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Cryo-EM structure of the small protein LCB3 bound to the RBD of the S protein (PDB id: 7JZM). LBC3 protein is shown as a brown ribbon with interacting residues represented as sticks colored according to the atom type. The RBD of the S protein is shown as a solvent-accessible surface that is colored according to the interpolated charge (red–negative, blue–positive, gray–neutral). Interactions are shown as dashed lines with the color scheme shown in Figure 1.
