Recombinant Human IFNA1 (IFN-alpha1) Protein

Name: Recombinant Human IFNA1 (IFN-alpha1) Protein
Brand: Beta LifeScience
SKU: BL-1611SG
Availability: InStock

Collections: All products, Buy cytokines, chemokines, and growth factors for research online, Buy interferon online, High-quality recombinant proteins

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Product Overview

Tag	N/A
Host Species	Human
Accession	P01562
Synonym	Interferon alpha-D, IFN-alpha-1/13, LeIF D, IFNA13
Background	All known subtypes of IFN- alpha show the same antiviral antiparasitic, antiproliferative activities. IFN-alpha forms are produced by monocytes/macrophages, lymphoblastoid cells, fibroblasts, and a number of different cell types following induction by viruses, nucleic acids, glucocorticoid hormones, and low-molecular weight substances. All IFN-alpha subtypes possess a common conserved sequence region between amino acid positions 115-151 while the amino-terminal ends are variable. Many IFN-alpha subtypes differ in their sequences at only one or two positions. IFN-alpha and IFN-beta are thought to bind to the same receptor. Signal transduction mechanisms elicited after binding of IFN-alpha to its receptors involves tyrosine phosphorylation of various non-receptor tyrosine kinases belonging to the Janus kinases.
Description	Recombinant Human IFNA1 (IFN-alpha1) was produced in E. coli. This protein is purified with our unique purification methods.
Source	E.coli
Molecular Weight	19.7 kDa
Purity	For specific purity information on a given lot, see related COA.
Endotoxin	< 1.0 EU per μg of the protein as determined by the LAL method
Formulation	Recombinant protein is supplied in 50mM Tris-HCl, pH 7.5, 50mM NaCl, 10mM Glutathione, 0.25mM DTT, 0.1mM EDTA, 0.1mM PMSF and 25% glycerol.
Stability	The recombinant protein is stable for up to 12 months at -70°C
Usage	For Research Use Only
Storage	Recombinant Human IFNA1 (IFN-alpha1) Protein should be stored should be stored at < -70°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.

