Fig. 5: The C21 ring forming the crown of the nucleocapsid.

A, B Isosurface representation (in two 90° related views) of the 3D map of the C21 crown of the apical cap colored by the proteins composing it (color code below panel A). C Two 90° related views of the proteins composing an asymmetry unit of the C21 crown. D Zoomed view of the interaction at the N-terminal level of Ac66. The N-terminus in each asymmetric unit (labeled *) interacts with each other. The dotted circle highlights the interaction between the N-terminus of different asymmetric units (aui and aui+1).