The Enzyme Database

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Accepted name: D-chiro-inositol 1-dehydrogenase
Reaction: 1D-chiro-inositol + NAD+ = 2D-2,3,5/4,6-pentahydroxycyclohexanone + NADH + H+
For diagram of inositol catabolism, click here
Glossary: 1D-chiro-inositol = 1,2,4/3,5,6-cyclohexane-1,2,3,4,5,6-hexol
Other name(s): DCI 1-dehydrogenase; IolG
Systematic name: 1D-chiro-inositol:NAD+ 1-oxidoreductase
Comments: The enzyme, found in the bacterium Bacillus subtilis, also catalyses the reaction of EC, inositol 2-dehydrogenase, and can also use D-glucose and D-xylose. It shows trace activity with D-ribose and D-fructose [1]. It is part of a myo-inositol/D-chiro-inositol degradation pathway leading to acetyl-CoA.
Links to other databases: BRENDA, EXPASY, Gene, KEGG, MetaCyc, PDB
1.  Ramaley, R., Fujita, Y. and Freese, E. Purification and properties of Bacillus subtilis inositol dehydrogenase. J. Biol. Chem. 254 (1979) 7684–7690. [PMID: 112095]
2.  Yoshida, K., Yamaguchi, M., Morinaga, T., Ikeuchi, M., Kinehara, M. and Ashida, H. Genetic modification of Bacillus subtilis for production of D-chiro-inositol, an investigational drug candidate for treatment of type 2 diabetes and polycystic ovary syndrome. Appl. Environ. Microbiol. 72 (2006) 1310–1315. [DOI] [PMID: 16461681]
[EC created 2014]

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