Target Details

Target Function	Produced by macrophages, IFN-alpha have antiviral activities. Interferon stimulates the production of two enzymes: a protein kinase and an oligoadenylate synthetase.
Subcellular Location	Secreted.
Protein Families	Alpha/beta interferon family
Database References	HGNC: 5417 OMIM: 147578 KEGG: hsa:3439 STRING: 9606.ENSP00000276927 UniGene: PMID: 28496097 Significant associations were observed for 4 variants in IFNAR2, IFNLR1 with hepatitis B virus infection, and IFNLR1-rs4649203 was associated with hepatitis B recovery. Moreover, the authors demonstrated the clear relevance of 5 polymorphisms in IFNA1, IFNA2, IFNL4 with hepatocellular carcinoma. PMID: 29080269 HIV-1 IIIB infection of myeloid ThP-1 cells also reduced the IFN-alpha-mediated induction of the anti-viral gene, ISG15, but not MxA, revealing a functional consequence of this HIV-1-mediated immune evasion strategy. PMID: 29580840 Therefore, these results demonstrate the importance of MxB in alpha interferon-mediated inhibition of HIV-1 infection. PMID: 29925663 Our results illustrate a novel regulatory role of TWEAK, in which its activity positively regulates type I IFN pathway in lupus nephritis (LN) based on preclinical models. Our findings suggest TWEAK could act as a critical target in preventing renal damage in patients with LN. PMID: 29333443 Myeloid cells contribute more to the whole blood interferon signature in systemic lupus erythematosus than their lymphocytic counterpart. Very similar leukocyte subsets reveal distinctive IFN signatures. IFN alpha mixes up composition of blood and leads to a preferential neutropenia, yielding relative lymphocytosis. PMID: 28357476 the polymorphic variant of IFNA1 (-2) gene is associated with chronic HBV infection PMID: 27101083 Cerebrospinal fluid interferon alpha levels correlate with neurocognitive impairment in ambulatory HIV-Infected individuals. PMID: 27400930 Data suggest a central role of XBP1 in TLR7-induced IFNalpha production and identify XBP1 as a potential novel therapeutic target in IFNalpha-driven autoimmune and inflammatory diseases. PMID: 28408069 Study shows IFN-alpha rapidly induces a profound shift in whole brain network structure, impairing global functional connectivity and the efficiency of parallel information exchange. PMID: 26697999 The review focuses on the value of the type I and III interferon subtypes (alphas, beta and lambdas) as therapeutics for prevention and treatment of viral infections (influenza, herpes, human immunodeficiency virus and hepatitis viruses). PMID: 27544015 MiR-181a is an important mediator for interferons-induced SAMHD1 expression in astrocytes and microglia, but not for inhibition of HIV-1 infection induced by IFN-alpha. PMID: 27219130 the expression of certain TAM components was reduced as a result of prolonged degradation of MYD88 by Porphyromonas gingivalis infection. PMID: 28076786 Type I interferons (IFNs) signature is seen in a significant proportion of anti-nuclear antibody-positive (ANA(+) individuals and appears to be associated with ANA titre and type of autoantibodies, rather than with the presence or development of clinical systemic autoimmune rheumatic diseases (SARDs) symptoms. PMID: 28245862 study found that endogenous IFNalpha autocrinally promotes the expression of Interferon-Stimulated Gene (ISG) mRNAs in IL-3-, but not in IFNlambda3 plus IL-3-, treated plasmacytoid dendritic cells (pDCs); production of IFNalpha by IFNlambda3 plus IL-3-treated pDCs is mostly dependent on endogenously produced TNFalpha PMID: 27513213 results demonstrate that Sphingosine 1-phosphate lyase (SPL) is a host factor that augments type I IFN responses during influenza A virus infection; study delineates the relationship between IKKepsilon and SPL, which provides a mechanistic understanding of the pro-IFN activity of SPL PMID: 28600291 These data suggest that plasmacytoid dendritic cells producing IFN-alpha and IL-33 play a pivotal role in the chronic fibro-inflammatory responses underlying murine autoimmune pancreatitis and human IgG4-related autoimmune pancreatitis. PMID: 28373582 These findings also identify STAT3 as a therapeutic target against viral infection and highlight it as an essential pathway component for endogenous and therapeutic IFN-alpha responsiveness. PMID: 27988795 Mothers of children affected by autoimmune congenital heart block had a significantly higher expression IFN-alpha. PMID: 28501799 Suppression of the exogenous Type I IFN-induced Jak/STAT signaling by NSs might be one of the mechanisms of Severe fever with thrombocytopenia syndrome (SFTS) to evade host immune surveillance. PMID: 28234991 the paper shows the data on the role of interferons -alpha and -beta in infections - not only commonly known viral infections, but also bacterial, fungal and parasitic. PMID: 28388697 High Type I Interferon expression due to hypomethylation is associated with Systemic Lupus Erythematosus. PMID: 28085900 these studies identify phosphorylation of S734-STAT2 as a new regulatory mechanism that negatively controls the type I IFN-antiviral