Patent ID: 8445246
Filing Date: 2013-05-21
Classification: C12N

Abstract:
1. A flavin-binding glucose dehydrogenase having the following properties (i) to (iii): (i) action: glucose dehydrogenase activity is exhibited in the presence of an electron acceptor, (ii) molecular weight: the molecular weight of the polypeptide chain portion of the protein is approximately 80 kDa, (iii) substrate specificity: the flavin-binding glucose dehydrogenase has a low reactivity for maltose, D-galactose and D-xylose, with respect to its reactivity for D-glucose, wherein the flavin-binding glucose dehydrogenase has an optimum pH of 6.5 to 7.0, an optimum temperature of 37 to 40° C., a stable pH range of 3.5 to 7.0 and a residual activity of at least 80% after heat treatment at 40° C. for 15 minutes.