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- 产品名称：重组大鼠成纤维细胞生长因子21蛋白
- 产品型号：rRtFGF-21
- 产品展商：KALANG
- 产品文档：无相关文档
- 发布时间：2018-09-14
- 在线询价
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.
产品描述
重组大鼠成纤维细胞生长因子21蛋白
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Species
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Rat
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Accession
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Q8VI80
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GeneID
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170580
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Source
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Escherichia coli.
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Molecular Weight
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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.
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Quantity
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5µg/25µg/1000µg
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AA Sequence
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AYPISDSSPL LQFGGQVRQR YLYTDDDQDT EAHLEIREDG TVVGTAHRSP ESLLELKALK PGVIQILGVK ASRFLCQQPD GTLYGSPHFD PEACSFRELL LKDGYNVYQS EAHGLPLRLP QKDSQDPATR GPVRFLPMPG LPHEPQEQPG VLPPEPPDVG SSDPLSMVEP LQGRSPSYAS
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Purity
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> 95 % by SDS-PAGE and HPLC analyses.
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Biological Activity
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重组大鼠成纤维细胞生长因子21蛋白Fully biologically active when compared to standard. The ED50 as 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 × 103 IU/mg in the presence of 5 µg/ml of rMuKlotho-β and 10 μg/ml of heparin.
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Physical Appearance
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White lyophilized powder.
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Formulation
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Lyophilized from a 0.2 µm filtered concentrated solution in PBS, 500 mM NaCl, pH 7.4.
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Endotoxin
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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.
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Reconstitution
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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.
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Storage
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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.
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重组大鼠成纤维细胞生长因子21蛋白
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SDS-PAGE
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Reference
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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
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Background
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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.
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