Reconstructing the arabinose dataset. Model predictions for the arabinose dataset, using the posterior parameter values inferred with MCMC. The fractional value of the feedforward element z (target gene AB in the arabinose model) is shown as a function of time. Red dots denote the original data as provided in , dashed black lines the 95% credible interval, and the average solution is shown in green. The first row shows the ON steps, while OFF steps are given in the second row.