Recombinant Human Interferon Alpha/Beta Receptor 2 (IFNAR2) Protein (His-SUMO)

Beta LifeScience SKU/CAT #: BLC-03988P
Greater than 90% as determined by SDS-PAGE.
Greater than 90% as determined by SDS-PAGE.

Recombinant Human Interferon Alpha/Beta Receptor 2 (IFNAR2) Protein (His-SUMO)

Beta LifeScience SKU/CAT #: BLC-03988P
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Product Overview

Description Recombinant Human Interferon Alpha/Beta Receptor 2 (IFNAR2) Protein (His-SUMO) is produced by our E.coli expression system. This is a extracellular protein.
Purity Greater than 90% as determined by SDS-PAGE.
Uniprotkb P48551
Target Symbol IFNAR2
Synonyms Human interferon alpha/beta receptor; IFN alpha REC; IFN R; IFN-alpha binding protein; IFN-alpha/beta receptor 2; IFN-R-2; IFNABR ; IFNAR2; IFNARB ; IFNR; INAR2_HUMAN; Interferon (alpha beta and omega) receptor 2; Interferon alpha binding protein; Interferon alpha/beta receptor 2; Interferon alpha/beta receptor beta chain; Type I interferon receptor 2; Type I interferon receptor
Species Homo sapiens (Human)
Expression System E.coli
Tag N-6His-SUMO
Target Protein Sequence ISYDSPDYTDESCTFKISLRNFRSILSWELKNHSIVPTHYTLLYTIMSKPEDLKVVKNCANTTRSFCDLTDEWRSTHEAYVTVLEGFSGNTTLFSCSHNFWLAIDMSFEPPEFEIVGFTNHINVMVKFPSIVEEELQFDLSLVIEEQSEGIVKKHKPEIKGNMSGNFTYIIDKLIPNTNYCVSVYLEHSDEQAVIKSPLKCTLLPPGQESESAESAK
Expression Range 27-243aa
Protein Length Extracellular Domain
Mol. Weight 40.8kDa
Research Area Epigenetics And Nuclear Signaling
Form Liquid or Lyophilized powder
Buffer Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage 1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function Associates with IFNAR1 to form the plasma membrane receptor in the type I interferon signaling pathway. Directly involved in signal transduction through its association with the TYR kinase JAK1. Involved in interferon-mediated STAT1, STAT2 and STAT3 activation.; Potent inhibitor of type I IFN receptor activity.
Subcellular Location [Isoform 1]: Cell membrane; Single-pass type I membrane protein.; [Isoform 2]: Cell membrane; Single-pass type I membrane protein.; [Isoform 3]: Secreted.
Protein Families Type II cytokine receptor family
Database References

