IFIT3 IFN-induced antiviral protein which acts as an inhibitor of cellular as well as viral processes, cell migration, proliferation, signaling, and viral replication. Enhances MAVS-mediated host antiviral responses by serving as an adapter bridging TBK1 to MAVS which leads to the activation of TBK1 and phosphorylation of IRF3 and phosphorylated IRF3 translocates into nucleus to promote antiviral gene transcription. Exihibits an antiproliferative activity via the up-regulation of cell cycle negative regulators CDKN1A/p21 and CDKN1B/p27. Normally, CDKN1B/p27 turnover is regulated by COPS5, which binds CDKN1B/p27 in the nucleus and exports it to the cytoplasm for ubiquitin-dependent degradation. IFIT3 sequesters COPS5 in the cytoplasm, thereby increasing nuclear CDKN1B/p27 protein levels. Upregulates CDKN1A/p21 by downregulating MYC, a repressor of CDKN1A/p21. Can negatively regulate the apoptotic effects of IFIT2. Belongs to the IFIT family. Expression significantly higher in peripheral blood mononuclear cells (PBMCs) and monocytes from systemic lupus erythematosus (SLE) patients than in those from healthy individuals (at protein level). Spleen, lung, leukocytes, lymph nodes, placenta, bone marrow and fetal liver. Note: This description may include information from UniProtKB.
Protein type: Unknown function
Chromosomal Location of Human Ortholog: 10q23.31
Cellular Component:  cytoplasm; cytosol; mitochondrion
Molecular Function:  identical protein binding; protein binding
Biological Process:  cellular response to interferon-alpha; negative regulation of apoptotic process; negative regulation of cell proliferation; response to virus; type I interferon signaling pathway
Reference #:  O14879 (UniProtKB)
Alt. Names/Synonyms: CIG-49; cig41; CIG49; GARG-49; IFI-60K; IFI60; IFIT-3; IFIT-4; IFIT3; IFIT4; interferon induced protein with tetratricopeptide repeats 3; Interferon-induced 60 kDa protein; Interferon-induced protein with tetratricopeptide repeats 3; Interferon-induced protein with tetratricopeptide repeats 4; IRG2; ISG-60; ISG60; P60; Retinoic acid-induced gene G protein; RIG-G
Gene Symbols: IFIT3
Molecular weight: 55,985 Da
Basal Isoelectric point: 5.12  Predict pI for various phosphorylation states
Protein-Specific Antibodies, siRNAs or Recombinant Proteins from Cell Signaling Technology® Total Proteins
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Protein Structure Not Found.

Cross-references to other databases:  AlphaFold  |  STRING  |  cBioPortal  |  Wikipedia  |  Reactome  |  neXtProt  |  Protein Atlas  |  BioGPS  |  Pfam  |  RCSB PDB  |  Phospho.ELM  |  NetworKIN  |  GeneCards  |  UniProtKB  |  Entrez-Gene  |  GenPept  |  Ensembl Gene  |  Ensembl Protein