Fig. 1. The coronavirus with the Spike trimeric glycoprotein projections from the surface.
a The schematic portion of the Figure (lower left) shows the structural E and M structural proteins of the membrane, the protruding trimeric structural protein, the structural protein N that binds the RN, and the RNA genome. b the 3-D structure of the S-protein with the receptor binding domain (RBD) with the domain that binds the ACE 2 receptor.