Recombinant Human Interferon-induced protein with tetratricopeptide repeats 1(IFIT1)

Code CSB-YP011018HU
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Source Yeast
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Code CSB-EP011018HU
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Source E.coli
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Code CSB-EP011018HU-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP011018HU
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Source Baculovirus
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Code CSB-MP011018HU
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Source Mammalian cell
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Product Details

Purity >85% (SDS-PAGE)
Target Names IFIT1
Uniprot No. P09914
Alternative Names C56; G10P1; GARG 16; GARG16; IFI 56; IFI 56K ; IFI-56K; IFI56; IFIT-1; Ifit1; IFIT1_HUMAN; IFNAI1; Interferon alpha inducible protein (MW 56kD); Interferon induced 56 kDa protein; Interferon induced protein 56; Interferon inducible mRNA 561; Interferon-induced 56 kDa protein; Interferon-induced protein with tetratricopeptide repeats 1; ISG56; OTTHUMP00000020062; P56; RNM561
Species Homo sapiens (Human)
Expression Region 1-478
Protein Length Full length protein
Tag Info The following tags are available.
N-terminal His-tagged
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization Tris/PBS-based buffer, 6% Trehalose, pH 8.0
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
and FAQs
Protein FAQs
Storage Condition Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet Please contact us to get it.

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Target Background

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.
Gene References into Functions
  1. Induction of IFIT1 in response to H9N2 virus infection or viral particle inoculation was more sensitive in HUVECs than in BEAS-2Bs. Data offers new insight into the innate immune response of endothelial cells to H9N2 virus infection. PMID: 29629559
  2. Human IFIT1 and mouse IFIT1B have divergent antiviral specificities: only IFIT1 proteins inhibit a virus encoding a cap 2'O-methyltransferase. PMID: 27240734
  3. Taken together, this study revealed that IFIT1 played an important antiviral role in human cytomegalovirus infected fetal astrocytes. PMID: 27589693
  4. Glioblastoma patients with high IFIT1 and low MGMT expression have an improved prognosis. PMID: 26980050
  5. IFIT1 significantly inhibited human parainfluenza virus type 3, whereas IFIT2, IFIT3, and IFIT5 were less effective or not at all. PMID: 27707917
  6. All the rubulaviruses tested were sensitive to the antiviral action of ISG56/IFIT1. PMID: 27512068
  7. IFIT1 is involved in the regulation of IFNalpha treatment for chronic hepatitis B and its polymorphism rs303218 can predict the end point virological response. PMID: 27956805
  8. IFIT1 is not a dominant restriction factor against three different families of negative-sense RNA viruses. PMID: 26157117
  9. Reovirus T3D infection induced STAT-1, ISG-15, IFIT-1, Mx1, and IFIT-3 expression. PMID: 25905045
  10. protein expression is inhibited by hepatitis C virus PMID: 23529855
  11. The specificity of IFIT1 for 2'O-unmethylated RNA serves as potent antiviral mechanism against viruses lacking 2'O-methyltransferase activity and at the same time allows unperturbed progression of the antiviral program in infected cells. PMID: 24098121
  12. TLR4 signaling, induced by LPS, increases the expression of melanoma differentiation-associated gene 5 (MDA5) and interferon PMID: 23684765
  13. ISG56 may play a role in immune and inflammatory reactions induced by toll-like receptor 3 signaling in human mesangial cells. PMID: 23363937
  14. Results indicate that miR-203 is an interferon-inducible miRNA that can negatively regulate a number of cellular mRNAs, including an interferon-stimulated gene target, IFIT1/ISG56, by destabilizing its mRNA transcript. PMID: 23785202
  15. Data suggested that PIV5 mRNAs are methylated at the 2'-hydroxyl group and that ISG56/IFIT1 inhibits the translation of PIV5 mRNA by some unrecognized mechanism. Also ISG56/IFIT1 is primarily responsible for the IFN-induced inhibition of PIV5. PMID: 23052390
  16. crystal structures of human IFIT5, its complex with PPP-RNAs, and an amino-terminal fragment of IFIT1 PMID: 23334420
  17. Hepatitis C virus infection suppresses the upregulation of a subset of effector molecules, including ISG56 and IFITM1. PMID: 21976647
  18. ISG56 interacts with ribosomal protein L15 in gastric cancer cells. PMID: 21612406
  19. Expression of ifi56 is enhanced significantly when the differentiation of APL cells was induced by all-trans retinoic acid. PMID: 21129252
  20. IFIT1 bound PPP-RNA antagonizes viruses by sequestering specific viral nucleic acids. PMID: 21642987
  21. The authors present evidence that P56 (ISG56 protein), the expression of which is strongly induced by IFN, double-stranded RNA and viruses, mediates the anti-HPV effect of IFN. PMID: 19008854
  22. ISG56 is a mediator of negative-feedback regulation of virus-triggered induction of type I IFNs and cellular antiviral responses PMID: 19416887

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Subcellular Location Cytoplasm.
Protein Families IFIT family
Database Links

HGNC: 5407

OMIM: 147690

KEGG: hsa:3434

STRING: 9606.ENSP00000360869

UniGene: Hs.20315

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