Active Recombinant Mouse Il21, Fc-tagged

• Cat.No.: Il21-338M
• Product Overview: The extracellular domain of mouse IL-21 (aa 18-146) is fused to the N-terminus of the Fc region of a mutant mouse IgG2a.

Specification

• Species: Mouse
• Source: CHO
• Tag: Fc
• Protein Length: 18-146 a.a.
• Description: Interleukin-21 (IL-21) is a key factor in the transition between innate and adaptive immune responses secreted by activated T cells. The IL-21 receptor (IL-21R) is expressed in lymphoid tissue, in particular by NK, B, T and dendritic cells, macrophages and endothelial cells. Recent evidence suggests that IL-21 plays a supportive role in the proliferation of T and B cells and influences the cytolytic activity of natural killer cells. IL-21 has been shown to up-regulate genes associated with innate immunity and to inhibit the differentiation of na?ve T helper cells. IL-21 specifically inhibits IFN-gamma production from developing TH1 cells and is preferentially expressed by TH2 cells. Furthermore IL-21 has been identified as a growth and survival factor for human myeloma cells. IL-21/IL-21R interactions have a unique role in sequentially activating both innate and adaptive immune responses against poorly immunogenic tumors, leading to tumor rejection that is perforin dependent but IFN-gamma independent.
• Form: Lyophilized from 0.2μm-filtered solution in PBS.
• Bio-activity: Shows the biological function of the IL-21 moiety and exerts a prolonged circulating half-life caused by the modified Fc domain.
• Purity: ≥98% (SDS-PAGE)
• Stability: Stable for at least 1 year after receipt when stored at -20°C. Working aliquots are stable for up to 3 months when stored at -20°C.
• Storage: Short Term Storage: +4°C; Long Term Storage: -20°C. Avoid freeze/thaw cycles.

Gene Information

• Gene Name: Il21 interleukin 21 [ Mus musculus ]
• Official Symbol: Il21
• Synonyms: IL21; interleukin 21; interleukin-21; IL-21
• Gene ID: 60505
• mRNA Refseq: NM_021782
• Protein Refseq: NP_068554
• Pathway: Cytokine-cytokine receptor interaction, organism-specific biosystem; Cytokine-cytokine receptor interaction, conserved biosystem; Jak-STAT signaling pathway, organism-specific biosystem; Jak-STAT signaling pathway, conserved biosystem
• Function: cytokine activity; cytokine receptor binding; interleukin-2 receptor binding