Fig. 2: Cryo-EM structures of the ectodomain of SARS-CoV-2 spike trimer in complex with Clone 2 or Clone 6 Fab and Structural comparisons.

a, b Cryo-EM structures of the ectodomain of SARS-CoV-2 spike trimer in complex with Clone 2 (a) or Clone 6 (b). Each Fab molecule is shown as ribbons in different colors, spike RBD is shown as dark gray ribbons, with the rest of spike trimer shown as gray surface. The particle distribution of each S trimer conformation is shown correspondingly.