Figure 5.
Binding of AF, RoF, SAM and SAH to RosA. Calorimetric titrations of RosA with AF (A), RoF (B), SAM (C) and SAH (D) were performed in 50 mm Tris/HCl buffer, pH 8.0, containing 100 mm NaCl at 25 °C using a VP‐ITC system (MicroCal). The dissociation constants for binding of AF, RoF, SAM and SAH to RosA were 10 ± 1, 0.8 ± 0.05, 22 ± 2 and 2 ± 0.1 μm, respectively (three independent measurements for each ligand). Data were analysed by non‐linear least‐squares fitting using origin version 7.0 (MicroCal).