response. PMID: 27802159 The synthetic IFNP molecule exerted its antitumor activity by upregulating the downstream genes involved in the STAT1 pathway and in apoptosis. Using a cell receptor binding assay, we showed that this Jurkat-binding peptide facilitated the binding affinity of IFNalpha to the cell surface type I IFN receptor PMID: 28578326 KSHV-encoded viral IRF4 interacts with the host IRF7 and inhibits interferon-alpha production. PMID: 28342865 Data indicate ARID3a(+) B cells as a type of effector B cell, and link ARID3a expression in B lymphocytes to interferon alpha (IFNa)-associated inflammatory responses in systemic lupus erythematosus (SLE). PMID: 27522115 On one hand, hepatitis B virus activates MMP-9 in infected patients and leukocytes. On the other hand, MMP-9 facilitates hepatitis B virus replication through repressing IFN/JAK/STAT signaling, IFNAR1 function, and IFN-alpha action. PMID: 28122987 Interferon-alpha Induces the apoptosis of Hela cells by activating both the intrinsic mitochondrial pathway and endoplasmic reticulum stress-induced pathway. PMID: 27827850 Decreased interferon alpha (IFN-alpha) secretion induced by Toll-like receptor 7 and Toll-like receptor 8 (TLR7/TLR8) activation was observed in common variable immunodeficiency (CVID), which was recovered with Toll-like receptor 9 (TLR9) signaling. PMID: 27392462 Plasmacytoid dendritic cells (pDCs) and type 1 interferon (FNalpha/beta)frequently accompanied plasmablast/plasma cells (PB/PCs). PMID: 27102764 These results establish that activation of STAT pathway is essential for anti-hepatitis c virus efficacy of IFN-alpha. PMID: 27855377 IL-2 therapy should be used as a first- or second-line therapy following IFN-a therapy. IL-2 may have a lower response if it is used after molecular-targeted therapy or other treatments PMID: 27630356 results show that IFNA1 rs1332190 and IFNA17 rs9298814 SNPs may play an important role in Crimean-Congo hemorrhagic fever susceptibility PMID: 26694082 Interferon-alpha-induced TRIM22 interrupts hepatitis c virus replication by ubiquitinating NS5A. PMID: 25683609 our data indicate that by targeting PTP1B, miR-744 plays a feed-forward role in regulating type I IFN signaling pathway. PMID: 26259828 the findings demonstrate that treatment with anti-CD20-hIFNalpha reverses resistance of B-NHL PMID: 26398317 NS of severe fever with thrombocytopenia syndrome virus inhibited the activity of IFN-alpha1, IFN-beta, IFN-lambda1 and IFN-lambda2 through inhibition of STAT1 phosphorylation. PMID: 26353965 interferon (IFN)-alpha, weakens activation of the anti-bacterial interleukin (IL)-1/IL-22 axis in human peripheral blood mononuclear cells exposed to viable B. burgdorferi PMID: 26152778 Shp-2 contributes to the control of respiratory syncytial virus replication and progeny production in pulmonary alveolar epithelial cells by interfering with IFN-alpha-induced Jak/Stat1 pathway activation PMID: 26119280 Interferon alfa induces high response rates with low toxicity in patients with polycythemia vera. PMID: 26261238 This study suggests that suppression of miR-122 induced by hepatitis B virus infection, leads to the inactivation of interferon expression, which in turn enhances hepatitis B virus replication. PMID: 25766860 Data suggest that Viral microRNA hcmv-miR-UL112 subverts innate immunity by downregulating type I interferons IFN-alpha and IFN-beta signaling to inhibit natural killer (NK) cell cytotoxicity. PMID: 25530545 Interferon-alpha and interferon-beta are at the crossroads of allergy and viral infections. (Review) PMID: 26026068 The interaction between AIP and IRF7 is enhanced upon virus infection, and AIP potently inhibits IRF7-induced type I IFN (IFN-alpha/beta) production. PMID: 25911105 Interferon-alpha inhibits CD4 T cell responses to interleukin-7 and interleukin-2 and selectively interferes with Akt signaling. PMID: 25784743 Data show that chemokine CXCL13 production by monocytes required toll-like receptor 7 activation and secretion of interferon-alpha. PMID: 25667414 Studies indicate that type I interfereon signaling cascade is initiated by the binding of the cytokines to the high-affinity interferon alpha receotor. PMID: 25747907 Results show that histone-lysine N-methyltransferase Set7 facilitates hepatitis C virus (HCV) replication through the attenuation of interferon-alpha (IFN-alpha) signaling pathways and IFN-related effectors. PMID: 25681344 Domain 2 of the hepatitis C virus core protein critically affected the magnitude of host IFN-alpha responses. PMID: 25552725 Hepatitis C virus NS3-4A similarly diminished both human and mouse MAVS-dependent signaling in human and mouse cells and MAVS induces both type I and type III interferons, which together control the hepatitis C virus replication. PMID: 25609814

FAQs

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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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Recombinant Human IFNA1 (IFN-alpha1) Protein

Recombinant Human IFNA1 (IFN-alpha1) Protein

Product Overview

Target Details

FAQs