NPAT

Transcription regulator required for progression through the G1 and S phases of the cell cycle and for S phase entry. Acts as a key transcription regulator of histones. Activates transcription of the histone H2A, histone H2B, histone H3 and histone H4 genes in conjunction with GON4L and MIZF. Together with CRAMP1, binds to the promoters of H1 genes (H1-2, H1-3, H1-4, H1-5 and H1-10/H1x), driving their transcription. Also positively regulates the ATM, MIZF and PRKDC promoters. Transcriptional activation may be accomplished at least in part by the recruitment of the NuA4 histone acetyltransferase (HAT) complex to target gene promoters..

Function from UniProtKB (Q14207), read 2026-09-23. CC BY 4.0.