VIRAL PROTEIN/IMMUNE SYSTEM CRYO-EM STRUCTURE OF SARS-COV-2 2P S ECTODOMAIN BOUND DOMAIN-SWAPPED ANTIBODY 2G12 FROM MASKED 3D REFINEMENT: 0 - A ASP 936 O VS M ARG 99 NE Distance: 4.844693 - Hydrogen Bonds, 1 - A ASP 936 O VS M ARG 99 NH2 Distance: 4.420677 - Hydrogen Bonds, 2 - A ASP 936 CB VS M ARG 99 CG Distance: 5.080702 - Hydrophobic, 3 - A ASP 936 OD2 VS M ARG 99 NE Distance: 6.373179 - Attractive, 4 - A ASP 936 OD2 VS M ARG 99 CZ Distance: 6.837174 - Attractive, 5 - A ASP 936 OD2 VS M ARG 99 NH1 Distance: 6.896123 - Attractive, 6 - A SER 937 O VS M ARG 99 NH2 Distance: 4.864679 - Hydrogen Bonds, 7 - A SER 940 OG VS M ARG 99 NE Distance: 4.050655 - Hydrogen Bonds, 8 - A SER 940 OG VS M ARG 99 NH2 Distance: 3.063242 - Hydrogen Bonds, 9 - A THR 941 OG1 VS M ARG 99 NH2 Distance: 3.277460 - Hydrogen Bonds,