| 研究背景 | FGF-21 is a member of the fibroblast growth factor (FGF) family. FGF family members possess broad mitogenic and cell survival activities, and are involved in a variety of biological processes, including embryonic development, cell growth, morphogenesis, tissue repair, tumor growth and invasion. FGF-21 is produced by hepatocytes in response to free fatty acid (FFA) stimulation of a PPARa/RXR dimeric complex. This situation occurs clinically during starvation, or following the ingestion of a high-fat/low-carbohydrate diet. Upon FGF-21 secretion, white adipose tissue is induced to release FFAs from triglyceride stores. Once FFAs reach hepatocytes, they are oxidized and reduced to acetyl-CoA. |
|---|---|
| 生物活性 | Measure by its ability to induce proliferation in NIH?3T3 mouse embryonic fibroblast cells in the presence of mouse Klotho beta and heparin. The ED50 for this effect is < 2 μg/mL. |
| 种属 | 小鼠 |
| 表达系统 | E.coli |
| 标签 | His-tag at the N-terminus |
| 蛋白编号 | Q9JJN1.1 |
| 别名 | Fgf8c |
| 氨基酸序列 | AYPIPDSSPLLQFGGQVRQRYLYTDDDQDTEAHLEIREDGTVVGAAHRSPESLLELKALKPGVIQILGVKASRFLCQQPDGALYGSPHFDPEACSFRELLLEDGYNVYQSEAHGLPLRLPQKDSPNQDATSWGPVRFLPMPGLLHEPQDQAGFLPPEPPDVGSSDPLSMVEPLQGRSPSYAS with polyhistidine tag at the N-terminus |
| 分子量 | 20.76 kDa（observed：25-35 kDa） |
| 纯度 | > 98% as determined by SDS-PAGE. Ni-NTA chromatography. |
| 性状 | 粉末 |
| 组分 | The protein was lyophilized from a 0.2 μm filtered solution containing 1 × PBS, pH 8.0. |
| 内毒素含量 | < 0.1 EU/μg |
| 复溶方法 | It is recommended to reconstitute the lyophilized protein in sterile water to a concentration not less than 100 μg/mL. Do Not Vortex! Vigorous shaking may impair the biological activity of the protein. |
| 保存条件/期限 | Lyophilized protein should be stored at -5~-20℃ for 1 year. Upon reconstitution, store at 2-8℃ for up to 1 week. Further dilute in a buffer containing a carrier protein or stabilizer (e.g. 0.1% BSA, 10% FBS, 5% HSA or 5% trehalose solution), protein aliquots should be stored at -5~-20℃ or -80℃ for 3-6 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。
