产品描述：Recombinant COVID-19 S1 Protein C-terminal domain is produced by mammalian expression system with a 8His; Flag tag at the N-terminus.产品形式：Liquid in a 0.2 μm filtered solution of PBS, pH 7.4.相关名称：S1 protein; 2019-nCoV S1 protein; coronavirus S1 Protein; cov S1 Protein 基因编号(人)： QHD43416.1; 纯度：Greater than 95% as determined by reducing SDS-PAGE.使用指导：Please minimize freeze-thaw cycles.质量控制：Endotoxin: Less than 0.1 ng/µg (1 IEU/µg) as determined by LAL test.储存效期：Store it at -20°C to -80°C for one year. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.