Fig. 2.

Residual enzyme activity in the presence of 100 µM compound. The open square at the left edge is the uninhibited enzyme activity in the DMSO vehicle (n = 18). Closed circles show the residual enzyme activities with the standard error at a 100 µM compound concentration (n = 3). Compound 2 is the rightmost point indicated by three asterisks. The asterisks indicate significantly decreased enzyme activities in comparison with the vehicle; ***P < 0.001, **P < 0.01, *P < 0.05.