Greater than 95% purity as determined by reducing SDS-PAGE.
SEC-HPLC:
2019-nCoV S-trimer Protein (C-6His) (Cat#E21-RA49-1) molecular mass was tested by SEC-HPLC about 670kDa and the purity was more than 85%.
Immobilized 2019-nCoV S-trimer (Cat# E21- RA49-1) at 2 μg/ml (100 μl/well) can bind Human ACE-2 (C-Fc) (Cat# E21-O5Y-2). The ED50 of Recombinant Human ACE-2 (C-Fc) (Cat# E21- O5Y-2) is 25.6 ng/ml.