Fig. 1: Structure of FliDcj.

a The cryo-EM map of FliDcj, segmented and colored by subunit. A side view of the full complex map is shown on the left, and a top view of the head domain map is shown on the right. Domains are indicated with labeling lines. b Cartoon representation of the full-length FliDcj monomer, colored according to domain organization. The purple dotted circle indicates the position of the D4 domain. c Cartoon representation of the FliDcj pentamer, corresponding to the intact cap complex, with respective measurements. In our model the D4 domain is not visible as it was not built in. For reference it should be localized as indicated in panel (b). Side view (left) and top view (right) are shown and color coded as in (a).