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. 2002 Mar;68(3):1250–1256. doi: 10.1128/AEM.68.3.1250-1256.2002

FIG. 6.

FIG. 6.

Comparison of the amino acid sequence of A. nidulans AgdB with those of GH family 31 α-glucosidases. (A) Multiple alignment of the regions corresponding to two GH family 31 signature sequences. Conserved amino acids are shaded, and the derived consensus sequences are given below the alignment. Uppercase letters indicate conserved residues, and the asterisk indicates a catalytic residue. (B) Phylogenetic tree of α-glucosidases belonging to GH family 31. Bootstrap values (based on 1,000 bootstrap trials) are shown at each node. The scale bar corresponds to a genetic distance of 0.1 substitution per position. Abbreviations: ORF, open reading frame; SI, sucrase-isomaltase; MG, maltase-glucoamylase.