Recombinant Human Interferon-stimulated gene 20 kDa protein(ISG20)

Code CSB-YP846587HU
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Source Yeast
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Code CSB-EP846587HU
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Source E.coli
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Code CSB-EP846587HU-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-BP846587HU
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Source Baculovirus
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Code CSB-MP846587HU
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Source Mammalian cell
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Product Details

Purity >85% (SDS-PAGE)
Target Names ISG20
Uniprot No. Q96AZ6
Alternative Names CD25; Estrogen regulated transcript 45 protein; Estrogen-regulated transcript 45 protein; HEM45; Interferon stimulated exonuclease gene 20kDa; Interferon stimulated gene 20 kDa protein; Interferon-stimulated gene 20 kDa protein; Isg20; ISG20_HUMAN; Promyelocytic leukemia nuclear body associated protein; Promyelocytic leukemia nuclear body-associated protein ISG20
Species Homo sapiens (Human)
Expression Region 1-181
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 exoribonuclease that acts on single-stranded RNA and also has minor activity towards single-stranded DNA. Exhibits antiviral activity against RNA viruses including hepatitis C virus (HCV), hepatitis A virus (HAV) and yellow fever virus (YFV) in an exonuclease-dependent manner. May also play additional roles in the maturation of snRNAs and rRNAs, and in ribosome biogenesis.
Gene References into Functions
  1. we have identified a novel mechanism involving ISG20 induction by T3 via the IL-8/p-JAK2/p-STAT3 signaling pathway to promote tumor angiogenesis in HCC. PMID: 29195126
  2. In conclusion, the authors identified that the influenza A virus-upregulated Long noncoding RNA lnc-ISG20 is a novel interferon-stimulated gene that elicits its inhibitory effect on influenza A virus replication by enhancing ISG20 expression. They demonstrated that lnc-ISG20 functions as a competitive endogenous RNA to bind miR-326 to reduce its inhibition of ISG20 translation. PMID: 29899085
  3. Interferon-stimulated gene of 20 kDa protein (ISG20) acts as an innate anti-HBV effector that selectively degrades hepatitis B virus (HBV) RNA and blocks replication of infectious HBV particles. PMID: 27626689
  4. Variation at rs12913965 may affect the risk for shoulder dislocation by affecting the activity of either TICRR or ISG20. PMID: 28521375
  5. We discovered two genome-wide significant SNPs. The first was novel and near ISG20. The second was in TRIOBP, a gene previously associated with prelingual nonsyndromic hearing loss. Motivated by our TRIOBP results, we also looked at exons in known hearing loss genes, and identified two additional SNPs, rs2877561 in ILDR1 and rs9493672 in EYA4 (at a significance threshold adjusted for number of SNPs in those regions). PMID: 27764096
  6. these data provide a detailed explanation for the specific antiviral action of ISG20 and suggest that ISG20 may act as a promising antiviral drug candidate against IAV. PMID: 27342813
  7. The results suggest that hantavirus infection interferes with DAXX-mediated apoptosis, and expression of interferon-activated Sp100 and ISG-20 proteins may indicate intracellular intrinsic antiviral attempts. PMID: 23830076
  8. ISG20 inhibited infections by hepatitis C virus, bovine viral diarrhea virus and hepatitis A virus. Moreover, ISG20 demonstrated cell-type specific antiviral activity against yellow fever virus, a classical flavivirus. PMID: 21036379
  9. ISG20has distinctive residues, Met14 and Arg53, to accommodate hydrogen bonds with the 2'-OH group of the UMP ribose, and these residues may be responsible for the preference of ISG20 for RNA substrates PMID: 15527770
  10. ISG20 has a role in reducing the synthesis of HBV proteins PMID: 18278447

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Subcellular Location Nucleus. Nucleus, nucleolus. Cytoplasm. Nucleus, Cajal body.
Protein Families Exonuclease superfamily
Tissue Specificity Highly expressed in peripheral blood leukocytes, spleen, thymus, colon and lung. Up regulated by E2 in estrogen receptor-positive breast cancer lines.
Database Links

HGNC: 6130

OMIM: 604533

KEGG: hsa:3669

STRING: 9606.ENSP00000306565

UniGene: Hs.459265


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