SARS-CoV-2 (2019-nCoV) Spike S1+S2 ECD (HV69-70 deletion, Y144 deletion, N501Y, A570D, D614G, P681H, T716I, S982A, D1118H) -His Recombinant Protein

Greater than 85% by SDS-PAGE

Lyophilized powder

Lyophilized from sterile 20 mM Tris, 300 mM NaCl, 10 % glycerol, pH 8.0.

Store it under sterile conditions at -20°C to -80°C. Avoid repeated freeze-thaw cycles.