IFN-alpha 13
IFN-alpha 13 (IFNA13; IFN-α13) is produced by the macrophages, belongs to the alpha/beta interferon (IFN) family, a family of cytokines induced by viral infection and are primarily involved in antiviral defense of the cells[1]. Interferon (IFN) is originally identified as a substance ‘interfering’ with viral replication in vitro. IFN-α/β and related molecules are classified as type I IFNs, as for the other two types of type II IFN (IFN-γ) and type III IFNs (IFN-λ), respectively[2]. Interferon stimulates the production of two enzymes: a protein kinase and an oligoadenylate synthetase. Interferon alpha (IFNa) shows significant biological activity in various cancers, paticularly haematological malignancies such as hairy cell leukaemia and chronic myelogenous leukaemia[3].
IFN-alpha13 exhibits acid-stable antiviral activity against Theiler's virus, Mengo virus, and vesicular stomatitis virus. Firstly, it is transcribed constitutively, independent of viral infection and of interferon regulatory factor-7 induction. Secondly, it contains two N-glycosylation sites, in contrast to other murine IFN-alpha subtypes that contain either one or no N-glycosylation site[4]. As for a wildly use of IFN in animal model, the sequence of amino acids in IFNA13 protein of human is very different from mouse (64.55%).
- [1]. Kumagai Y, et al. Alveolar macrophages are the primary interferon-alpha producer in pulmonary infection with RNA viruses. Immunity. 2007 Aug;27(2):240-52. [Content Brief]
- [2]. Zhang SY, et al. Inborn errors of interferon (IFN)-mediated immunity in humans: insights into the respective roles of IFN-alpha/beta, IFN-gamma, and IFN-lambda in host defense. Immunol Rev. 2008 Dec;226:29-40. [Content Brief]
- [3]. Raj NB, et al. Identification of a novel virus-responsive sequence in the promoter of murine interferon-alpha genes. J Biol Chem. 1991 Jun 15;266(17):11360-5. [Content Brief]
- [4]. van Pesch V, et al. Characterization of interferon-alpha 13, a novel constitutive murine interferon-alpha subtype. J Biol Chem. 2003 Nov 21;278(47):46321-8. [Content Brief]
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IFN-alpha 13 Recombinant Proteins (6)
- Species:
- Source:
Recombinant Protein Expression Service
- Codon Optimization
- Gene Synthesis
- Construction of Expression Vector
- Strain Screening
- Protein Expression
- Purification & QC
- Protein Delivery
- Formula: Human
- Molecular Weight: Sf9 insect cells
The EpCAM/TROP1 protein serves as an important homogeneous interacting molecule that promotes direct contact between intestinal epithelial cells (IEC) and intraepithelial lymphocytes (IEL) in the mucosal epithelium. This feature helps establish an immune barrier against mucosal infections. EpCAM/TROP1 Protein, Human (His-SUMO) is the recombinant human-derived EpCAM/TROP1 protein, expressed by E. coli , with N-6*His, N-SUMO labeled tag.
