It is unclear how bacterial cells adapt the reversible switching of flagellar motor rotation to environments of different viscosities. Here, Antani et al. show that flagellar mechanosensors allosterically control the motor’s binding affinity for the chemotaxis response regulator, CheY-P, to adapt flagellar switching over varying viscous loads.
- Jyot D. Antani
- Rachit Gupta
- Pushkar P. Lele
