Sequence Diagram and Structure of β-CoV-B Spike Protein
(A) Sequence diagram of β-CoV-B spike (S) protein.
(B) Structure diagram of S protein position on coronavirus surface and its crystal structure (modified from PDB: 6VXX).
RBD, receptor-binding domain; RBM, receptor binding motif; NTD, N-terminal domain; HR1, heptad repeat 1; HR2, heptad repeat 2; FP, fusion peptide; TM, transmembrane domain; CP, cytoplasmic region. Illustration created by the authors using http://www.biorender.com.