727143.fig.003a
(a)
727143.fig.003b
(b)
Figure 3: Lineweaver-Burk plots showing the reciprocal of the velocity (1/V) of recombinant human aldose reductase versus the reciprocal of substrate concentration (1/S) with dL-glyceraldehyde as the substrate concentration from 0.1 to 1 mM hirsutrin (a), 3′-methoxyhirsutrin (b).