COV-VM1SY-100μg / 询价
COV-VM1SY-500μg / 询价
COV-VM1SY-500μgx2 / 询价
SARS-COV-2 Spike S1 (N501Y) Protein
Recombinant SARS-COV-2 Spike S1 (N501Y) Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Val16-Arg685 [Accession | YP_009724390.1].
The protein has a predicted MW of 76 kDa. Due to glycosylation, the protein migrates to 115-140 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 (N501Y) on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.
The purity of SARS-COV-2 Spike S1 (N501Y) is greater than 95% as determined by SEC-HPLC.
Immobilized SARS-COV-2 Spike S1 (N501Y) , His Tag at 0.5μg/ml (100μl/Well) on the plate. Dose response curve for Human ACE2, hFc Tag with the EC50 of 66.2ng/ml determined by ELISA.
A new variant of SARS-CoV-2 is spreading in the UK and is rapidly becoming a global threat.It is characterised by multiple mutations in the spike protein. Among them, N501Y is of major concern because it involves one of the six key amino acid residues determining a tight interaction of the SARS-CoV-2 receptor-binding domain (RBD) with its cellular receptor angiotensin-converting enzyme 2 (ACE2).
S1 protein; Spike protein S1; Spike,S1 protein; S glycoprotein Subunit1
(1)Kemp SA, Collier DA, Datir R, Ferreira I, Gayed S, Jahun A, Hosmillo M, Rees-Spear C, Mlcochova P, Lumb IU, Roberts DJ, Chandra A, Temperton N, Sharrocks K, Blane E, Briggs J, van Gils MJ, Smith K, Bradley JR, Smith C, Doffinger R, Ceron-Gutierrez L, Barcenas-Morales G, Pollock DD, Goldstein RA, Smielewska A, Skittrall JP, Gouliouris T, Goodfellow IG, Gkrania-Klotsas E, Illingworth C, McCoy LE, Gupta RK. Neutralising antibodies in Spike mediated SARS-CoV-2 adaptation. medRxiv [Preprint]. 2020 Dec 29:2020.12.05.20241927. doi: 10.1101/2020.12.05.20241927. PMID: 33398302; PMCID: PMC7781345.
