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Dimensionless variables used in Eq. (29). s0 is a characteristic scale associated to the average number of molecules of transcription factor, X1, and E is the average number of binding sites in the promoter of the self-activating gene. We further assume that S ≫ E.
| Rescaled variables | Dimensionless parameters |
|---|---|
| τ = k3ESt | ϵ = E/S, R = /(k3ES2) |
| q1 = Q1/S | κ1 = k1/(k3S2) |
| q2 = Q2/E | κ2 = k2/(k3ES) |
| q3 = Q3/E | κ4 = k4/(k3S2) |
