Product Detail
Product NameHuman IL-21 ELISA kit
ApplicationsELISA
Species ReactivityHu
SpecificityNatural and recombinant Human IL-21 Ligand
Target NameHuman IL-21
Application Details
Detect Range: 31.25-2000pg/ml
Sensitivity: 15pg/mL
Sample Type: Cell culture supernatant, serum, plasma (EDTA, citrate, heparin)
Sample Volume: 20 uL
Assay Time: 3 hours
Detection method: Colorimetric
Interleukin-21(IL-21) and its receptor play an important role in the regulation of the immune system. IL-21R, also called NILR (novel interleukin receptor), is a type I cytokine receptor with 4 conserved cysteine residues and an extracellular WSXWS motif. 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 native 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 appears to play an important role in B and T cell proliferation after antigen stimulation and NK cell maturation.
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