HGNC: 5433

OMIM: 602376

KEGG: hsa:3455

STRING: 9606.ENSP00000343957

UniGene: PMID: 29997210

  • Report lowered serum IFNAR2 levels in multiple sclerosis patients are elevated on treatment with interferon-beta. PMID: 27613121
  • this study shows that the surface expression levels of the common IFN-alpha/beta receptor subunit 2 are significantly higher on plasmacytoid dendritic cells from females in comparison to males PMID: 27891600
  • A very small percentage of the pancreatic tumors showed strong expression of the IFNAR-2c. PMID: 25072284
  • Lack of expression of functional IFNAR2 does not seem to be the major cause of interferon resistance in hepatitis C virus patients receiving standard interferon therapy. PMID: 26176069
  • The effects of two functional polymorphisms, type I interferon receptor 2 gene (IFNAR2)-F8S and interleukin-10 receptor subunit beta gene (IL10RB)-K47E, on chronic hepatitis B virus (HBV) infection, were investigated. PMID: 23745570
  • IFNAR2 overexpression was observed in various histological types of lung cancer, and appears to be associated with lung cancers that behave aggressively. PMID: 22236545
  • In this study we have characterized the Stat2-IFNaR2 interaction and examined its role in IFNalpha signaling PMID: 11786546
  • STAT3 activation by type I interferons is dependent on specific tyrosines located in the cytoplasmic domain of interferon receptor chain 2c PMID: 12105218
  • Expression and signaling activity of interferon alpha/beta receptors modulates dendritic cell (DC) responsiveness during terminal maturation and differentiation of monocyte-derived DCs. PMID: 12218119
  • Subunit 2 of the interferon alpha receptor (IFNaR2) is bound more avidly to Stat2 than is phosphorylated IFNaR1. PMID: 12220192
  • Administration as a complex with sIFNAR-2 may provide a method of enhancing the delivery and effectiveness of type I interferons in Burkitt lymphoma in scid mice. PMID: 14980076
  • IFNaR2, a subunit of the type I IFN receptor, is proteolytically cleaved in a regulated manner. PMID: 15286706
  • Dynamics of the IFNAR2 extracellular domain binding site reveal highly flexible loop segments and a malleable binding surface interacting with the IFN ligand supported by a more rigid scaffold which stabilizes the binding site conformation. PMID: 15287740
  • A dynamic model for the IFN-alpha/receptor complex predicts that IFNAR2 and IFNAR1 are probably anchored in close proximity on the cell surface and that upon IFN binding, the complex assumes a closed form, resulting in activation of intracellular kinases. PMID: 15449939
  • IFNaR2 intracellular domain transcriptional modulation is dependent upon the carboxyl-terminal transactivation domain of Stat2. PMID: 15717316
  • Rapid inhibition of MAPK signaling and anti-proliferation effect via JAK/STAT signaling by interferon-alpha in hepatocellular carcinoma cell lines. PMID: 16054712
  • Oveexpression of IFNAR2 is associated with hepatocellular carcinoma PMID: 16106266
  • Hepatic IFNAR2c mRNA expression appears to correlate inversely with the fibrosis stage and age in hepatitis C infection. PMID: 16518956
  • Monocyte-derived dendritic cells can modulate their sensitivity to two IFN subtypes by differential regulation of the IFNAR subunits. PMID: 16624932
  • IFNAR2 cytoplasmic domain serves to link STAT4 to the IFNAR as a pre-assembled complex that facilitates cytokine-driven STAT4 activation. PMID: 17095088
  • binding of IFN-alpha8 rather than binding of IFN-alpha2 to IFNAR-2 leads to activation and subsequent antiproliferative activity despite the same antiviral activity in renal cell carcinoma PMID: 17572016
  • The intensity and distribution of IFNAR-2 may predict the response to therapy with IFN-alpha and IFN-beta in pancreatic cancer. PMID: 17667505
  • High IFNAR2 is associated with renal cell carcinoma metastasis PMID: 17697365
  • Results demonstrated that FNAR2-extracellular domain interact differentially with two individual IFN-alphas, suggesting the mutual interaction between multiple IFN-alpha subtypes during the competition for binding to the receptor. PMID: 18027911
  • The data suggest that liberation of the IFNaR2-ICD by regulated proteolysis could trigger a novel mechanism for moving the transcription factor Stat2 to the nucleus. PMID: 18456457
  • The Stat3-activating Tyk2 V678F mutant does not up-regulate signaling through the type I interferon receptor but confers ligand hypersensitivity to a homodimeric receptor PMID: 18456658
  • Findings show that interferon-alpha/beta receptor (IFNAR)-2 isoforms are important regulators of the responsiveness to endogenous and systemically administered interferon beta (IFNbeta). PMID: 18971450
  • Results suggest that zinc, especially polaprezinc, enhances the expression of type 1 interferon 2 receptor in U937 cells, thereby inducing production of the anti-viral protein 2'-5'OAS. PMID: 19362011
  • Ep-CAM is a potentially useful marker for resistance to INFalpha/5-FU therapy, especially in IFNAR2-positive cases. PMID: 19401692
  • The IFNAR2-8SS genotype was associated with HBeAg negative patients; IFNAR2-8F allele was associated with the risk to high viral loads; the IFNAR2-8FF genotype predisposed to higher MxA gene induction and correlated with sustained IFN response. PMID: 19714778

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    Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

    Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

    Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

    Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

    To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.

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