IFIT1 Interferon-induced antiviral RNA-binding protein that specifically binds single-stranded RNA bearing a 5'-triphosphate group (PPP-RNA), thereby acting as a sensor of viral single-stranded RNAs and inhibiting expression of viral messenger RNAs. Single-stranded PPP-RNAs, which lack 2'-O-methylation of the 5' cap and bear a 5'-triphosphate group instead, are specific from viruses, providing a molecular signature to distinguish between self and non-self mRNAs by the host during viral infection. Directly binds PPP-RNA in a non-sequence-specific manner. Viruses evolved several ways to evade this restriction system such as encoding their own 2'-O-methylase for their mRNAs or by stealing host cap containing the 2'-O-methylation (cap snatching mechanism). Exhibits antiviral activity against several viruses including human papilloma and hepatitis C viruses. Belongs to the IFIT family. 2 alternatively spliced human isoforms have been reported. Note: This description may include information from UniProtKB.
Protein type: RNA-binding
Chromosomal Location of Human Ortholog: 10q23.31
Cellular Component:  cytoplasm; cytosol; host cell
Molecular Function:  protein binding; RNA binding
Biological Process:  cellular response to exogenous dsRNA; cellular response to type I interferon; intracellular transport of viral protein in host cell; negative regulation of helicase activity; negative regulation of protein binding; negative regulation of viral genome replication; positive regulation of viral genome replication; regulation of defense response to virus; response to virus; type I interferon signaling pathway; viral process
Reference #:  P09914 (UniProtKB)
Alt. Names/Synonyms: C56; G10P1; GARG-16; IFI-56; IFI-56K; IFI56; IFIT-1; IFIT1; IFNAI1; interferon induced protein with tetratricopeptide repeats 1; Interferon, alpha-inducible protein (MW 56kD); Interferon-induced 56 kDa protein; interferon-induced protein 56; Interferon-induced protein with tetratricopeptide repeats 1; interferon-inducible mRNA 561; ISG56; P56; RNM561
Gene Symbols: IFIT1
Molecular weight: 55,360 Da
Basal Isoelectric point: 6.75  Predict pI for various phosphorylation states
Protein-Specific Antibodies, siRNAs or Recombinant Proteins from Cell Signaling Technology® Total Proteins
Select Structure to View Below


Protein Structure Not Found.

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