Bithionol and hexachlorophene affect the Km for ATP in TAg. Kinetic parameters (Km and Vmax) were determined by Lineweaver-Burk analysis of TAg in the presence of 150 μM ADP or 3 μM bithionol or hexachlorophene over a range of ATP concentrations, as shown in Figure 4. ANCOVA was used to determine the p values for each pair-wise comparison.