Recombinant SARS Spike S1-Fc-Avi Protein
$350.00 – $2,300.00
Syd Labs Recombinant SARS Spike S1-Fc-Avi Protein BP003073, cheapest recombinant SARS-CoV-2 S protein S1 subunit (Gln14-Arg683) with Fc tag expressed in HEK 293 cells. Activity: Immobilized rhACE2. Dose response curve for the recombinant 2019-nCoV S protein S1 subunit with the EC50 of 0.1 ug/ml determined by ELISA.
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Catalog No. | BP003073 |
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Product Name | Recombinant SARS Spike S1-Fc-Avi Protein |
Supplier Name | Syd Labs, Inc. |
Brand Name | Syd Labs |
Synonyms | 2019-nCoV S Protein S1 Subunit, COVID-19 Virus Spike Protein S1 Subunit |
Source | Recombinant SARS-CoV-2 Spike S1 protein (S protein S1 subunit, Gln14-Arg683) was expressed in mammalian cells with a Fc tag and Avi at the C-terminus. Accession: QHD43416.1 |
Formulation | The recombinant SARS-CoV-2 Spike S1-Fc-Avi protein was lyophilized from 0.22 um filtered solution in 20 mM PB (pH 7.4). Normally 5% trehalose is added as protectant before lyophilization. |
Purity | > 95% by PAGE under reduced condition, and SEC-HPLC. |
Endotoxin | Less than 1 EU per ug by the LAL method. |
Shipping | The recombinant SARS-CoV-2 Spike S1-Fc-Avi protein is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
Note | Recombinant SARS-CoV-2 S protein S1 subunit-His protein, biotinylated His-tag and Fc-fused S protein S1 subunits, SARS-CoV-2 S protein S1 antibodies, immunoassay kits, custom antibody and kit development services are available. |
Order Offline | Phone: 1-617-401-8149Fax: 1-617-606-5019Email: message@sydlabs.comOr leave a message with a formal purchaseorder (PO) Or credit card. |
Description
BP003073: Recombinant SARS Spike S1-Fc-Avi Protein
Background
Source: Recombinant SARS-CoV-2 Spike S1 protein (S protein S1 subunit, Gln14-Arg683) was expressed in mammalian cells with a Fc tag and Avi at the C-terminus.
Accession: QHD43416.1
Predicted molecular mass: 102.6 kDa. Due to glycosylation, the recombinant SARS-CoV-2 S protein S1 subunit migrates to 130-140 kDa based on the Bis-Tris PAGE result.
Endotoxin: Less than 1 EU per ug by the LAL method.
Activity: Immobilized recombinant human ACE2, His Tag at 0.5 ug/ml (100 ul/well). Dose response curve for the recombinant SARS-CoV-2 Spike S1-Fc-Avi protein with the EC50 of 0.1 ug/ml determined by ELISA.
Formulation: The recombinant SARS-CoV-2 Spike S1-Fc-Avi protein was lyophilized from 0.22 um filtered solution in 20 mM PB (pH 7.4). Normally 5% trehalose is added as protectant before lyophilization.
Purity: > 95% by PAGE under reduced condition, and SEC-HPLC.
Shipping: The recombinant SARS-CoV-2 Spike S1-Fc-Avi protein is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage:
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70°C as supplied.
1 month, 2 to 8°C under sterile conditions after reconstitution.
3 months, -20 to -70°C under sterile conditions after reconstitution.
There are two subunits, S1 and S2, in the SARS-CoV-2 spike (S) glycoprotein which plays the most important roles in viral attachment, fusion and entry, and serves as a target for development of virus entry inhibitors, neutralizing antibodies, and vaccines. The S1 subunit, the N-terminal 14–685 amino acids of S protein, contains N-terminal domain (NTD), receptor binding domain (RBD), and receptor binding motif (RBM). The SARS-CoV and SARS-CoV-2 S proteins mediate viral entry into host cells by binding to a host receptor, angiotensin-converting enzyme 2 (ACE2), through the receptor-binding domain (RBD) in the S1 subunit, and then fusing the viral and host membranes through the S2 subunit.
Both His-tagged and Fc-fused recombinant SARS-CoV-2 S protein S1 subunits are available with an Avi site, which is for biotinylation. The biotinylated recombinant S protein S1 subunits are also avaible. Please ask for a quote if you need S protein S1 subunit mutants or a S protein S1 subunit with different modification or components.
To check more Syd Labs SARS-CoV-2 (2019-nCoV) Antigen and Antibody Reagents and Discovery Services
Please remember our product information: Recombinant SARS Spike S1-Fc-Avi Protein: BP003073 Syd Labs
Additional information
Ship from Country | USA |
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Size | 1 mg, 100 ug |