IFI6

Interferon-stimulated protein that plays an important role in innate immune response against a wide variety of viruses. Inhibits flavivirus replication by preventing the formation of virus-induced endoplasmic reticulum membrane invaginations, which are double-membrane vesicles that flaviviruses use for their replication. Has an antiviral activity towards hepatitis C virus/HCV by inhibiting the EGFR signaling pathway, whose activation is required for entry of the virus into cells. Within the nucleus, restricts hepatitis B virus/HBV promoter activity leading to substantial reduction of viral replication and gene expression. Plays a role in apoptosis, negatively regulating the intrinsinc apoptotic signaling pathway and TNFSF10-induced apoptosis. However, it has also been shown to have a pro-apoptotic activity. Modulates innate immune response mediated by RIGI by preventing its activation..

Function from UniProtKB (P09912), read 2026-09-23. CC BY 4.0.