FIG. 3.

Alignment of the amino acid sequence of A. kawachii β-glucosidase with the amino acid sequences of other fungal β-glucosidases. Amino acid residues are indicated by single-letter codes. Alignment was maximized by introducing gaps, which are indicated by dashes. The numbers indicate the multiple alignment positions from the N terminus. Conserved residues are shaded. The solid bars indicate the regions conserved in β-glucosidase subfamily B, and the open bar indicates an SDW motif. Stars indicate the putative active site (Asp) and proton donor (His). Abbreviations: AK BGKA, A. kawachii bglA; AA BGL1, A. aculeatus bgl1 (DDBJ/EMBL/GenBank accession no. D64088); SF BGL1, S. fibuligera bgl1 (SwissProt/GenBank/PIR accession no. P22506/M22475); TR BGL1, T. reesei bgl1 (DDBJ/EMBL/GenBank accession no. U09580).