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The spike protein (S) of coronavirus (CoV) attaches the virus to its cellular receptor, angiotensin-converting enzyme 2 (ACE2). A defined receptor-binding domain (RBD) on S mediates this interaction.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity. SARS-COV-2 (Omicron B.1.1.529) Spike S1 Protein (His & Avi), Biotinylated is expressed in HEK293 mammalian cells with C-His-Avi tag. The predicted molecular weight is 77.94 kDa and the accession number is A0A6G7K2L4.

| 规格 | 价格 | 库存 | 数量 | 
|---|---|---|---|
| 5 μg | ¥ 568  | 6-8日内发货 | |
| 10 μg | ¥ 928  | 6-8日内发货 | |
| 20 μg | ¥ 1,530  | 5日内发货 | |
| 50 μg | ¥ 2,970  | 5日内发货 | |
| 100 μg | ¥ 5,180  | 5日内发货 | |
| 200 μg | ¥ 9,390  | 5日内发货 | |
| 500 μg | ¥ 20,700  | 5日内发货 | 
| 生物活性 | Immobilized Biotinylated Biotinylated SARS-COV-2 Spike S1 (Omicron B.1.1.529) , His Tag at 1μg/ml (100μl/Well) on streptavidin (5μg/ml) precoated plate. Dose response curve for Human ACE2, hFc Tag with the EC50 of 0.35μg/ml determined by ELISA.  | 
| 产品描述 | The spike protein (S) of coronavirus (CoV) attaches the virus to its cellular receptor, angiotensin-converting enzyme 2 (ACE2). A defined receptor-binding domain (RBD) on S mediates this interaction.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity. SARS-COV-2 (Omicron B.1.1.529) Spike S1 Protein (His & Avi), Biotinylated is expressed in HEK293 mammalian cells with C-His-Avi tag. The predicted molecular weight is 77.94 kDa and the accession number is A0A6G7K2L4.  | 
| 种属 | SARS-CoV-2  | 
| 表达系统 | HEK293 Cells  | 
| 标签 | C-His-Avi | 
| 蛋白编号 | QHO60594.1 | 
| 别名 | Spike,S1 protein,Spike protein S1,S1 protein,S glycoprotein Subunit1  | 
| 蛋白构建 | Gln14-Arg683(A67V, HV69-70del, T95I, G142D, VYY143-145del, N211del, L212I, ins214EPE, G339D, S371L, S373P, S375F, K417N, N440K, G446S, S477N, T478K, E484A, Q493R, G496S, Q498R, N501Y, Y505H, T547K, D614G, H655Y, N679K, P681H).  | 
| 蛋白纯度 | > 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC  | 
| 分子量 | 77.94 kDa (predicted). Due to glycosylation, the protein migrates to 110-120 kDa based on Tris-Bis PAGE result. | 
| 内毒素 | < 1 EU/μg by the LAL method. | 
| 蛋白性状 | Lyophilized powder | 
| 缓冲液 | Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS (pH 7.4). Typically, 8% saccharose 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°C. 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 | The spike protein (S) of coronavirus (CoV) attaches the virus to its cellular receptor, angiotensin-converting enzyme 2 (ACE2). A defined receptor-binding domain (RBD) on S mediates this interaction.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity.  |