Anti-NPAT antibodies are used in the immunodetection of the protein nuclear protein, coactivator of histone transcription. In humans, the canonical protein has a reported length of 1427 amino acid residues and a mass of 154.3 kDa. Its subcellular localization is in the nucleus. It is ubiquitously expressed across many tissue types. A member of the NPAT protein family, NPAT is known to be required for progression through the G1 and S phases of the cell cycle and for S phase entry. Post-translational modifications have been described, including phosphorylation. Synonyms for this target antigen include E14/NPAT, p220, protein NPAT, nuclear protein of the ATM locus, nuclear protein of the ataxia telangiectasia mutated locus, and E14. NPAT gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of NPAT antibodies have been mentioned in research publications and have associated citations. These antibodies are most commonly used in Western Blot experiments, among other applications.