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Your Position: Home > Cytokines > IL-21 > IL1-H82F7

Biotinylated Human IL-21 Protein, Fc,Avitag™ (MALS verified)

  • Synonym
    IL21,Za11,Interleukin-21
  • Source
    Biotinylated Human IL-21, Fc,Avitag (IL1-H82F7) is expressed from human 293 cells (HEK293). It contains AA Gln 30 - Ser 162 (Accession # Q9HBE4-1).
    Predicted N-terminus: Gln 30
  • Molecular Characterization
    Online(Gln 30 - Ser 162) Q9HBE4-1

    This protein carries a human IgG1 Fc tag at the C-terminus, followed by a Avi tag (Avitag™).

    The protein has a calculated MW of 43.6 kDa. The protein migrates as 50-55 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Biotinylation
    Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
  • Biotin:Protein Ratio
    The biotin to protein ratio is 0.5-1 as determined by the HABA assay.
  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >95% as determined by SDS-PAGE.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, 25 mM Arginine, 150 mM NaCl, 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.

    This product is stable after storage at:

    1. -20°C to -70°C for 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
SDS-PAGE
Biotinylated Human IL-21, Fc,Avitag (Cat. No. IL1-H82F7) SDS-PAGE gel

Biotinylated Human IL-21, Fc,Avitag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.

SEC-MALS
Biotinylated Human IL-21, Fc,Avitag (Cat. No. ) MALS images

The purity of Biotinylated Human IL-21, Fc,Avitag (Cat. No. IL1-H82F7) was more than 85% and the molecular weight of this protein is around 110-130 kDa verified by SEC-MALS.

Bioactivity-ELISA
Biotinylated Human IL-21, Fc,AvitagBiotinylated Human IL-21, Fc,Avitag (Cat. No. IL1-H82F7) ELISA bioactivity

Immobilized Human IL-21 R, Fc Tag (Cat. No. ILR-H5257) at 5 μg/mL (100 μL/well) can bind Biotinylated Human IL-21, Fc,Avitag (Cat. No. IL1-H82F7) with a linear range of 0.2-6 ng/mL (QC tested).

  • Background
    Interleukin-21 (IL-21) is a secreted protein which belongs to the IL-15 / IL-21 family. Interleukin-21 / IL-21 belongs to a family of cytokines that bind to a composite receptor consisting of a private receptor (IL21R) and the common cytokine receptor gamma chain (gamma(C)). Interleukin-21 / IL-21 impacts a number of cell types, including CD8+ memory T cells, NK cells and subsets of CD4 memory T cells. The IL-21R is widely distributed on lympho-haematopoietic cells. IL-21 is a pleiotropic cytokine produced by CD4+ T cells in response to antigenic stimulation. Its action generally enhances antigen-specific responses of immune cells. IL-21 promotes the anti-tumor activity of CD8+ T-cells and NK cells. IL-21 exerts its effect through binding to a specific type I cytokine receptor, IL-21R, which also contains the γ chain (γc) found in other cytokine receptors including IL-2, IL-4, IL-7, IL-9 and IL-15. The IL-21/IL-21R interaction triggers a cascade of events which includes activation of the tyrosine kinases JAK1 and JAK3, followed by activation of the transcription factors STAT1 and STAT3.
  • Clinical and Translational Updates
      
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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Price(USD) : $350.00

Price(USD) : $1380.00

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Drug Development Status

  • Number of Launched Drugs:0 Details
  • Number of Drugs in Clinical Trials:3 Details
  • Latest Research Phase:Phase 2 Clinical

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