Figure 2. Electron density map of the mink ACE2-free and mvACE2 bound SARS-CoV-2 mink S glycoprotein. Diagram illustrating the density map of ACE2-free mink S glycoprotein [PDB: 8T21], one mvACE2-bound mink S glycoprotein [PDB: 8T22 and 8TAZ], and two mvACE2-bound mink S glycoproteins [PDB: 8T20]. The relative percent sample of each population is 13.8% (A), 16.0% (B), 14.3% (C), and 55.8% (D). The angle between the long axes of RBD and the horizontal plane is also shown below each species.