FIGURE 3.
Binding of XEEL to carbohydrates, characterized using SPR. A, SPR sensorgrams of XEELCRD binding to immobilized carbohydrates. B, equilibrium binding analysis of XEELCRD to immobilized β-Galf. These data were used to determine the apparent affinity of XEELCRD for β-Galf. C, glycerol was assayed for its ability to inhibit XEELCRD binding to β-Galf. These data were used to determine the IC50 of glycerol. This experiment was reproduced with an independently purified protein sample.