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折扣/货期| 货号：AG-40B-0111-3010 | 规格：3 x 10 ug | 目录价：￥6000 |
| 货号：AG-40B-0111-C010 | 规格：10 ug | 目录价：￥3000 |
产品详情
产品名称:
IL-2 Superkine (Fc) [IL-2 (human):Fc (human) (rec.)] MultiPack
别名:
IL-2 Superkine (human):Fc (human) (rec.); Interleukin-2; T Cell Growth Factor; TCGF; Aldesleukin; Super-2
产品描述:
Interleukin-2 (IL-2) is a 133 amino acid glycoprotein with one intramolecular disulfide bond and variable glycosylation. It is secreted by activated T cells and induces proliferation and maturation of activated T cells, natural killer cells and lymphokine activated killer cells. IL-2 also stimulates proliferation of antibody-producing B cells, activates neutrophils and induces mononuclear cells to secrete IFN-gamma and TNF-alpha and -beta. Moreover, studies have shown that IL-2 is required for activation-induced apoptosis, an important homeostatic mechanism in the immune system, which is involved in the maintenance of peripheral tolerance to self-antigens. IL-2 promotes T cell proliferation and particularly naive T cells. IL-2 signaling on activated T cells is effected through a quaternary high-affinity receptor complex consisting of IL-2, IL-2Ralpha (CD25), IL-2Rbeta and IL-2Rgamma. Naive T cells are relatively insensitive to IL-2 as they only express small amounts of IL-2Rbeta and IL-2Rgamma. They only acquire sensitivity after CD25 expression, which captures the cytokine and presents it to the IL-2Rbeta and IL-2Rgamma receptors. IL-2 Superkine (Fc) is an artificial variant of IL-2 containing mutations at positions L80F / R81D / L85V / I 86V / I92F. These mutations are located in the molecule's core that acts to stabilize the structure and to give it a receptor-binding conformation mimicking native IL-2 bound to CD25. These mutations effectively eliminate the functional requirement of IL-2 for CD25 expression and elicit proliferation of T cells. Compared to IL-2, the IL-2 superkine induces superior expansion of cytotoxic T cells, leading to improved antitumour responses in vivo, and elicits proportionally less toxicity by lowering the expansion of Tregulatory cells and reducing pulmonary oedema.
宿主来源:
HEK 293 cells
靶标/特异性:
Binds to human and mouse IL-2R.
产品浓度:
0.1mg/ml after reconstitution
保存温度:
-20°C
运输温度:
BLUE ICE
预期分子量:
42kDa
产品形式:
solid
存储溶液:
Lyophilized. Contains PBS.
有效期:
Stable for at least 6 months after receipt when stored at -20°C. Working aliquots are stable for up to 3 months when stored at -20°C.
产地:
瑞士
纯度:
>95% (SDS-PAGE)
生物活性:
Triggers T cell proliferation at concentration <10ng/ml in the presence of 250ng/mL each of anti-CD3 (ANC-144-020) and anti-CD28 (ANC-177-020) antibodies.
内毒素水平:
<0.01EU/µg protein (LAL test; Lonza).
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