Optimal preservation of protein structure, post-translational modifications and functions.
产品特性
Recombinant human Interleukin-7 / IL7 (transcript variant 1) protein expressed in E. coli.
Produced with end-sequenced ORF clone
Tested for bioactivity.
内毒素水平
Endotoxin level is <0.1 ng/μg of protein (<1EU/μg).
Biological Activity Comment
ED50 was determined by the dose-dependent stimulation of the proliferation of murine 2E8 cells is less than or equal to 0.5 ng/ml, corresponding to a specific activity of > 2 x 10^6 units/mg.
IL7
宿主: 人
宿主: HEK-293 Cells
Recombinant
The purity of the protein is greater than 95 % as determined by SDS-PAGE and Coomassie blue staining.
应用备注
Recombinant human proteins can be used for: Native antigens for optimized antibody production Positive controls in ELISA and other antibody assays Protein-protein interaction In vitro biochemical assays and cell-based functional assays
限制
仅限研究用
缓冲液
Lyophilized from a 0.2 μM filtered solution of 20 mM phosphate buffer,100 mM NaCl, pH 7.2
注意事项
Resuspend the protein in the desired concentration in proper buffer
储存条件
-80 °C
储存方法
Store at -80°C. Thaw on ice, aliquot to individual single-use tubes, and then re-freeze immediately. Only 2-3 freeze thaw cycles are recommended.
抗原
IL-7 (IL7)
(Interleukin 7 (IL7))
别名
Interleukin-7,il7
背景
The protein encoded by this gene is a cytokine important for B and T cell development. This cytokine and the hepatocyte growth factor (HGF) form a heterodimer that functions as a pre-pro-B cell growth-stimulating factor. This cytokine is found to be a cofactor for V(D)J rearrangement of the T cell receptor beta (TCRB) during early T cell development. This cytokine can be produced locally by intestinal epithelial and epithelial goblet cells, and may serve as a regulatory factor for intestinal mucosal lymphocytes. Knockout studies in mice suggested that this cytokine plays an essential role in lymphoid cell survival. Alternative splicing results in multiple transcript variants encoding distinct isoforms. Additional splice variants have been described but their presence in normal tissues has not been confirmed.[provided by RefSeq, Dec 2010].