Save Product
Product Details
Synonyms
Spike, S protein, Spike glycoprotein, S glycoprotein
Source
SARS-CoV-2 S protein, His Tag, Super stable trimer (SPN-C52H9) is expressed from human 293 cells (HEK293). It contains AA Val 16 - Pro 1213 (Accession # QHD43416.1). The recombinant protein is expressed from human 293 cells (HEK293) with T4 fibritin trimerization motif and a polyhistidine tag at the C-terminus. Proline substitutions (F817P, A892P, A899P, A942P, K986P, V987P) and alanine substitutions (R683A and R685A) are introduced to stabilize the trimeric prefusion state of SARS-CoV-2 S protein and abolish the furin cleavage site, respectively.
Predicted N-terminus: Val 16
Request for sequenceMolecular Characterization
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 138.0 kDa. The protein migrates as 150-200 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Endotoxin
Less than 1.0 EU per μg by the LAL method / rFC method.
Purity
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
Formulation
Lyophilized from 0.22 μm filtered solution in 0.1 M Sodium citrate, pH5.5 with trehalose as protectant.
Contact us for customized product form or formulation.
Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
ACRO Quality Management System
Customers Also Viewed
Performance Data
SDS-PAGE
SARS-CoV-2 S protein, His Tag, Super stable trimer on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
SEC-MALS
The purity of SARS-CoV-2 S protein, His Tag, Super stable trimer (Cat. No. SPN-C52H9) is more than 90% and the molecular weight of this protein is around 480-550 kDa verified by SEC-MALS.
Report
Electron Microscope
The well-folded trimeric particles of this product was verified by negative stain electron micrography.
Bioactivity-ELISA
Immobilized Human ACE2, Fc Tag (Cat. No. AC2-H5257) at 1 μg/mL (100 μL/well) can bind SARS-CoV-2 S protein, His Tag, Super stable trimer (Cat. No. SPN-C52H9) with a linear range of 1-39 ng/mL (QC tested).
Protocol
Immobilized Anti-SARS-CoV-2 RBD Neutralizing Antibody, Human IgG1 (Cat. No. SAD-S35) at 1 μg/mL (100 μL/well) can bind SARS-CoV-2 S protein, His Tag, Super stable trimer (Cat. No. SPN-C52H9) with a linear range of 0.2-3 ng/mL (Routinely tested).
Protocol
Immobilized SARS-CoV-2 S protein, His Tag, Super stable trimer (Cat. No. SPN-C52H9) at 1 μg/mL (100 μL/well) can bind Anti-SARS-CoV-2 RBD Neutralizing Antibody, Human IgG1 (Cat. No. SAD-S35) with a linear range of 0.1-6 ng/mL (Routinely tested).
Protocol
Immobilized SARS-CoV-2 S protein, His Tag, Super stable trimer (Cat. No. SPN-C52H9) at 2 μg/mL (100 μL/well) can bind Anti-SARS-CoV-2 Spike RBD Broadly Antibody, Mouse IgG1 (2G7F5) (Cat. No. SPD-Y68) with a linear range of 0.3-5 ng/mL (Routinely tested).
Protocol
Bioactivity-SPR
Human ACE2, Fc Tag (Cat. No. AC2-H5257) captured on CM5 chip via Anti-human IgG Fc antibodies surface can bind SARS-CoV-2 S protein, His Tag, Super stable trimer (Cat. No. SPN-C52H9) with an affinity constant of 40.9 nM as determined in a SPR assay (Biacore T200) (Routinely tested).
Protocol
Customer Reviews Writing Reviews
Background
Recent Advances
Drug Development Progress- English Name：
Coronavirus spike glycoprotein
- Category：
- Approved Drugs：
15 Details
- Drugs in Clinical Trials：
88 Details
- Highest Development Stage：
Approved
Contact Us
メールアドレス
order.jp@acrobiosystems.com
お問い合わせ
グローバル：+1 800-810-0816(Toll Free)
Drug Candidate Licensing
