FIGURE 5.

Surface representation of the tetra-modular arabinoxylanase and zoom view on the CtGH5 loop. The blue module is the CtGH5 catalytic domain, the green module corresponds to the CtCBM6, the yellow module is the CtCBM13, and the salmon module is the fibronectin domain. Surfaces are semitransparent with the protein backbone represented as a cartoon. The CtGH5 loop is stabilized between the CtCBM6 and the CtCBM13 modules. The black dashes represent the hydrogen bonds. The protein backbone is represented as cartoon, and interacting residues are shown as sticks.