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Human IFNA4 Gene ORF cDNA clone expression plasmid, C-Flag tag

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    Human IFNA4 cDNA Clone Product Information
    NCBI RefSeq:NM_021068.2
    RefSeq ORF Size:570bp
    cDNA Description:Full length Clone DNA of Homo sapiens interferon, alpha 4 with Flag tag.
    Gene Synonym:INFA4, MGC142200
    Species:Human
    Vector:pCMV2-FLAG
    Plasmid:pCMV2-IFNA4-flag
    Restriction Site:KpnI + XhoI (5.4kb + 0.62kb)
    Tag Sequence:FLAG Tag Sequence: GATTACAAGGATGACGACGATAAG
    Sequence Description:Identical with the Gene Bank Ref. ID sequence.
    Sequencing primers:T7(TAATACGACTCACTATAGGG) BGH(TAGAAGGCACAGTCGAGG)
    ( We provide with IFNA4 qPCR primers for gene expression analysis, HP100376 )
    Promoter:Enhanced CMV mammalian cell promoter
    Application:Stable or Transient mammalian expression
    Antibiotic in E.coli:Kanamycin
    Antibiotic in mammalian cell:Hygromycin
    Shipping_carrier:Each tube contains lyophilized plasmid.
    Storage:The lyophilized plasmid can be stored at room temperature for three months.
    pCMV2-FLAG Vector Information
     
    Vector Name pCMV2-FLAG
    Vector Size 5592bp
    Vector Type Mammalian Expression Vector
    Expression Method Constiutive, Stable / Transient
    Promoter CMV
    Antibiotic Resistance Kanamycin
    Selection In Mammalian Cells Hygromycin
    Protein Tag FLAG
    Sequencing Primer Forward:T7(TAATACGACTCACTATAGGG)
    Reverse:BGH(TAGAAGGCACAGTCGAGG)

    Schematic of pCMV2-FLAG Multiple Cloning Sites

    FLAG Tag Info

    FLAG-tag, or FLAG octapeptide, is a polypeptide protein tag that can be added to a protein using recombinant DNA technology. It can be used for affinity chromatography, then used to separate recombinant, overexpressed protein from wild-type protein expressed by the host organism. It can also be used in the isolation of protein complexes with multiple subunits.

    A FLAG-tag can be used in many different assays that require recognition by an antibody. If there is no antibody against the studied protein, adding a FLAG-tag to this protein allows one to follow the protein with an antibody against the FLAG sequence. Examples are cellular localization studies by immunofluorescence or detection by SDS PAGE protein electrophoresis.

    The peptide sequence of the FLAG-tag from the N-terminus to the C-terminus is: DYKDDDDK (1012 Da). It can be used in conjunction with other affinity tags, for example a polyhistidine tag (His-tag), HA-tag or myc-tag. It can be fused to the C-terminus or the N-terminus of a protein. Some commercially available antibodies (e.g., M1/4E11) recognize the epitope only when it is present at the N-terminus. However, other available antibodies (e.g., M2) are position-insensitive.

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    Background

    Interferon, alpha 4 (IFNA4) belongs to the alpha/beta interferon family. Two variants of IFNA4 (IFNA4a and IFNA4b) are known, which differ from each other by changes in their coding regions at nucleotide positions 220 and 410 and can be distinguished by selective restriction enzyme analysis. Interferons are produced by macrophages, IFN-alpha have antiviral activities. Interferon stimulates the production of two enzymes: a protein kinase and an oligoadenylate synthetase. IFN-alpha, the first cytokine to be produced by recombinant DNA technology, has emerged as an important regulator of growth and differentiation, affecting cellular communication and signal transduction pathways as well as immunological control. Originally discovered as an antiviral substance, the efficacy of IFN-alpha in malignant, viral, immunological, angiogenic, inflammatory, and fibrotic diseases suggests a spectrum of interrelated pathophysiologies. IFN-alpha emerged as a prototypic tumor suppressor protein that represses the clinical tumorigenic phenotype in some malignancies capable of differentiation.

    References
  • Lau JY, et al. (1993) Discrepancy between biochemical and virological responses to interferon-alpha in chronic hepatitis C. Lancet. 342(8881): 1208-9.
  • Kessler DS, et al. (1990) Interferon-alpha regulates nuclear translocation and DNA-binding affinity of ISGF3, a multimeric transcriptional activator. Genes Dev. 4(10): 1753-65.
  • Gutterman JU. Cytokine therapeutics: lessons from interferon alpha. Proc Natl Acad Sci U S A. 91(4): 1198-205.
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    Catalog: HG10336-M-F
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    Datasheet & Documentation

    All information of our products is subject to change without notice. Please refer to COA enclosed in shipped package for the newest information.
    Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"