Structure of the torque ring of the flagellar motor and the molecular basis for rotational switching

@article{Lee2010StructureOT,
  title={Structure of the torque ring of the flagellar motor and the molecular basis for rotational switching},
  author={Lawrence K. Lee and Michael A. Ginsburg and Claudia Crovace and Mhairi Donohoe and Daniela Stock},
  journal={Nature},
  year={2010},
  volume={466},
  pages={996-1000}
}
The flagellar motor drives the rotation of flagellar filaments at hundreds of revolutions per second, efficiently propelling bacteria through viscous media. The motor uses the potential energy from an electrochemical gradient of cations across the cytoplasmic membrane to generate torque. A rapid switch from anticlockwise to clockwise rotation determines whether a bacterium runs smoothly forward or tumbles to change its trajectory. A protein called FliG forms a ring in the rotor of the flagellar… CONTINUE READING