. Author manuscript; available in PMC: 2020 Mar 14.

Published in final edited form as: J Phys Chem B. 2019 Mar 5;123(10):2217–2234. doi: 10.1021/acs.jpcb.8b10946

Table 7:

Genetic toggle switch reactions and propensities

	reaction	propensity
1.	X → ∅	γ_X[X]
2.	∅ → X	$k_{0 X} + \frac{k_{1 X}}{1 + a_{y x} ({[Y]}^{n_{y x}})}$
3.	Y → ∅	γ_Y [Y ]
4.	∅ → Y	$k_{0 Y} + \frac{k_{1 Y}}{1 + a_{x y} ({[X]}^{n_{x y}})}$

The units for the parameters k_0X, k_1X, γ_X, k_0Y, k_1Y, γ_Y are sec⁻¹. The other parameters (dimensionless) are fixed at a_yx = 2.6 × 10⁻³, a_xy = 6.1 × 10⁻³, n_yx = 3, n_xy = 2.1