SARS-COV-2 Spike S1, hFc Tag captured on CM5 Chip via Protein A can bind Human ACE2, His Tag with an affinity constant of 3.80 nM as determined in SPR assay (Biacore T200).
Immobilized Human ACE2, His Tag at 5ug/ml (100ul/well) on the plate. Dose response curve for SARS-COV-2 Spike S1, hFc Tag with the EC50 of 92.3ng/ml determined by ELISA (QC Test).
SARS-COV-2 Spike S1 on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.
Loaded SARS-COV-2 Spike S1, hFc Tag on ProA-Biosensor can bind Non-biotinylated Human ACE2, His Tag with an affinity constant of 0.66 nM as determined in BLI assay .
The purity of SARS-COV-2 Spike S1 is greater than 90% as determined by SEC-HPLC.
Supplier Page from Kactusbio Inc. for Non-biotinylated SARS-COV-2 Spike S1 Protein (COV-VM5S1)