产品描述：Recombinant COVID-19 S2 Protein is produced by mammalian expression system and the target gene encoding Ser686-Gln1208 is expressed with a Fc tag at the C-terminus.产品形式：Liquid in a 0.2 μm filtered solution of PBS, pH 7.4.相关名称：S2 protein; Spike glycoprotein Subunit2; S glycoprotein Subunit2; Spike protein S2; COVID-19 基因编号(人)： QHD43416.1; 纯度：Greater than 95% as determined by reducing SDS-PAGE.质量控制：Endotoxin: Less than 0.1 ng/µg (1 IEU/µg) as determined by LAL test.使用指导：Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/ml. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.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.