Fig. 3
From: Use of transcriptomic data for extending a model of the AppA/PpsR system in Rhodobacter sphaeroides
Schematics for the PpsR-DNA binding possibilities and estimation of the Hill coefficient for the oxidised PpsR. a The arrow and line with bar end represent activation and repression, respectively. The solid thick line with arrow on top denotes the expression of PS genes. Abbreviations: red: reduced form, ox: oxidised form. b Estimating the Hill coefficient for the binding of oxidised PpsR to a DNA fragment containing the puc promoter. Here, we fit the data obtained from binding isotherms for oxidised PpsR published elsewhere [17]. We use a general Hill function of the form Axn/(Kd n + xn) to fit the data