FIGURE 1.

Structure of XdINV. A, ribbon diagram of XdINV monomer showing the bimodular molecular architecture, colored in rainbow sequence-code, which folds into a catalytic β-propeller domain and a β-sandwich domain. Two well-ordered glycan chains are observed at positions Asn-58 and Asn-107, whereas Asn-471 is the only position conserved within GH32 from fungi. B, molecular surface of XdINV with the same color code, and the N-glycan chains shown as sticks. C, XdINV is a highly glycosylated protein containing 18 potential glycosylation sites; apart from the two long N-glycans, GlcNAc units have been found in the crystal N-attached to other Asn residues, their location being indicated by small yellow spheres.