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活性验证

Recombinant Human IL-7RA/CD127 Protein (RP00976)

Recombinant Human IL-7RA/CD127 Protein was determined by SDS-PAGE with Coomassie Blue, showing a band at 70-90 kDa.

Immobilized Recombinant Human IL7 at 2 μg/mL (100 μL/well) can bind Recombinant Human IL7R alpha, the EC50 of Recombinant Human IL7R alpha is 48.44 ng/mL.

Immobilized CD127 Mouse mAb at 1μg/mL (25 μL/well) can bind Human CD34 with a linear range of 0.46-5.89ng/mL.

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货号: RP00976
促销价:   ¥620
货    期:现货产品
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详细信息

种属
Human
表达宿主
HEK293 cells
Calculated MW
51.67 kDa
Observed MW
70-90 kDa
标签
C-hFc&His
纯度
> 95% by SDS-PAGE.
内毒素
< 1.0 EU/μg of the protein by LAL method.
制剂
Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.Contact us for customized product form or formulation.
描述
Recombinant Human IL-7RA/CD127 Protein is produced by HEK293 expression system. The target protein is expressed with sequence (Glu21-Gly236) of human IL7R alpha (Accession #NP_002176.2) fused with an Fc, 6×His tag at the C-terminus.
储存
Store at -20℃.Store the lyophilized protein at -20℃ to -80 ℃ up to 1 year from the date of receipt.
After reconstitution, the protein solution is stable at -20℃ for 3 months, at 2-8℃ for up to 1 week.未开盖的干粉蛋白在 -20°C至-80°C可保存12个月;
复溶之后,蛋白溶液在-20°C及以下可保存3个月,在2-8℃可保存1周。
生物活性
Measured by its binding ability in a functional ELISA. Immobilized Recombinant Human IL7 at 2 μg/mL (100 μL/well) can bind Recombinant Human IL7R alpha, the EC50 of Recombinant Human IL7R alpha is 48.44 ng/mL.
2.Measured by its binding ability in a functional ELISA.Immobilized CD127 Mouse mAb at 1μg/mL (25 μL/well) can bind Human CD34 with a linear range of 0.46-5.89ng/mL.
复溶
Centrifuge the vial before opening. Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water. Avoid vortex or vigorously pipetting the protein. For long term storage, it is recommended to add a carrier protein or stablizer (e.g. 0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose), and aliquot the reconstituted protein solution to minimize free-thaw cycles.收到重组蛋白产品之后请检查蛋白冻干粉末是否贴于瓶底,如果粉末浮起,开盖之前请先低温离心。将蛋白用说明书中指定的缓冲液复溶至0.1-0.5 mg/mL(请注意蛋白复溶浓度不能低于0.1 mg/mL),室温平衡5-10 min保证充分溶解,复溶过程中请不要剧烈涡旋及吹打蛋白溶液。如需长期储存,建议复溶时添加载体蛋白或者稳定剂(如0.1% BSA, 5% HSA, 10% FBS 或者 5% 海藻糖),同时将复溶后的蛋白溶液按照需求进行分装,储存于-20°C至-80°C,随取随用,避免反复冻融。

蛋白复溶计算器

请在蛋白复溶计算器中输入蛋白总质量和所需终浓度,快速计算您需要添加溶液的体积吧!
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背景信息

This protein also known as CD127, is a 75 kDa hematopoietin receptor superfamily member that plays an important role in lymphocyte differentiation, proliferation, and survival. IL-7 receptor alpha (CD127) signaling is essential for T-cell development and regulation of naive and memory T-cell homeostasis. IL-7RA is critically required for the proper development and function of lymphoid cells. Studies from both pathogenic and controlled HIV infection indicate that the containment of immune activation and preservation of CD127 expression are critical to the stability of CD4(+) T cells in infection. Factors relevant to HIV infection that could potentially decrease CD127 expression on human CD8(+) T cells. CD127 down-regulation may be an important contributor to HIV-associated T-cell dysfunction. In addition to IL-7, IL-7RA also associates with TSLPR to form the functional receptor for thymic stromal lymphopoietin (TSLP) which indirectly regulates T cell development by modulating dendritic cell activation. Mutations in the human IL-7RA gene cause a type of severe combined immunodeficiency in which the major deficiencies are in T cell development, whereas B and NK cells are relatively normal in number. Variation in the IL7RA gene was recently found associated with multiple sclerosis (MS). Soluble CD127 (sCD127) appears to play an important role in the immunopathogenesis of several chronic infections, multiple sclerosis, and various cancers.