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.
规格 | 价格/CNY | 货期 | 数量 | |
---|---|---|---|---|
100 μg | ¥ 2,960 | 5日内发货 | ||
500 μg | ¥ 11,800 | 5日内发货 | ||
1 mg | ¥ 19,700 | 5日内发货 |
生物活性 | 1. Immobilized SARS-COV-2 Spike RBD, His Tag at 0.5μg/ml (100μl/Well) on the plate. Dose response curve for Human ACE2, hFc Tag with the EC50 of 7.5ng/ml determined by ELISA (QC Test). 2. Human ACE2, hFc Tag captured on Protein A chip, can bind SARS-COV-2 Spike RBD, His Tag with an affinity constant of 13.8nM as determined in a SPR assay. |
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. |
种属 | SARS-CoV-2 |
表达系统 | HEK293 |
标签 | C-His-Avi |
蛋白编号 | A0A6G7K2L4 |
别名 | S glycoprotein RBD, Spike protein RBD, S protein RBD |
蛋白构建 | Recombinant SARS-COV-2 Spike RBD Protein is expressed from HEK293 with His tag and Avi tag at the C-Terminus. It contains Arg319-Asn532.[Accession |QHD43416.1] |
蛋白纯度 | > 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC |
分子量 | The protein has a predicted MW of 27 kDa. Due to glycosylation, the protein migrates to 36-40 kDa based on Tris-Bis PAGE result. |
内毒素 | Less than 1EU per μg by the LAL method. |
缓冲液 | Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization. |
复溶方法 | Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water. |
存储 |
-20 to -80°C for 12 months as supplied from date of receipt. -20 to -80°C for 3-6 months in unopened state after reconstitution. 2-8°C for 2-7 days after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles. |
运输方式 |
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise. |
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. |
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SARS-COV-2 Spike RBD Protein (His & Avi) S glycoprotein RBD Spike protein RBD S protein RBD recombinant recombinant-proteins proteins protein