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SARS-CoV-2 Spike RBD Protein (V367F, His)

产品编号 TMPY-05708
SARS-CoV-2 Spike RBD Protein (V367F, His) is expressed in HEK293 mammalian cells. The predicted molecular weight is 26.59 kDa and the accession number is A0A6G7K2L4.
规格价格库存数量
100 μg
¥ 4,440
5日内发货
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常见问题解答
抑制剂是否需要灭菌?
如果您使用 DMSO 配制:不建议灭菌,DMSO 本身具有极强的杀菌力,配制好的溶液就是无菌溶液。如果您确实担心的,可以放置 4℃ 冰箱过夜放置即可;依然有顾虑的话,需用有机系专用滤膜过滤。 如果您使用水配制:可以用 0.22 μm 滤膜过滤灭菌。
抑制剂能否用于细胞实验?
可以的,我们的抑制剂都可以用于细胞/体外实验。但有些化合物还没有用于细胞实验的文献,这种情况下,建议您先做预实验,确保研究的可行性。
期货产品没有纯度啊?这个纯度在哪里看
期货产品的话,是没有纯度信息,也没有质检信息的。有了现货之后我们会进行质检,测出试剂的纯度和结构等相关信息,并且展示在官网的活性描述上方。
PEG300 可以用 PEG400 替代吗?
PEG300 具有适度的粘稠度,有利于药物的溶解和给药过程,同时也能够提供良好的耐受性,不会对动物造成不良影响。PEG400 可以替代 PEG300。 PEG600 不是很建议,因为熔点接近常温。
产品的溶解度是多少?
建议您先查询TargetMol官网、陶术官网,看该抑制剂的产品介绍,找到溶解度信息。如果没有相应信息,建议联系技术对该化合物的溶解度进行测定。
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产品信息

生物活性
Measured by its binding ability in a functional ELISA. Immobilized human ACE2 protein (Fc tag) at 2 μg/mL (100 μL/well) can bind SARS-CoV-2 (2019-nCoV) Spike RBD-His (V367F) Recombinant Protein, the EC50 of SARS-CoV-2 (2019-nCoV) Spike RBD-His (V367F) Recombinant Protein is 20-50 ng/mL.
产品描述
SARS-CoV-2 Spike RBD Protein (V367F, His) is expressed in HEK293 mammalian cells. The predicted molecular weight is 26.59 kDa and the accession number is A0A6G7K2L4.
种属
SARS-CoV-2
表达系统
HEK293 Cells
标签C-His
蛋白编号A0A6G7K2L4
蛋白构建
A DNA sequence encoding the SARS-CoV-2 (2019-nCoV) Spike Protein (RBD) (YP_009724390.1(V367F)) (Arg319-Phe541) was expressed with a polyhistidine tag at the C-terminus. Predicted N terminal: Arg319
蛋白纯度
> 95 % as determined by SDS-PAGE.
分子量26.59 kDa (predicted)
内毒素< 1.0 EU/μg of the protein as determined by the LAL method.
缓冲液Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
复溶方法
A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
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 (S) glycoprotein of coronaviruses contains protrusions that will only bind to certain receptors on the host cell. Known receptors bind S1 are ACE2, angiotensin-converting enzyme 2; DPP4, dipeptidyl peptidase-4; APN, aminopeptidase N; CEACAM, carcinoembryonic antigen-related cell adhesion molecule 1; Sia, sialic acid; O-ac Sia, O-acetylated sialic acid. The spike is essential for both host specificity and viral infectivity. The term 'peplomer' is typically used to refer to a grouping of heterologous proteins on the virus surface that function together. The spike (S) glycoprotein of coronaviruses is known to be essential in the binding of the virus to the host cell at the advent of the infection process. It's been reported that SARS-CoV-2 (COVID-19 coronavirus, 2019-nCoV) can infect the human respiratory epithelial cells through interaction with the human ACE2 receptor. The spike protein is a large type I transmembrane protein containing two subunits, S1 and S2. S1 mainly contains a receptor binding domain (RBD), which is responsible for recognizing the cell surface receptor. S2 contains basic elements needed for the membrane fusion. The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity. The main functions for the Spike protein are summarized as: Mediate receptor binding and membrane fusion; Defines the range of the hosts and specificity of the virus; Main component to bind with the neutralizing antibody; Key target for vaccine design; Can be transmitted between different hosts through gene recombination or mutation of the receptor binding domain (RBD), leading to a higher mortality rate.

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