Cell Signaling Technology

Product Pathways - NF-kB Signaling

IFIT1 Antibody #12082

Applications Reactivity Sensitivity MW (kDa) Source
W IP H Endogenous 56 Rabbit

Applications Key:  W=Western Blotting  IP=Immunoprecipitation
Reactivity Key:  H=Human
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Protocols

Specificity / Sensitivity

IFIT1 Antibody recognizes endogenous levels of total IFIT1 protein.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ala194 of human IFIT1 protein. Antibodies are purified by protein A and peptide affinity chromatography.

Western Blotting

Western Blotting

Western blot analysis of extracts from HeLa cells, untreated (-) or treated with Human Interferon-α1 (hIFN-α1) #8927 (10 ng/ml, 16 hr; +), using IFIT1 Antibody (upper) and β-Actin (D6A8) Rabbit mAb #8457 (lower).

Background

IFIT1 (interferon-induced protein with tetratricopeptide repeats 1) belongs to the IFIT family of proteins, which consists of four members in humans (IFIT1, IFIT2, IFIT3, and IFIT5) and three members in mice (IFIT1, IFIT2, and IFIT3) (1). IFIT1 expression is induced by Type I Interferons resulting from viral infection (2). IFIT1 is an antiviral protein that directly binds viral RNA that has a 5’ triphosphate group (PPP-RNA) (2). In humans, the viral PPP-RNA bound IFIT1 forms a complex with IFIT2 and IFIT3 to sequester the viral PPP-RNA and prevent replication (2). IFIT1 has also been shown to inhibit translation by binding to the eukaryotic initiation factor-3 (eIF-3) (3).

  1. Ablasser, A. and Hornung, V. (2011) Nat Immunol 12, 588-90.
  2. Pichlmair, A. et al. (2011) Nat Immunol 12, 624-30.
  3. Guo, J. et al. (2000) EMBO J 19, 6891-9.

Application References

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Companion Products


For Research Use Only. Not For Use In Diagnostic Procedures.

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