| abstract |
An object is to provide α-glucosidase having superior transglycosylation activity and its use. In the amino acid sequence of α-glucosidase, a modified α-glucosidase consisting of an amino acid sequence in which one or more amino acids selected from the following group are substituted with other amino acids: position 385 of the amino acid sequence shown in SEQ ID NO: 1, Amino acids corresponding to amino acids at positions 491, 535, 450, 534, 537, 538, 554, 556, 630, 683 or 689, or 579 of the amino acid sequence shown in SEQ ID NO: 2 Or amino acids corresponding to amino acids at position 585. |