FIG. 5.
Effects of medium viscosity on the Vmax displayed by the H+-ATPase. Experiments were performed at different temperatures. The relative Vmax (Vmax0/Vmax) was plotted against the relative viscosity (η/η0). η0 is the viscosity of the solution in the absence of trehalose, and Vmax0 is the Vmax in the absence of trehalose. Temperatures were 20°C (○), 25°C (•), 30°C (□), 35°C (▪), and 40°C (▵). The lines are the result of linear regressions of the data.