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Updated: Jun 19, 2026

Biophysical Characterization of Flagellar Motor Functions
Published on: January 18, 2017
The steady-state phase distribution of the motor switch complex model of Halobacterium salinarum
Ricardo C H del Rosario1, Francine Diener, Marc Diener
1Max Planck Institute of Biochemistry, Department of Membrane Biochemistry, 82152 Martinsried, Germany.
Abstract:
Steady-state analysis is performed on the kinetic model for the switch complex of the flagellar motor of Halobacterium salinarum (Nutsch et al.). The existence and uniqueness of a positive steady-state of the system is established and it is demonstrated why the steady-state is centered around the competent phase, a state of the motor in which it is able to respond to light stimuli. It is also demonstrated why the steady-state shifts to the refractory phase when the steady-state value of the response regulator CheYP increases. This work is one aspect of modeling in systems biology wherein the mathematical properties of a model are established.
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