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Your Position: Home > Cytokines & Growth Factors > Human IL12A /NKSF1 Protein,C-Fc Tag,HEK293 expressed

Human IL-12A / NKSF1 / p35 Protein, Fc Tag

  • Synonym
    IL12A,CLMF,IL-12A,NFSK,NKSF1,P35
  • Source
    Human IL-12A, Fc Tag (NK1-H5252) is expressed from human 293 cells (HEK293). It contains AA Arg 23 - Ser 219 (Accession # P29459).
    Predicted N-terminus: Arg 23
  • Molecular Characterization
    IL-12A(Arg 23 - Ser 219) P29459

    This protein carries a human IgG1 Fc tag at the C-terminus.

    The protein has a calculated MW of 49.2 kDa. The protein migrates as 65-80 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >92% as determined by SDS-PAGE.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, pH7.5. Normally trehalose is added as protectant before lyophilization.

    Contact us for customized product form or formulation.

  • Reconstitution

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • Storage

    For long term storage, the product should be stored at lyophilized state at -20°C or lower.

    Please avoid repeated freeze-thaw cycles.

    No activity loss is observed after storage at:

    1. 4-8°C for 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
SDS-PAGE
Human IL-12A, Fc Tag (Cat. No. NK1-H5252) SDS-PAGE gel

Human IL-12A, Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 92%.

  • Background
    Interleukin-12 (IL12) is also known as natural killer cell stimulatory factor (NKSF), cytotoxic lymphocyte maturation factor (CLMF) , is a heterodimeric cytokine encoded by two separate genes, IL-12A (p35) and IL-12B (p40). IL12 is naturally produced by dendritic cells, macrophages and human B-lymphoblastoid cells (NC-37) in response to antigenic stimulation. IL-12 is involved in the differentiation of naive T cells into Th0 cells and plays an important role in the activities of natural killer cells and T lymphocytes.IL-12 also has anti-angiogenic activity, which means it can block the formation of new blood vessels. Interleukin-12 subunit alpha (IL12A) also known as NKSF1, CLMF1 and P35, IL12A shows significant sequence similarity to IL-6, G-CSF, and exerts biological activities only when the IL12B is co-expressed. IL12B deficient mice are resistant to the induction of experimental chronic inflammatory diseases whereas IL12A knock-out mice develop more severe forms, suggesting opposite functions of the two subunits in the outcome of chronic inflammatory diseases.
  • References
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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