Atlas One · Host Biology · Scale 03 — Molecular

SARS-CoV-2 Spike

SARS-CoV-2 Spike (class I fusogen; 1273 aa; homotrimer; furin site PRRAR absent in SARS-CoV-1) binds ACE2 (Kd ~15 nM) via RBD; 2P (K986P/V987P) proline stabilization locks prefusion conformation for mRNA vaccines; Omicron BA.1 carries 37 Spike mutations driving antibody escape.

Also known as: SARS-CoV-2 Spike, Spike protein, SARS-CoV-2 S protein, Spike glycoprotein, prefusion Spike, S1 RBD, RBD, 2P Spike, coronavirus fusion protein, mRNA vaccine antigen

Scale 03 — MolecularScale
draftStatus
2026-06-08Last Reviewed
This is an auto-generated stub page built from atlas entry frontmatter. A richer hand-crafted page is planned. See the atlas source for the full entry including detailed body sections.
sars-cov-2-spike

SARS-CoV-2 Spike

SARS-CoV-2 Spike (class I fusogen; 1273 aa; homotrimer; furin site PRRAR absent in SARS-CoV-1) binds ACE2 (Kd ~15 nM) via RBD; 2P (K986P/V987P) proline stabilization locks prefusion conformation for mRNA vaccines; Omicron BA.1 carries 37 Spike mutations driving antibody escape.