Comparisons of the predicted parameters of Hill function for gene induction mediated by two competing factors (A+R).

(a)PsAct: The transcriptionally active promoter is defined by only activator-bound state.(b)PsAct+PsUnb: The transcriptionally active promoter is defined by both unbound and activator-bound states that are the summation of constitutively and fully expressed gene.(c)Our method reported in this paper.(d)Addition (1.6+1.8) or multiplication (1.6×1.8) as reported in Rossi et al. (2000).(e)An experimentally observed value reported in Rossi et al. (2000).*Standard error.