Figure 1
Sedimentation-velocity analysis of DrTS. The enzyme concentration was 0.1 mg ml−1 in 20 mM Tris–HCl pH 7.5, 100 mM NaCl. The three panels represent the optical traces (top), the residuals of the model fitting (middle) and the sedimentation-coefficient distribution (bottom). The ultracentrifugation analysis demonstrated that DrTS exists as a dimer in solution. |