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Biosci Biotechnol Biochem. 2002 Jan;66(1):57-64.

Purification and properties of membrane-bound D-sorbitol dehydrogenase from Gluconobacter suboxydans IFO 3255.

Author information

1
Department of Applied Microbiology, Nippon Roche Research Center, Kamakura, Kanagawa, Japan. teruhide.sugisawa@roche.com

Abstract

D-Sorbitol dehydrogenase was solubilized from the membrane fraction of Gluconobacter suboxydans IFO 3255 with Triton X-100 in the presence of D-sorbitol. Purification of the enzyme was done by fractionation with column chromatographies of DEAE-Cellulose, DEAE-Sepharose, hydroxylapatite, and Sephacryl HR300 in the presence of Triton X-100. The molecular mass of the enzyme was 800 kDa, consisting of homologous subunits of 80 kDa. The optimum pH of the enzyme activity was 6.0, and the optimum temperature was 30 degrees C. Western blot analysis suggested the occurrence of the enzyme in all the Gluconobacter strains tested.

PMID:
11866120
DOI:
10.1271/bbb.66.57
[Indexed for MEDLINE]
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