Human IL-21 Recombinant Protein Fc Tag Lyophilized from Innovative Research has been recombinantly produced in HEK293 cells. This is a Lyophilized protein buffered in 50 mM Tris, 100 mM Glycine, 150 mM NaCl, pH7.5 with a purity of >95% as determined by SDS-PAGE..
More Details:
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Species: Human
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Target: IL21
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Purity: >95% as determined by SDS-PAGE.
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Source: HEK293 cells
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Storage Conditions: Lyophilized Protein should be stored at -20°C or lower for long term storage. Upon reconstitution, working aliquots should be stored at -20°C or -70°C. Avoid repeated freeze-thaw cycles.
Additional Information:
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 ? chain (?c) 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.
This protein carries a human IgG1 Fc Tag at the C-terminal. The protein has a calculated MW of 41.9 kDa. The protein migrates as 45 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.. At Innovative Research we provide reliable, consistent products that deliver reliable, consistent results.
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