Recombinant Protein;25UG;Biotinylated SARS-CoV-2 S protein RBD, Mouse IgG1 Fc,Avitag™(MALS verified) (SPD-C82Aa) is expressed from human 293 cells (HEK293). It contains AA Arg 319 - Lys 537 (Accession # QHD43416.1).;This protein carries a mouse IgG1 Fc tag at the C-terminus, followed by an Avi tag (Avitag™). The protein has a calculated MW of 52.5 kDa. The protein migrates as 55-60 kDa under reducing (R) condition (SDS-PAGE) due to Glycosylation.;Immobilized Human ACE2, Fc Tag (Cat. No. AC2-H5257) at 1 μg/mL (100 μL/well) can bind Biotinylated SARS-CoV-2 S protein RBD, Mouse IgG1 Fc,Avitag™(MALS verified) (Cat. No. SPD-C82Aa) with a linear range of 0.2-10 ng/mL (QC tested).;Immobilized Biotinylated SARS-CoV-2 S protein RBD, Mouse IgG1 Fc,Avitag™(MALS verified) (Cat. No. SPD-C82Aa) at 1 μg/mL (100 μL/well) on streptavidin precoated (0.5μg/well) plate,