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SARS-CoV-2 Spike S1 Protein (HEK293, His) V2 is expressed in HEK293 Cells. The accession number is QHO60594.1.

| 规格 | 价格 | 库存 | 数量 |
|---|---|---|---|
| 5 μg | ¥ 493 | 现货 | |
| 10 μg | ¥ 786 | 现货 | |
| 20 μg | ¥ 1,330 | 现货 | |
| 50 μg | ¥ 2,630 | 3日内发货 | |
| 100 μg | ¥ 4,430 | 现货 |
| 生物活性 | Immobilized SARS-COV-2 Spike S1, His Tag at 1 μg/ml (100 μl/well) on the plate. Dose response curve for Human ACE2, hFc Tag with the EC50 of 45.7 ng/ml determined by ELISA. |
| 产品描述 | SARS-CoV-2 Spike S1 Protein (HEK293, His) V2 is expressed in HEK293 Cells. The accession number is QHO60594.1. |
| 种属 | SARS-COV-2 |
| 表达系统 | HEK293 Cells |
| 标签 | C-His |
| 蛋白编号 | QHO60594.1 |
| 蛋白构建 | Gln14-Arg683 |
| 蛋白纯度 | > 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC |
| 分子量 | 76.1 kDa (Predicted); 115-140 kDa (Due to glycosylation) |
| 内毒素 | < 1.0 EU/μg of the protein as determined by the LAL method. |
| 蛋白性状 | Lyophilized powder |
| 缓冲液 | Lyophilized from 0.22 μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization. |
| 复溶方法 | Reconstitute the lyophilized protein in sterile deionized 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 | 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. Solutions are shipping with dry 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. |