IHU-VM1S1-100μg / 询价
IHU-VM1S1-500μg / 询价
IHU-VM1S1-500μgx2 / 询价
SARS-COV-2 Spike S1 (B.1.640.2/IHU) Protein
Recombinant SARS-COV-2 Spike S1(B.1.640.2/IHU) Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Gln14-Arg683(E96Q, CNDPFLGV136-144del, R190S, D215H, R346S, N394S, Y449N, E484K, F490S, N501Y, D614G) [Accession | QHD43416.1].
The protein has a predicted MW of 74.88 kDa. Due to glycosylation, the protein migrates to 110-120 kDa based on Bis-Tris PAGE result.
> 95% as determined by Bis-Tris PAGE
> 95% as determined by HPLC
Less than 1EU per μg by the LAL method.
Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.
-20 to -80°C for 12 months as supplied from date of receipt.
-80°C for 3 months after reconstitution.
Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
SARS-COV-2 Spike S1 (B.1.640.2/IHU) on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.
The purity of SARS-COV-2 Spike S1 (B.1.640.2/IHU) is greater than 95% as determined by SEC-HPLC.
Immobilized SARS-COV-2 Spike S1 (B.1.640.2/IHU), His Tag at 2μg/ml (100μl/Well) on the plate. Dose response curve for Human ACE2, hFc Tag with the EC50 of 14.9ng/ml determined by ELISA.
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.
S1 protein; Spike protein S1; Spike,S1 protein; S glycoprotein Subunit1
(1)Belouzard S , Chu V C , Whittaker G R. Activation Of The Sars Coronavirus Spike Protein Via Sequential Proteolytic Cleavage At Two Distinct Sites[J]. Proceedings of the National Academy of Sciences of the United States of America, 2009, 106(14):5871-5876.
