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Recombinant HCoV-OC43 S1 protein, His Tag, 4x250µg  

Recombinant HCoV-OC43 S1 protein, His Tag, 4x250µg

Recombinant HCoV-OC43 S1 protein, AA Ala 14 - Gly 758, expressed from human 293 cells (HEK293), His-Tag

Synonyms: Recombinant, protein, Spike, S1 protein, Spike glycoprotein Subunit1, S glycoprotein Subunit1, Spike protein S1,  COVID-19

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Availability: within 7 days

2 540,00 €

It's been reported that Coronavirus 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.

Recombinant HCoV-OC43 S1 protein, His Tag (SIN-V52H5) is expressed from human 293 cells (HEK293). It contains AA Ala 14 - Gly 758 (Accession # P36334-1). Predicted N-terminus: Ala 14

Molecular Characterization
This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 85.1 kDa. The protein migrates as 110-116 kDa under reducing (R) condition (SDS-PAGE) due to Glycosylation.

Less than 1.0 EU per μg by the LAL method.

>90% as determined by SDS-PAGE.

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally Trehalose are added as protectants before lyophilization.

See Certificate of Analysis for reconstitution instructions and specific concentrations.

Please refer to product data sheet.

Avoid repeated freeze-thaw cycles.
-20°C to -70°C for 12 months in lyophilized state;-70°C for 3 months under sterile conditions after reconstitution.


(1) Wan Y, et al. J Virol. 2020. pii: JVI.00127-20.
(2) Benvenuto D, et al. J Med Virol. 2020.
(3) Chang CY, et al. AMB Express. 2020. 10(1):20.

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