zeaxanthin epoxidase EC#: 1.14.15.21; ChemWhat Code: 1375711
| Product Name | zeaxanthin epoxidase |
| Example Structure |  |
| Synonyms | ABA2 protein, At5g67030, CHL, chloroplastic lipocalin, LHCII, lipocalin-like protein, More, temperature stress-induced lipocalin, temperature-induced lipocalin, TIL, TpZEP1, TpZEP2, TpZEP3, violaxanthin cycle enzyme, ZE, Zea-epoxidase, zeaxanthin epoxidase, zeaxanthin-epoxidase, ZEP, ZEP1, ZEP2, ZEP3 |
| EC Number | 1.14.15.21 |
| CAS Registry Number | |
| Comments | A flavoprotein (FAD) that is active under conditions of low light. Along with EC 1.23.5.1, violaxanthin de-epoxidase, this enzyme forms part of the xanthophyll (or violaxanthin) cycle, which is involved in protecting the plant against damage by excess light. It will also epoxidize lutein in some higher-plant species. |
| Cofactor | FAD |
| History | |
| Reactions | Zeaxanthin + 4 reduced ferredoxin [iron-sulfur] cluster + 4 H(+) + 2 O(2) = violaxanthin + 4 oxidized ferredoxin [iron-sulfur] cluster + 2 H(2)O. |
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