Fig. (5) Inhibition curves of the three compounds that were able to inhibit GLA. Inhibition curves for α-glucosidase and glucocerebrosidase are also shown. (a) Lansoprazole’s potency (IC₅₀ = 6.4 µM) was about 19 times greater against GLA than GC. It did not inhibit GAA. (b) Merbromin was more potent against GC than GLA. It slightly inhibited GAA. (c) Phenylmercuric acetate was significantly more potent against GC than GLA. It did not inhibit GAA.