产品详情
简单介绍：
重组大鼠成纤维细胞生长因子21蛋白与其它公司提供的重组蛋白不同，rRtFGF-21蛋白产品为采用CFS的无细胞麦胚蛋白合成系统表达出来的重组蛋白，可表达出对细胞有毒性、易被蛋白酶降解的蛋白；并获得具有良好的可溶性，并有翻译后修饰、从而部分具有功能的蛋白.同时独有的全自动蛋白纯化技术则简便高效，将蛋白纯化过程中对蛋白的损伤降低到*小程度.重组大鼠成纤维细胞生长因子21蛋白（全长序列）产品可用于Western Blot验证、抗体制备、蛋白检测、ELISA等试验中.
详情介绍：
重组大鼠成纤维细胞生长因子21蛋白
| Species | Rat |
| Accession | Q8VI80 |
| GeneID | 170580 |
| Source | Escherichia coli. |
| Molecular Weight | 重组大鼠成纤维细胞生长因子21蛋白Approximately 19.7 kDa, a single non-glycosylated polypeptide chain containing 180 amino acids. |
| Quantity | 5µg/25µg/1000µg |
| AA Sequence | AYPISDSSPL LQFGGQVRQR YLYTDDDQDT EAHLEIREDG TVVGTAHRSP ESLLELKALK PGVIQILGVK ASRFLCQQPD GTLYGSPHFD PEACSFRELL LKDGYNVYQS EAHGLPLRLP QKDSQDPATR GPVRFLPMPG LPHEPQEQPG VLPPEPPDVG SSDPLSMVEP LQGRSPSYAS |
| Purity | > 95 % by SDS-PAGE and HPLC analyses. |
| Biological Activity | 重组大鼠成纤维细胞生长因子21蛋白Fully biologically active when compared to standard. The ED50as determined by thymidine uptake assay using FGF-receptors transfected BaF3 cells is less than 0.5 μg/ml, corresponding to a specific activity of > 2.0 × 103IU/mg in the presence of 5 µg/ml of rMuKlotho-β and 10 μg/ml of heparin. |
| Physical Appearance | White lyophilized powder. |
| Formulation | Lyophilized from a 0.2 µm filtered concentrated solution in PBS, 500 mM NaCl, pH 7.4. |
| Endotoxin | 重组大鼠成纤维细胞生长因子21蛋白Less than 1 EU/µg of rRtFGF-21 as determined by LAL method. |
| Reconstitution | We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions. |
| Storage | This lyophilized preparation is stable at 2-8 °C, but should be kept at -20 °C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 °C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 °C to -70 °C. Avoid repeated freeze/thaw cycles. |
| 重组大鼠成纤维细胞生长因子21蛋白 | |
| SDS-PAGE |  |
| Reference | 1. Nishimura T, Nakatake Y, Konishi M, et al. 2000. Biochim Biophys Acta. 1492:203-6. 2. Kharitonenkov A, Shiyanova TL, Koester A, et al. 2005. J Clin Invest. 115:1627-35. 3. Kurosu H, Choi M, Ogawa Y, et al. 2007. J Biol Chem. 282:26687-95 |
| Background | Fibroblast growth factor 21 (FGF-21) encoded by the FGF-21 gene belongs to the large FGF family and it is specifically induced by HMGCS2 activity. In mice, brown adipose tissue becomes a source of systemic FGF-21 after cold exposure. FGF-21 stimulates glucose uptake in differentiated adipocytes via the induction of glucose transporter SLC2A1/GLUT1 expression (but not SLC2A4/GLUT4 expression) and the activity depends on the presence of KLB. Recombinant rat FGF-21 contains 180 amino acids residues and show limited binding to heparin. In addition, rat FGF-21 respectively shows 81 % and 92 % a.a. identity to human and murine FGF-21, and it show activity on murine and human cells. |
