNA polymerase I-specific TBP-associated factor 110 kDa, and MGC:39976. TAF1C gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.