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- 产品名称： Recombinant Human IL4 protein
- 产品货号： CSP00249
- 货期： 现货
- 价格与订购： 1800
- 数量：
库存： 100
- 规格： 50μg 100μg 1mg
- 产品信息
- 如何订购
概述（Summary）
英文全称
Recombinant Human IL4 protein
纯度（Purity）
>90% as determined by SDS-PAGE
内毒素（Endotoxin level）
Please contact with the lab for this information.
蛋白构建（Construction）
A DNA sequence encoding the human IL4 (His25-Ser153) was fused with His tag
Accession #
P05112
表达宿主（Host）
E.coli
种属（Species）
Homo sapiens (Human)
预测分子量（Predicted Molecular Mass）
16.48 kDa
制剂（Formulation）
Supplied as solution form in PBS pH 7.5 or lyophilized from PBS pH 7.5.
运输方式（Shipping）
In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
稳定性&储存（Stability &Storage）
Use a manual defrost freezer and avoid repeated freeze thaw cycles.
Store at 2 to 8 °C for one week .
Store at -20 to -80 °C for twelve months from the date of receipt.
Store at 2 to 8 °C for one week .
Store at -20 to -80 °C for twelve months from the date of receipt.
复溶（Reconstitution）
Reconstitute in sterile water for a stock solution.A copy of datasheet will be provided with the products, please refer to it for details.
电泳图（SDS-PAGE image）
背景（Background）
背景介绍
Interleukin-4, also known as IL4, is a secreted protein which belongs to the IL-4 / IL-13 family. Interleukin-4 / IL4 has many biological roles, including the stimulation of activated B-cell and T-cell proliferation. It enhances both secretion and cell surface expression of IgE and IgG1. Interleukin-4 / IL4 also regulates the expression of the low affinity Fc receptor for IgE (CD23) on both lymphocytes and monocytes. Interleukin-4 is essential for the switching of B cells to IgE antibody production and for the maturation of T helper (Th) cells toward the Th2 phenotype. It participates in at least several B-cell activation processes as well as of other cell types. However, studies show that double mutant (Q116D, Y119D) of the murine IL4 protein (QY), both glutamine 116 and tyrosine 119, which binds to the IL4 receptor alpha, completely inhibites in a dose-dependent manner the IL4-induced proliferation of lipopolysaccharide-stimulated murine splenic B-cells, of the murine T cell line CTLL-2, and of the murine pre-B-cell line BA/F3. QY also inhibited the IL4-stimulated up-regulation of CD23 expression by lipopolysaccharide-stimulated murine splenic B-cells and abolished tyrosine phosphorylation of the transcription factor Stat6 and the tyrosine kinase Jak3 in IL4-stimulated BA/F3 cells.
分子别名（Alternative Names）
Interleukin-4,IL-4,B-cell stimulatory factor 1,BSF-1,Binetrakin,Lymphocyte stimulatory factor 1,Pitrakinra.
Note
For research use only .
地 址：
产品销售：
E - mail ：
邮 编：
Amily
