The IFI16 protein prefers supercoiled and cruciform DNA structures, regulates transcription, and may act as a repressor protein, affecting hematopoietic differentiation and controlling cell proliferation. It regulates key cell cycle factors such as p53/TP53 and participates in the energy-dependent ATM/AMPK/TP53 pathway to regulate autophagy. IFI16 Protein, Human (FLAG) is the recombinant human-derived IFI16 protein, expressed by E. coli , with C-Flag labeled tag.