Name: SARS-COV-2 Spike RBD Protein (COV-VM2BD)
Brand: KactusBio
SKU: COV-VM2BD-100UG
Price: 330.0 USD
Availability: InStock

Express System: HEK293
Product Tag: C-hFc
Purity: > 95% as determined by Bis-Tris PAGE;> 95% as determined by HPLC
Activity: Immobilized Cynomolgus ACE2, His Tag at 2ug/ml (100ul/well) on the plate. Dose response curve for SARS-COV-2 Spike RBD, hFc Tag with the EC50 of 5.2ng/ml determined by ELISA. See testing image for detail.
Amino Acid Range: Arg319-Phe541

Catalog #COV-VM2BD

Size

100UG

500UG

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Product Description	Recombinant SARS-COV-2 Spike RBD Protein is expressed from HEK293 with hFc tag at the C-Terminus.It contains Arg319-Phe541.
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 / Antibody discovery

Protein	Spike RBD
Synonyms	S protein RBD; S glycoprotein RBD; Spike protein RBD
Accession	QHD43416.1
Species	SARS-COV-2
Biotinylated	no
Amino Acid Range	Arg319-Phe541
Molecular Weight	The protein has a predicted MW of 50.7 kDa. Due to glycosylation, the protein migrates to 55-70 kDa based on Bis-Tris PAGE result.
Activity	Immobilized Cynomolgus ACE2, His Tag at 2ug/ml (100ul/well) on the plate. Dose response curve for SARS-COV-2 Spike RBD, hFc Tag with the EC50 of 5.2ng/ml determined by ELISA. See testing image for detail.
Product Tag	C-hFc
Expression 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	-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.

	Immobilized Cynomolgus ACE2, His Tag at 2ug/ml (100ul/well) on the plate. Dose response curve for SARS-COV-2 Spike RBD, hFc Tag with the EC50 of 5.2ng/ml determined by ELISA.
	SARS-COV-2 Spike RBD on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.
	The purity of SARS-COV-2 Spike RBD is greater than 95% as determined by SEC-HPLC.