Binding of Cbp1, Cbp1ΔN, Cbp1ΔC, and ChiD to polysaccharides. Black bars, α-chitin; striped bars, β-chitin; gray bars, Avicel; white bars, chitosan. The reaction mixtures were incubated at 27°C for 1 h. Bovine serum albumin (BSA; 5 μg) was used as a control. Data are the averages of three independent experiments.