Fig. 2From: A frame-shifted gene, which rescued its function by non-natural start codons and its application in constructing synthetic gene circuitsUltrasensitivity of NOT gates with frame-shifted cI. Normalized fluorescence from EGFP expression of various NOT gate constructs using frame-shifted cI as a function of various aTc concentrations. The data were fitted (solid line) with a Hill function (Eq. (1)). The Hill coefficient ‘n’ values were shown corresponding to each NOT gate constructsBack to article page