Recombinant Human Interleukin-21 GMP (rHuIL-21)

英文全名

Recombinant Human Interleukin-21 GMP (rHuIL-21)

英文别名

Za11

蛋白结构

Squence of Recombinant Human Interleukin-21 GMP

氨基酸序列

QGQDRHMIRM RQLIDIVDQL KNYVNDLVPE FLPAPEDVET NCEWSAFSCF QKAQLKSANT GNNERIINVS IKKLKRKPPS TNAGRRQKHR LTCPSCDSYE KKPPKEFLER FKSLLQKMIH QHLSSRTHGS EDS

Accession

Q9HBE4

Gene ID

59067

产品英文概述

Human IL-21 is encoded by IL-21 gene located on Chr. 4. It is a pleiotropic cytokine produced by CD4+ T cells in response to antigenic stimulation and can regulating immune system cells, for instance cytotoxin T cells and natural killer cells. Additionally, it can induce target cells division or proliferation. IL-21 elicits its effect through binding to IL-21R, which also contains the gamma chain found in other cytokine receptors such as IL-2, IL-4, IL-7, IL-9 and IL-15. 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. IL-21 shows having much relation with clinical illnesses, including cancer immunotherapy, viral infections and allergies.

来源

Escherichia coli.

分子量

Approximately 15.4 kDa, a single non-glycosylated polypeptide chain containing 133 amino acids.

生物活性

Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human N1186 T cells is less than 20 ng/ml, corresponding to a specific activity of > 5.0 × 104 U/mg.

外观

Sterile filtered white lyophilized (freeze-dried) powder.

配方

Lyophilized from a 0.2 um filtered concentrated solution in PBS, pH 7.4.

内毒素

Less than 0.01 EU/ug of rHuIL-21 GMP as determined by LAL method.

溶解说明

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-0.5 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.

储存条件

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.A minimum of 12 months when stored at ≤ -20 °C as supplied. Refer to lot specific COA for the Use by Date.1 month, 2 to 8 °C under sterile conditions after reconstitution.3 months, -20 to -70 °C under sterile conditions after reconstitution.

参考资料

1. Pistoia VandCocco C. 2009. J Leukoc Biol, 85: 739-43.
2. Ertelt JM, Johanns TM, Rowe JH, et al. 2010. Immunology, 131: 183-91.
3. Denman CJ, Senyukov VV, Somanchi SS, et al. 2012. PLoS One, 7: e30264.
4. Spolski R, Wang L, Wan CK, et al. 2012. J Immunol, 188: 1924-32.

纯度

> 98 % by SDS-PAGE and HPLC analyses.
SDS-PAGE of Recombinant Human Interleukin-21 GMP

包装规格

5ug/100ug

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品牌链接

Recombinant Human Interleukin-21 GMP是ChemWhat品牌授权产品并通过沃尔森销售,下面是ChemWhat上的该产品链接Recombinant Human Interleukin-21 GMP (rHuIL-21)