| 研究背景 | Mouse Interleukin 13 (mIL-13) is a pleiotropic Cytokine produced by activated Th2 cells. IL-13 induces B cell proliferation and immunoglobin production. It contains a four helical bundle with two internal disulfide bonds. Mouse IL13 shares 58% sequence identity with human Protein and exhibits cross-species activity. IL13 signals via Receptor IL13R (type2, IL4R) and activates STAT-6. IL13 initially binds IL-13Rα1 with low affinity and triggers association of IL4Rα, generating a high affinity heterodimeric Receptor IL13R and eliciting downstream signals. IL13 also binds IL-13Rα2 with high affinity, which plays a role in a negative feedback system of IL13 signaling. IL13 is an important mediator of allergic inflammation and disease. |
|---|---|
| 生物活性 | Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. The ED50 for this effect is 11.34 ng/mL. |
| 种属 | 小鼠 |
| 表达系统 | Human Cells |
| 标签 | C-6His |
| 蛋白编号 | P20109 |
| 别名 | Interleukin-13;IL-13;T-Cell Activation Protein P600;Il13;Il-13 |
| 氨基酸序列 | Pro22-Phe131 |
| 分子量 | 13.1 kDa（observed：14-30 kDa） |
| 纯度 | > 95% as determined by reducing SDS-PAGE. |
| 性状 | 粉末 |
| 组分 | Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4. |
| 内毒素含量 | < 0.1 EU/μg |
| 复溶方法 | Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/mL. Dissolve the lyophilized protein in sterile water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles. |
| 保存条件/期限 | Lyophilized protein should be stored at -5~-20℃, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at -5~-20℃ for 3 months. |
| 运输条件 | Ambient temperature or ice pack. |
请在以下方框中输入您的动物实验信息后点击计算，可以得到母液配置方法和体内配方的制备方法：
比如您的给药剂量是10 mg/kg，每只动物体重20 g，给药体积100 μL， 一共给药动物10只，您使用的配方为 10% DMSO + 40% PEG300 + 5% Tween 80 + 45% Saline / PBS / ddH2O， 那么您的工作液浓度为2 mg/mL。
母液配置方法：2 mg 药物溶于 100 μL DMSO （ 母液浓度为 20 mg/mL ）, 如您需要配置的浓度超过该产品的溶解度，请先与我们联系。
体内配方的制备方法： 取 100 μL DMSO 母液， 添加 400 μL PEG300 混匀澄清， 再加 50 μL Tween 80, 混匀澄清, 再加 450 μL Saline / PBS / ddH2O 混匀澄清
以上为“体内实验配液计算器”的使用方法举例，并不是具体某个化合物的推荐配制方式，请根据您的实验动物和给药方式选择适当的溶解方案。
方案所需的各类助溶剂如： DMSO， PEG300， PEG400， Tween 80， SBE-β-CD， 玉米油等， 均可在诺渊网站点击购买。
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL Saline/PBS/ddH2O，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
