IL-4 Recombinant Protein-细胞因子、趋化因子与生长因子-深圳欣博盛生物科技有限公司

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IL-4 Recombinant Protein

品牌：ProSci LLC

官网链接

说明书

折扣/货期

货号：91-040

规格：0.05 mg

目录价：￥10126.35

产品详情

* 以下信息仅供参考，详情请以原厂网站为准

产品名称:

IL-4 Recombinant Protein

别名:

Interleukin-4, IL-4, B-Cell Stimulatory Factor 1, BSF-1, Binetrakin, Lymphocyte Stimulatory Factor 1, Pitrakinra, IL4

表达系统:

E. coli

保存温度:

Lyophilized protein should be stored at -20˚C, though stable at room temperature for 3 weeks.
Reconstituted protein solution can be stored at 4-7˚C for 2-7 days.
Aliquots of reconstituted samples are stable at -20˚C for 3 months.

运输温度:

Blue Ice

产品形式:

Lyophilized

存储溶液:

Lyophilized from a 0.2 um filtered solution of 20mM PB, 150mM NaCl, pH 7.4. It is not recommended to reconstitute to a concentration less than 100 ug/ml. Dissolve the lyophilized protein in ddH2O.

产地:

美国

生产商:

Prosci

功能与背景:

Interleukin-4 (IL-4) is a pleiotropic cytokine that regulates diverse T and B cell responses including cell proliferation, survival and gene expression. IL-4 is produced by mast cells, T cells, and bone marrow stromal cells. IL-4 regulates the differentiation of naive CD4+ T cells into helper Th2 cells, characterized by their cytokine-secretion profile that includes secretion of IL-4, IL-5, IL-6, IL-10, and IL-13, which favor a humoral immune response. Another dominant function of IL-4 is the regulation of immunoglobulin class switching to the IgG1 and IgE isotypes. Excessive IL-4 production by Th2 cells has been associated with elevated IgE production and allergic response.

纯度:

Greater than 95% as determined by reducing SDS-PAGE.
Endotoxin level less than 0.1 ng/ug (1 IEU/ug) as determined by LAL test.

生物活性:

ED50 is less than 2 ng/ml as determined by the dose-dependent stimulation of TF-1 cells.
Specific Activity of 5.0 x 10⁶ IU/mg.

Accession #:

P05112

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