• SAB5700599
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Recombinant 2019-nCoV Spike RBD Protein with mFc tag

2019-nCoV RBD Protein, NCP-CoV RBD Protein, S glycoprotein Subunit1 RBD Protein, S1-RBD protein, novel coronavirus RBD Protein


expressed in HEK 293 cells

Quality Level


>95% (SDS-PAGE)


lyophilized powder

mol wt

50.8 kDa


<0.1 EU/μg protein (LAL test)

UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

SARS virus ... S(43740568)

General description

Recombinant SARS-COV-2(2019-nCoV) Spike RBD Protein is produced by HEK293 cells expression system. The target protein is expressed with sequence (Arg319-Phe541) of SARS-COV-2(2019-nCoV) Spike RBD (Accession #YP_009724390.1) fused with a mFc tag at the C-terminus.


100 μg

Biochem/physiol Actions

Measured by its binding ability in a functional ELISA. Immobilized Recombinant Human ACE2 Protein at 2μg/mL (100 μL/well) can bind Recombinant SARS-COV-2 Spike RBD-mFc Protein,the EC50 of Recombinant SARS-COV-2 Spike RBD-mFc Protein is 2.58 ng/mL.


For lyophilized protein : Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water.

Storage and Stability

Store the lyophilized protein at -20°C to -80°C for long term. After reconstitution, the protein solution is stable at -20°C for 3 months, at 2-8 °C for up to 1 week. This product is stable at ≤ -70°C for up to 6 months from the date of receipt. For optimal storage, aliquot into smaller quantities after centrifugation and store at recommended temperature.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Data presented is the available current product information and provided as-is. These products have not been tested or verified in any additional applications, sample types, including any clinical use. Experimental conditions must be empirically derived by the user. Our Antibody Guarantee only covers tested applications stated herein and conditions presented in our product information and is not extended to publications.

Storage Class Code

13 - Non Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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