Fig 3. The ATPase complex adopts a different spin rotation in respect to the collar and the stators.

(A) Sections of four class averages at the level of the 16 circumferential stator densities. Note that the stator densities exhibit very similar patterns on spin rotation. (B) Sections of the same class averages shown in panel A but taken at the level of the FliI/FliH assembly and the C-ring. The sections show the ATPase complex in slightly different orientations. There are different rotations in classes 03, 05, and 08 relative to class 00. (C) Cytoplasmic views of the ATPase complexes from the four class averages, corresponding to the cross-sections in panel B, respectively. (D) CCC plotting of the class averages. Note that the peak of the CCC for class 00 happens at 0° (without any in-plane rotation). The CCC peak for class 03 is located at approximately 7°; the CCC peak for class 05 is at approximately 13°, whereas the CCC peak for class 08 is at 20°. CCC, cross correlation coefficient.