4 ms·
No. From that link "...two proline substitutions (K986P and V987P, designated "2P") that cause the spike to adopt a prefusion-stabilized conformation reducing
by yborg 5y ago
No.
From that link "...two proline substitutions (K986P and V987P, designated "2P") that cause the spike to adopt a prefusion-stabilized conformation reducing the membrane fusion ability, increasing expression and stimulating neutralizing antibodies..."
It's a modified version of the spike protein designed as an antibody target, not to identically replicate the spike protein function.