Sorbitol oxidase from Xanthomonas maltophilia FERM BP-4512

Details Sorbitol oxidase from Xanthomonas maltophilia FERM BP-4512 Sorbitol oxidase from Xanthomonas maltophilia FERM BP-4512

1993-12-07

1995-12-05

Naff, David M.

Chemistry: molecular biology and microbiology

Enzyme , proenzyme; compositions thereof; process for...

Oxidoreductase

435910, 4352521, 435 25, C12N 904, C12N 112, C12N 100, C12Q 126

Patent

active

054728622

ABSTRACT:
An isolated sorbitol oxidase from Xanthomonas maltophilia FERM BP-4512 is disclosed. The oxidase catalyzes the reaction of D-sorbitol+O.sub.2 .fwdarw.D-glucose+H.sub.2 O.sub.2, has a substrate specificity for D-sorbitol, D-mannitol, D-xylitol, and D-arabitol, has an optimum pH of 6.5 to 7.5, and has a molecular weight of 54 kD as determined by gel filtration or 43 kD as determined by SDS-PAGE. The enzyme can be used for measuring a polyol in a sample and as a reagent in a kit used for determining the presence of D-sorbitol.

REFERENCES:
Moriguchi et al., J. Amer. Soc. Hort. Sci, 115(2), 278-281, 1990.
Yamaki et al., J. Amer. Soc. Hort. Sci, 111(1), 134-7, 1986.
Yamaki, Plant & Cell Physiol., 21(4), 591-9, 1980.
Yamaki, Plant Cell Physiol., 28(4), 557-64, 1987.
Yamaki et al., J. Japan. Soc. Holt. Sci., 57(4), 602-607, 1989.
Yamaki, Plant & Cell Physiol., 23(5), 891-9, 1982.

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