Enzymes
| UniProtKB help_outline | 513 proteins |
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Reaction participants Show >> << Hide
- Name help_outline 3D-3,5/4-trihydroxycyclohexane-1,2-dione Identifier CHEBI:28446 (Beilstein: 3199845; CAS: 949461-91-0) help_outline Charge 0 Formula C6H8O5 InChIKeyhelp_outline SHFQRUVRUBHHRE-CJPQEGFPSA-N SMILEShelp_outline O[C@@H]1CC(=O)C(=O)[C@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H2O Identifier CHEBI:15377 (Beilstein: 3587155; CAS: 7732-18-5) help_outline Charge 0 Formula H2O InChIKeyhelp_outline XLYOFNOQVPJJNP-UHFFFAOYSA-N SMILEShelp_outline [H]O[H] 2D coordinates Mol file for the small molecule Search links Involved in 6,204 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline 5-deoxy-D-glucuronate Identifier CHEBI:58852 Charge -1 Formula C6H9O6 InChIKeyhelp_outline HPITTXOWHLWIEK-IWGUZYHVSA-M SMILEShelp_outline O[C@H](CC([O-])=O)[C@H](O)[C@@H](O)C=O 2D coordinates Mol file for the small molecule Search links Involved in 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,431 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:25836 | RHEA:25837 | RHEA:25838 | RHEA:25839 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Publications
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Myo-inositol catabolism in Bacillus subtilis.
Yoshida K., Yamaguchi M., Morinaga T., Kinehara M., Ikeuchi M., Ashida H., Fujita Y.
The iolABCDEFGHIJ operon of Bacillus subtilis is responsible for myo-inositol catabolism involving multiple and stepwise reactions. Previous studies demonstrated that IolG and IolE are the enzymes for the first and second reactions, namely dehydrogenation of myo-inositol to give 2-keto-myo-inosito ... >> More
The iolABCDEFGHIJ operon of Bacillus subtilis is responsible for myo-inositol catabolism involving multiple and stepwise reactions. Previous studies demonstrated that IolG and IolE are the enzymes for the first and second reactions, namely dehydrogenation of myo-inositol to give 2-keto-myo-inositol and the subsequent dehydration to 3D-(3,5/4)-trihydroxycyclohexane-1,2-dione. In the present studies the third reaction was shown to be the hydrolysis of 3D-(3,5/4)-trihydroxycyclohexane-1,2-dione catalyzed by IolD to yield 5-deoxy-d-glucuronic acid. The fourth reaction was the isomerization of 5-deoxy-D-glucuronic acid by IolB to produce 2-deoxy-5-keto-D-gluconic acid. Next, in the fifth reaction 2-deoxy-5-keto-D-gluconic acid was phosphorylated by IolC kinase to yield 2-deoxy-5-keto-D-gluconic acid 6-phosphate. IolR is known as the repressor controlling transcription of the iol operon. In this reaction 2-deoxy-5-keto-D-gluconic acid 6-phosphate appeared to be the intermediate acting as inducer by antagonizing DNA binding of IolR. Finally, IolJ turned out to be the specific aldolase for the sixth reaction, the cleavage of 2-deoxy-5-keto-D-gluconic acid 6-phosphate into dihydroxyacetone phosphate and malonic semialdehyde. The former is a known glycolytic intermediate, and the latter was previously shown to be converted to acetyl-CoA and CO(2) by a reaction catalyzed by IolA. The net result of the inositol catabolic pathway in B. subtilis is, thus, the conversion of myo-inositol to an equimolar mixture of dihydroxyacetone phosphate, acetyl-CoA, and CO(2). << Less
J. Biol. Chem. 283:10415-10424(2008) [PubMed] [EuropePMC]
This publication is cited by 4 other entries.