Recombinant Protein;100UG;SARS-CoV-2 S1 protein (D614G), His Tag (S1N-C5256) is expressed from human 293 cells (HEK293). It contains AA Val 16 - Arg 685 (Accession # QHD43416.1 (D614G)).;This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 76.8 kDa. The protein migrates as 100-120 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.;Immobilized SARS-CoV-2 S1 protein (D614G), His Tag (Cat. No. S1N-C5256) at 2 μg/mL (100 μL/well) can bind Human ACE2, Fc Tag (Cat. No. AC2-H5257) with a linear range of 0.2-3 ng/mL (QC tested).;Immobilized SARS-CoV-2 S1 protein (D614G), His Tag (Cat. No. S1N-C5256) at 2 μg/mL (100 μL/well) can bind Anti-SARS-CoV-2 Neutralizing Antibody, Human IgG1 (Cat. No. SAD-S35) with a linear range of 0.2-3 ng/mL (Routinely tested).