Figure 2.
Cartoons of the flagellar motor derived from (a) Salmonella, (b) B. subtilis, (c) V. alginolyticus, (d) C. jejuni and (e) B. burgdorferi. The schematic diagrams of the Salmonella, V. alginolytics, C. jejuni and B. burgdorfer flagellar motors are shown based on their in situ structures whereas the B. subtilis motor is drawn based on purified basal body structure with some speculations. The common architectures are indicated by following colors: MS ring, green; C ring, light green; export apparatus, orange; rod, cyan; hook, navy; LP ring, purple; stator, wine red. The position of the stator unit in the Salmonella and B. subtilis motors remains unclear. The additional structures are showed in following colors: H-ring, yellow; T-ring, brown; O-ring, dark gray; basal disk, blue; median disk, light blue; proximal disk, red; P-collar, pink. IM, inner membrane; PG, peptidoglycan layer; OM, outer membrane.