Figure 3.
Kinetic analysis of compound 15. (A) Steady-state competition assay with varying concentrations of dihydrofolate: 5 μM, 10 μM, 25 μM, 50 μM, and 100 μM. Data fit to a hyperbolic equation. (B) Lineweaver-Burk plot for data in (A). For all graphs, data points with circle (⬤) denote the reaction with no inhibitor, data points with square (⬛) denote the reaction with 100 μM compound 15, and data points with diamond (◆) denote the reaction with 250 μM compound 15. Steady-state competition assay with respect to 100 µM NADPH at concentrations of 0 µM, 100 µM and 250 µM of compound 15 indicated noncompetitive inhibition (data not shown).