Vector containing a DNA coding for a novel glucose dehydrogenase and method
First Claim
1. A recombinant vector comprising a DNA coding for a NADP-specific glucose dehydrogenase showing a NADP/NAD activity ratio of no lower than 300, derived from Lactobacillus plantarum, which is selected from the group consisting of:
- (a) a DNA comprising SEQ ID NO;
2;
(b) a DNA coding for a polypeptide having the amino acid sequence of SEQ ID NO;
1; and
(c) a DNA coding for a polypeptide at least 90% sequence identical to the polypeptide of SEQ ID NO;
1.
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Abstract
The invention relates to a glucose dehydrogenase showing an NADP/NAD activity ratio, namely the value obtained by dividing the enzyme activity value obtained by using NADP as a coenzyme by the enzyme activity value obtained by using NAD as a coenzyme, of not lower than 300, to a gene coding therefor, and to a transformant harboring that gene. The enzyme of the invention is very high in NADP specificity and can be suitably used, for example, for NADPH production, for coenzyme regeneration in enzymatic reduction reactions, and in biosensors for glucose concentration measurements.
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Citations
7 Claims
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1. A recombinant vector comprising a DNA coding for a NADP-specific glucose dehydrogenase showing a NADP/NAD activity ratio of no lower than 300, derived from Lactobacillus plantarum, which is selected from the group consisting of:
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(a) a DNA comprising SEQ ID NO;
2;(b) a DNA coding for a polypeptide having the amino acid sequence of SEQ ID NO;
1; and(c) a DNA coding for a polypeptide at least 90% sequence identical to the polypeptide of SEQ ID NO;
1. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification