- ￥5820
- 义翘神州
- 40589-V08H13
- 北京
- 2026年01月26日
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- 详细信息
- 文献和实验
- 技术资料
- 库存：
99
- 英文名：
SARS-CoV-2 B.1.351 Spike S1+S2 trimer Protein (ECD, His tag)
- 保质期：
12个月
- 供应商：
北京义翘神州科技股份有限公司
- 保存条件：
-20℃ to -80℃
- 规格：
100 µg
纯度> 90 % as determined by SDS-PAGE. > 90 % as determined by SEC-HPLC.
内毒素< 1.0 EU per μg protein as determined by the LAL method.
生物活性Immobilized human ACE2 protein (mFc tag)(Cat:10108-H05H) at 2 μg/mL (100 μL/well) can bind SARS-CoV-2 B.1.351 Spike S1+S2 trimer Protein (ECD, His tag)(Cat:40589-V08H13),the EC50 of SARS-CoV-2 B.1.351 Spike S1+S2 trimer Protein (ECD, His tag)(Cat:40589-V08H13) is 4-30 ng/mL.
蛋白构建A DNA sequence encoding the SARS-CoV-2 Spike S1+S2 (YP_009724390.1, with mutations L18F, D80A, D215G, 241-243 deletion, R246I, K417N, E484K, N501Y, D614G, A701V, F817P, A892P, A899P, A942P, K986P, V987P and furin cleavage site mutants) expressed with the bacteriophage T4 fibritin and a polyhistidine tag at the C-terminus. The mutations were identified in the SARS-CoV-2 variant (known as variant B.1.351) which emerged in the South Africa.
表达宿主HEK293 Cells
种属SARS-CoV-2
预测 N 端Val 16
分子量The recombinant SARS-CoV-2 Spike S1+S2 consists of 1228 amino acids and predicts a molecular mass of 136.12 kDa.
缓冲液Lyophilized from sterile PBS, pH 7.4.
Please contact us for any concerns or special requirements.
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the hard copy of CoA.
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.
稳定性 & 储存条件Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃
Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
复溶A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
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文献和实验2, Hamamichi, S; et al. Rapid immunization and antibody redesign platform discovers broadly neutralizing antibodies against non-immunized SARS-CoV-2 variant. Molecular therapy : the journal of the American Society of Gene Therapy, PMID: 41077783
蛋白标签（protein tag）是指利用DNA体外重组技术，与目的蛋白一起融合表达的一种多肽或者蛋白，以便于目的蛋白的表达、检测、示踪和纯化等。随着技术的不断发展，研究人员相继开发出了具有各种不同功能的蛋白标签。 一、 新型蛋白标签 蛋白标签应用极为广泛，但仍有两个问题不容忽视：（1）蛋白标签以DNA形式编码，它需要转录并翻译成蛋白后才能发挥作用，而这种作用方式本身就是一种缺陷。例如，常用的荧光蛋白标签，在显微镜下观察时，其显像不如人工合成的荧光基团好，但是这种人工合成的荧
Science：老药新用，研究发现癌症药物马赛替尼可有效对抗
近日，来自芝加哥大学的研究团队在 Science 上发表了一篇题为 Masitinib is a broad coronavirus 3CL inhibitor that blocks replication of SARS-CoV-2 的文章。该研究结果表明，酪氨酸酶抑制剂马赛替尼在抑制新冠病毒复制活性，减轻肺部炎症方面有显著的效果，并且体外实验表明马赛替尼对于新冠病毒的多种变种（B.1.1.7, B.1.351 and P.1）也具有作用。图片来源：Science研究内容随着全球疫苗
总蛋白（包括质膜和细胞器膜蛋白），但费时费力。目前，有一种最新型有效的膜蛋白提取工具，并具有高纯度、高特异性、高载量温和提取的优点。是基于1980年科学家在牛眼视网膜中发现的一种命名为Rho1D4的氨基酸序列以及其对应的抗体来作为亲和标签纯化膜蛋白取得了非常好的效果，将Rho1D4抗体链接在琼脂糖或磁珠上，用于亲和层析带有Rho1D4标签的膜蛋白，能近乎完美的解决这些研究难题。1） 什么是Rho1D4?Rho1D4是指在牛眼视网膜细胞内的牛视紫红质C端的最后九位氨基酸。Rho1D4得名于与该序列
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