2-epi-valiolone synthase EC#: 4.2.3.155; ChemWhat Code: 1382752
| Product Name | 2-epi-valiolone synthase |
| Example Structure |  |
| Synonyms | aroB, EVS |
| EC Number | 4.2.3.155 |
| CAS Registry Number | |
| Comments | The enzyme, characterized from the bacteria?Actinosynnema mirum?and?Stigmatella aurantiaca?DW4/3-1, produces 2-epi-valiolone, which is believed to function as a precursor in aminocyclitol biosynthesis. It requires a divalent metal ion (Zn2+?or Co2+) and an NAD+?cofactor, which is transiently reduced during the reaction.?cf. EC?4.2.3.152, 2-epi-5-epi-valiolone synthase and EC?4.2.3.154, desmethyl-4-deoxygadusol synthase. |
| Cofactor | NAD+ Co2+ or Zn2+ |
| History | |
| Reactions | D-sedoheptulose 7-phosphate = 2-epi-valiolone + phosphate. |
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