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Immature diglucosylated N-glycan on β-galactosidase from Trichoderma reesei (a) Overall structure of Tr-β-gal (PDB code; 3ogv). N-linked glycan at Asn627 and Asn930 are shown in sphere models. The region delineated in black dotted lines is magnified in (b). (b) Close-up view of Asn930 attached glycan. Hydrogen bonds are shown as red dotted lines.
