Recombinant SARS-CoV-2 S1+S2 trimer Protein (C-His Tag)(Omicron)

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- 表达系统: HEK293 Cells
- 蛋白编码: P0DTC2
- 应用性: BLI
别称 |
2019-nCoV Spike protein trimer;Omicron Spike;S trimer protein;SARS-CoV-2 Spike
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表达系统 |
HEK293 Cells
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序列 |
Cys15-Gln1208(A67V, H69del, V70del, 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, N764K, D796Y, N856K, Q954H, N969K and L981F)
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蛋白编码 |
P0DTC2
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种属 |
SARS-CoV-2
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计算分子量 |
136.7 kDa
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表观分子量 |
150-220 kDa
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标签 |
C-His
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生物活性 |
1. Loaded Human ACE2-Fc(PKSR030492) on Protein A Biosensor, can bind SARS-CoV-2 S-trimer-His (Omicron, B.1.1.529)(PKSV030478) with an affinity constant of 0.5 nM as determined in BLI assay.
2. Loaded Anti-SARS-CoV-2 S1 mAb-Fc on Protein A Biosensor, can bind SARS-CoV-2 S-trimer-His (Omicron, B.1.1.529)(PKSV030478) with an affinity constant of 10.7 nM as determined in BLI assay.
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纯度 |
> 95 % as determined by reducing SDS-PAGE.
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内毒素 |
Please contact us for more information.
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保存条件 |
Store at < -20°C, stable for 6 months. Please minimize freeze-thaw cycles.
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运输条件 |
This product is provided as liquid. It is shipped at frozen temperature with blue ice/gel packs. Upon receipt, store it immediately at < - 20°C.
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制剂 |
Supplied as a 0.2 μm filtered solution of PBS, pH7.4.
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复溶方法 |
Not Applicable
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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 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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实验操作视频
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