Figure 2.

Competitive binding assays showing the ability of various sugars (isomaltose, isomaltotriose, isomaltotetraose and dextran B512) to compete with Sephadex G-100 for binding to aptamer D8. The aptamer was incubated with Sephadex G-100 in the presence of various sugar concentrations ranging from 0.1 to 20 mM. The ratios of the percentage of aptamer binding to Sephadex in the presence of various competitor concentrations over binding in the absence of competitors are shown in the graph.