SARS-CoV-2 (COVID-19) S protein RBD, Fc Tag (MALS verified) | SPD-C5255

SARS-CoV-2 (COVID-19) S protein RBD, Fc Tag (MALS verified) | SPD-C5255 | Acro Biosystems | SARS-CoV-2 Proteins

Synonym

Spike, S protein RBD, Spike glycoprotein Receptor-binding domain, S glycoprotein RBD, Spike protein RBD

Source

SARS-CoV-2 S protein RBD, Fc Tag (SPD-C5255) is expressed from human 293 cells (HEK293). It contains AA Arg 319 - Phe 541 (Accession # QHD43416.1).
Predicted N-terminus: Arg 319

Molecular Characterization

Online(Arg 319 - Phe 541) QHD43416.1Development Suggestion
This protein carries a human IgG1 Fc tag at the C-terminus.

The protein has a calculated MW of 51.5 kDa. The protein migrates as 60-65 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Endotoxin

Less than 1.0 EU per μg by the LAL method.

Purity

>95% as determined by SDS-PAGE.

>90% as determined by SEC-MALS.

Formulation

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.

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.