EC Number   |
Natural Substrates |
|---|
    1.14.15.21 | antheraxanthin + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ + O2 |
- |
| 1.14.15.21 | antheraxanthin + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ + O2 |
early step in abscisic acid biosynthetic pathway |
| 1.14.15.21 | antheraxanthin + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ + O2 |
reaction in violaxanthin cycle and in pigment/abscisic acid synthesis |
| 1.14.15.21 | antheraxanthin + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ + O2 |
the enzyme catalyzes the removal of epoxide groups in carotenoides of xanthophyll cycle in plants |
| 1.14.15.21 | antheraxanthin + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ + O2 |
the violaxanthin/antheraxanthin cycle in Mantionella is caused by the interaction of the slow second de-epoxidation step and the relatively fast epoxidation of antheraxanthin to violaxanthin |
| 1.14.15.21 | more |
drought stress causes an increase of zeaxanthin epoxidase mRNA in root but not in leafs. Strong diurnal expression pattern for zeaxanthin epoxidase in leafs, oscillation with a phase very similar to light-harvesting complex II mRNA, oscillation continues in a 48 h dark period |
| 1.14.15.21 | more |
the enzyme catalyses the epoxidation of zeaxanthin to antheraxanthin and violaxanthin, generating the epoxycarotenoid precursor of the ABA biosynthetic pathway, overview |
| 1.14.15.21 | more |
the enzyme catalyses the epoxidation of zeaxanthin to antheraxanthin and violaxanthin, generating the epoxycarotenoid precursor of the abscisic acid biosynthetic pathway, but has no regulating function on abscisic acid synthesis, overview |
| 1.14.15.21 | more |
the enzyme has a protective function of the photosynthetic system against temperature stress, the expression of lipocalins and lipocalin-like proteins is associated with abiotic stress response and is correlated with the plants capacity to develop freezing tolerance, overview |
| 1.14.15.21 | more |
the enzyme has a protective function of the photosynthetic system against temperature stress, the expression of lipocalins and lipocalin-like proteins is associated with abiotic stress response and is correlated with the plants capacity to develop freezing tolerance, overview, the enzyme is under regulation during the diurnal cycle |
