Name: SARS-COV-2 Spike S Trimer Protein (COV-VM2SS)
Brand: KactusBio
SKU: COV-VM2SS-100UG
Price: 375.0 USD
Availability: InStock

SARS-COV-2 Spike S Trimer Protein (COV-VM2SS)

Express System: HEK293
Product Tag: C-monomeric hFc
Purity: > 95% as determined by Bis-Tris PAGE;> 95% as determined by HPLC
Activity: Immobilized Human ACE2, His Tag at 5ug/ml (100ul/well) on the plate. Dose response curve for SARS-COV-2 Spike S (Trimer) , hFc Tag with the EC50 of 0.22ug/ml determined by ELISA. See testing image for detail.
Amino Acid Range: Val16-Glu1188

Catalog #COV-VM2SS

Size

100UG

500UG

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Product Description	Recombinant SARS-COV-2 Spike S Trimer Protein is expressed from HEK293 with monomeric hFc tag at the C-Terminus.It contains Val16-Glu1188.
Product Background	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.
Product Category	Recombinant Protein

Target	Spike S Trimer
Synonyms	S protein; Spike glycoprotein; S glycoprotein; COVID-19
Accession	QHD43416.1
Species	SARS-COV-2
Biotinylated	no
Amino Acid Range	Val16-Glu1188
Molecular Weight	The protein has a predicted MW of 158.3 kDa. Due to glycosylation, the protein migrates to 230-250 kDa based on Bis-Tris PAGE result.
Activity	Immobilized Human ACE2, His Tag at 5ug/ml (100ul/well) on the plate. Dose response curve for SARS-COV-2 Spike S (Trimer) , hFc Tag with the EC50 of 0.22ug/ml determined by ELISA. See testing image for detail.
Product Tag	C-monomeric hFc
Express System	HEK293
Purity	> 95% as determined by Bis-Tris PAGE;> 95% as determined by HPLC
Endotoxin	Less than 1EU per ug by the LAL method.

Form	Lyophilized
Shipping	Shipped at ambient temperature.
Formulation	Lyophilized from 0.22um filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution	Centrifuge the tube before opening. Reconstituting to a concentration more than 100 ug/ml is recommended. Dissolve the lyophilized protein in distilled water.
Stability And Storage	Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

	Immobilized Human ACE2, His Tag at 5ug/ml (100ul/well) on the plate. Dose response curve for SARS-COV-2 Spike S (Trimer) , hFc Tag with the EC50 of 0.22ug/ml determined by ELISA.
	SARS-COV-2 Spike S (Trimer) on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.
	The purity of SARS-COV-2 Spike S (Trimer) is greater than 95% as determined by SEC-HPLC.

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