MUTANT ENZYME AND APPLICATION THEREOF

摘要

An object is to provide a novel enzyme that exhibits glucose dehydrogenase activity. Furthermore, another object is to provide a novel method pertaining to enzyme modification. Provided is a mutated enzyme containing an amino acid sequence wherein one or at least two amino acids selected from the group consisting of (1) to (13) are substituted with another amino acid in the amino acid sequence of a microorganism-derived glucose oxidase: (1) the amino acid corresponding to the amino acid at position 115 of the amino acid sequence of SEQ ID NO: 1; (2) the amino acid corresponding to the amino acid at position 131 of the amino acid sequence of SEQ ID NO: 1; (3) the amino acid corresponding to the amino acid at position 132 of the amino acid sequence of SEQ ID NO: 1; (4) the amino acid corresponding to the amino acid at position 193 of the amino acid sequence of SEQ ID NO: 1; (5) the amino acid corresponding to the amino acid at position 353 of the amino acid sequence of SEQ ID NO: 1; (6) the amino acid corresponding to the amino acid at position 436 of the amino acid sequence of SEQ ID NO: 1; (7) the amino acid corresponding to the amino acid at position 446 of the amino acid sequence of SEQ ID NO: 1; (8) the amino acid corresponding to the amino acid at position 472 of the amino acid sequence of SEQ ID NO: 1; (9) the amino acid corresponding to the amino acid at position 511 of the amino acid sequence of SEQ ID NO: 1; (10) the amino acid corresponding to the amino acid at position 535 of the amino acid sequence of SEQ ID NO: 1; (11) the amino acid corresponding to the amino acid at position 537 of the amino acid sequence of SEQ ID NO: 1; (12) the amino acid corresponding to the amino acid at position 582 of the amino acid sequence of SEQ ID NO: 1; and (13) the amino acid corresponding to the amino acid at position 583 of the amino acid sequence of SEQ ID NO: 1.