Fig. 2.

Lineweaver-Burk (A) and Dixon plots (B) for the inhibition of mushroom tyrosinase by BID3 using l-DOPA as the substrate. The effects are shown in the presence of different concentrations of BID3 [0 µM (closed circle), 1 µM (open circle), 2 µM (closed triangle), and 4 µM (open triangle)] and in the presence of different concentrations of substrate [0.125 mM (closed circle), 0.25 mM (open circle), 0.5 mM (closed triangle), and 1 mM (open triangle)] of l-DOPA. Error bars indicate the standard error of the mean (SEM).