Fig. 7

Crystal structures of endoglucanases bound to β-1,3-glucan chains. a Two β-1,3-glucooligosaccharide chains (DP = 4 and 5) bound to the active site of PbBgl64A (PDB ID: 5H9Y). b Three β-1,3-glucooligosaccharide chains (DP = 10, 3, and 2) bound to the active site of BhGH81 (PDB ID: 5T4G). c CBM6E bound to two β-1,3-glucooligosaccharide chains (DP = 4 and 5), with a novel and critical sugar-binding residue T376 within the CBM6 domain highlighted in blue. Proteins are shown in surface model and β-glucan chains in stick representation