Name SARS-CoV-2 S1 Protein of the South Africa Variant B.1.351 Description C-terminal his-tagged recombinant SARS-CoV-2 S1 protein (aa 16-682) of the South Africa variant B.1.351 "Beta" (also named 20H/501.V2)(GISAID Accession No. EPI_ISL_736980) Source HEK-293 expressed recombinant SARS-CoV-2 S1 protein of the South Africa variant B.1.351 Application Western blot standard, functional ACE2 binding ELISA, immunogen, etc. Purity > 95% (SDS-PAGE) Endotoxin <0.01 EU per µg of purified protein by LAL test Size 50 µg |