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Lack of Correlation between Landscape Geometry and Transition Rates
Wen Jia1,2, Atchuta Srinivas Duddu3, Mohit Kumar Jolly3
1Center for Theoretical Biological Physics, Northeastern University, Boston, Massachusetts 02115, United States.
Abstract:
Biological cells can exist in a variety of distinct phenotypes, determined by the steady-state solutions of genetic networks governing their cell fate. A popular way of representing these states relies on the creation of landscape related to the relative occupation of these states. It is often assumed that this landscape offers direct information regarding the state-to-state transition rates, suggesting that these are related to barrier heights separating landscape minima. Here, we study a toggle triad network exhibiting multistability and directly demonstrate the lack of any direct correlation between properties of the landscape and corresponding transition rates.
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