Name: IL 21 Recombinant Protein
Price: Inquiry

- Overview
  - IL21 Human Recombinant produced in E. Coli is a single, non-glycosylated polypeptide chain containing 132 amino acids and having a total molecular mass of 15.4kDa. The IL-21 is purified by proprietary chromatographic techniques. IL-21 is produced by CD4+ T cells in response to antigenic stimulation. Its action enhances antigen-specific responses of immune cells. The biological effects of IL-21 include induction of differentiation of T-cells-stimulated B-cells into plasma cells and memory B-cells, stimulation (in conjuction) with IL-4 of IgG production, and induction of apoptotic effects in naive B-cells and stimulated B-cells in the absence of T-cell signaling. Additionally, 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 gamma chain 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.
    
    Please contact us at for specific academic pricing.
- Properties
  - Protein Name
    
    Za11, IL-21.
    
    Source
    
    E. coli
    
    Type
    
    Recombinant Proteins
    
    Purification
    
    Greater than 97.0% as determined by SDS-PAGE.
    
    Formulation
    
    Lyophilized from PBS, pH 7.4.
    
    Storage
    
    Lyophilized Interleukin-21 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IL21 should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
    
    * For Research Use Only. Not for use in diagnostic/therapeutics procedures.
- Applications
  - Application Description
    
    It is recommended to reconstitute the lyophilized Interleukin -21 in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions. Measured by its ability to proliferate activated B cells.

IL 21 Recombinant Protein

IL 21 Recombinant Protein

We Also Recommend

IL 22 Recombinant Protein

mIL 21 Recombinant Protein

rIL 21 Recombinant Protein