产品信息
| 别名 | Somatamedin C, IGF-IA |
| 物种 | Human |
| 表达宿主 | E.coli |
| 序列信息 | MGPETLCGAELVDALQFVCGDRGFYFNKPTGYG,S.SSRRAPQTGIVDECCFRSCDLRRLEMYCAPLKPAKSA with polyhistidine tag at the C-terminus. |
| 检索号 | P05019.1 |
| 分子量 | 8.59 kDa |
| 表观分子量 | 8-10 kDa |
| 标签 | His-tag at the C-terminus |
| 生物活性 | Measure by its ability to induce MCF-7 cells proliferation. The ED50 for this effect is 0.9-3.1 ng/mL. The specific activity of recombinant human IGF-I is approximately >1.2 x 10^3 IU/mg. |
产品特性
| 纯度 | >95% as determined by SDS-PAGE. Ni-NTA chromatography. |
| 内毒素 | <0.01 EU per 1 μg of the protein by the LAL method. |
| 保存 | Lyophilized protein should be stored at -5~-20°C for 1 year. Upon reconstitution,store at 2-8°C 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°C or -80°C for 3-6 months. |
| 运输 | Ambient temperature or ice pack. |
| 制剂 | The protein was lyophilized from a 0.2 µm filtered solution containing 1X PBS, pH 7.4. |
| 复融 | 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. |
背景介绍
Insulin-like growth factor 1 (IGF-1), also called somatomedin C, is a protein that in humans is encoded by the IGF1 gene. IGF-1 is a hormone similar in molecular structure to insulin. It plays an important role in childhood growth and continues to have anabolic effects in adults. A synthetic analog of IGF-1, mecasermin, is used for the treatment of growth failure.
