Signal regulatory protein α (SIRPα) is a regulatory membrane glycoprotein from SIRP family expressed mainly by myeloid cells and also by stem cells or neurons.SIRPα acts as inhibitory receptor and interacts with a broadly expressed transmembrane protein CD47 also called the "don´t eat me" signal.Cancer cells highly expressed CD47 that activate SIRP α and inhibit macrophage-mediated destruction. SIRP alpha V2 Protein, Human, Recombinant (aa 31-369, His) is expressed in HEK293 mammalian cells with C-His tag. The predicted molecular weight is 38 kDa and the accession number is AAH26692.1.
规格 | 价格/CNY | 货期 | 数量 | |
---|---|---|---|---|
100 μg | ¥ 2,660 | 5日内发货 | ||
500 μg | ¥ 10,600 | 5日内发货 | ||
1 mg | ¥ 17,800 | 5日内发货 |
生物活性 | 1. Immobilized Human SIRP alpha V2, His Tag at 1μg/ml (100μl/Well) on the plate. Dose response curve for Human CD47, hFc Tag with the EC50 of 0.15μg/ml determined by ELISA. 2. Human SIRP alpha V2, His Tag captured on Protein A Chip via Anti-His Antibody can bind Anti-SIRP alpha Ab., hFc Tag with an affinity constant of 9.11nM as determined in SPR assay. |
产品描述 | Signal regulatory protein α (SIRPα) is a regulatory membrane glycoprotein from SIRP family expressed mainly by myeloid cells and also by stem cells or neurons.SIRPα acts as inhibitory receptor and interacts with a broadly expressed transmembrane protein CD47 also called the "don´t eat me" signal.Cancer cells highly expressed CD47 that activate SIRP α and inhibit macrophage-mediated destruction. SIRP alpha V2 Protein, Human, Recombinant (aa 31-369, His) is expressed in HEK293 mammalian cells with C-His tag. The predicted molecular weight is 38 kDa and the accession number is AAH26692.1. |
种属 | Human |
表达系统 | HEK293 Cells |
标签 | C-His |
蛋白编号 | AAH26692.1 |
别名 | MYD-1, SHPS1, MFR, PTPNS1, CD172a, SIRPA, SIRP α V2/CD172a, SHPS-1, BIT, MYD1, SIRPα2, SIRPalpha2, P84, SIRP α, SIRP alpha |
蛋白构建 | Glu31-Arg369 |
蛋白纯度 | > 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC |
分子量 | 38 kDa (predicted). Due to glycosylation, the protein migrates to 55-65 kDa based on Tris-Bis PAGE result. |
内毒素 | < 1 EU/μg by the LAL method. |
缓冲液 | Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS (pH 7.4). Typically, 8% trehalose is incorporated as a protective agent before lyophilization. |
复溶方法 | Reconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing. |
存储 |
It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted protein solutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots. |
运输方式 |
In general, Lyophilized powders are shipping with blue ice. |
研究背景 | Signal regulatory protein α (SIRPα) is a regulatory membrane glycoprotein from SIRP family expressed mainly by myeloid cells and also by stem cells or neurons.SIRPα acts as inhibitory receptor and interacts with a broadly expressed transmembrane protein CD47 also called the "don´t eat me" signal.Cancer cells highly expressed CD47 that activate SIRP α and inhibit macrophage-mediated destruction. |
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SIRP alpha V2 Protein, Human, Recombinant (aa 31-369, His) SHPS 1 P 84 MYD-1 SHPS1 MFR PTPNS1 CD172a PTPNS 1 SIRPA SIRP α V2/CD172a SHPS-1 BIT MYD1 MYD 1 SIRPα2 PTPNS-1 SIRPalpha2 P84 P-84 SIRP α SIRP alpha recombinant recombinant-proteins proteins protein