Sequence alignment of GH79 GUSs, including AnGlcAase from A. niger, NcGlcAase from N. crassa, and AcGlcA79A from A. capsulatum. The dashed boxes indicate the conserved sequences containing catalytic residues, and stars indicate catalytic residues. Three sequence identity levels (100%, 75%, and 50%) are shown in black, purple, and cyan, respectively.