FIG 5.

The collar facilitates the assembly of 16 stator complexes in a highly curved membrane. (A to D) 3D surface view of the whole collar complex in WT B. burgdorferi. The diameter and height of the collar are indicated. The curvature of the IM is clearly resolved in the asymmetric reconstruction of the motor structure (C and D). Sixteen stator units embed on the IM and are surrounded by the collar proteins. FlcA directly interacts with the stator units. The color scheme is the same as in Fig. 4.