This gene encodes a protein containing tetratricopeptide repeats that was originally identified as induced upon treatment with interferon. The encoded protein may inhibit viral replication and translational initiation. This gene is located in a cluster on chromosome 10 with five other closely related genes. There is a pseudogene for this gene on chromosome 13. Alternatively spliced transcript variants encoding multiple isoforms have been observed.,IFIT1,C56,G10P1,IFI-56,IFI-56K,IFI56,IFIT-1,IFNAI1,ISG56,P56,RNM561,Immunology & Inflammation,Cytokines,Interferons,Cell Intrinsic Innate Immunity Signaling Pathway,IFIT1