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IL-21 Protein (AA 30-162)

This Recombinant IL-21 protein is expressed in 大肠杆菌(E. Coli).
产品编号 ABIN7504975
发货至: 中国
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Quick Overview for IL-21 Protein (AA 30-162) (ABIN7504975)

抗原

See all IL-21 (IL21) 蛋白
IL-21 (IL21) (Interleukin 21 (IL21))

蛋白类型

Recombinant

宿主

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资源

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大肠杆菌(E. Coli)

纯度

> 90 % as determined by reducing SDS-PAGE.
  • 产品特性

    AA 30-162

    序列

    Gln30-Ser162

    产品特性

    A DNA sequence encoding the Human IL-21 protein (Q9HBE4) (Gln30-Ser162) was expressed with a polyhistidine tag at the N-terminus.
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  • 限制

    仅限研究用
  • 状态

    Lyophilized

    缓冲液

    Lyophilized from sterile PBS, pH 7.4., 5 % trehalose, 5 % mannitol, 0.01 % tween-80.
    Normally 5 % - 8 % trehalose, mannitol and 0.01 % Tween80 are added as protectants before lyophilization.

    储存条件

    4 °C,-20 °C,-80 °C

    储存方法

    Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

    有效期

    12 months
  • 抗原

    IL-21 (IL21) (Interleukin 21 (IL21))

    别名

    IL-21

    背景

    Abbreviation: IL-21

    Target Synonym: Interleukin-21,Za11,IL21,

    Background: IL-21 is a potent cytokine regulating many cell types of the immune system. IL-21 is produced by activated T follicular helper cells (Tfh), Th17 cells, and NKT cells. Tfh-derived IL-21 plays an important role in the development of humoral immunity through its autocrine effects on the Tfh cell and paracrine effects on immunoglobulin affinity maturation, plasma cell differentiation, and B cell memory responses. IL-21 protein regulates several aspects of T cell function. It co-stimulates the activation, proliferation, and survival of CD8+ T cells and NKT cells and promotes Th17 cell polarization. IL-21 blocks the generation of regulatory T cells and their suppressive effects on CD4+ T cells. In addition to its role in T cell biology, IL-21 also plays a critical role in B cell activation, proliferation, differentiation, and apoptosis. It is also required for the migration of dendritic cells to draining lymph nodes. And IL-21 suppresses cutaneous hypersensitivity reactions by limiting allergen-specific IgE production and mast cell degranulation. In the autoimmune disease Systemic lupus erythematosus (SLE), a link between IL-21 and SLE disease susceptibility and progression was recently reported.

    分子量

    Calculated MW: 17.8 kDa

    Observed MW: 18 kDa

    UniProt

    Q9HBE4

    途径

    JAK/STAT Signaling, Regulation of Leukocyte Mediated Immunity, Positive Regulation of Immune Effector Process, Production of Molecular Mediator of Immune Response
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