Fig. 1: Schematic diagram of Salmonella flagellum.
From: Structure of the molecular bushing of the bacterial flagellar motor
The figure shows the central slice of the flagellum mostly in gray with only the rod and LP ring colored to highlight them. Component proteins forming each structural unit are written in brackets. The MS ring and C ring work as the rotor. The MotA/B complex acts as the stator, converting the energy of H+ influx into motor rotation. The distal (yellow) and proximal (green) rods together work as a drive shaft transmitting motor torque to the hook and filament. The L ring (purple) and P ring (cyan) together act as a bushing and support the high-speed rotation of the flagellar motor. OM, PG and IM are the outer membrane, peptidoglycan layer and inner membrane, respectively.
