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1.14.15.21: zeaxanthin epoxidase

This is an abbreviated version!
For detailed information about zeaxanthin epoxidase, go to the full flat file.

Word Map on EC 1.14.15.21

Reaction

antheraxanthin
+ 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ +
O2
=
violaxanthin
 + 2 oxidized ferredoxin [iron-sulfur] cluster +
H2O

Synonyms

ABA2 protein, At5g67030, CHL, chloroplastic lipocalin, EC 1.14.13.90, 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

ECTree

     1 Oxidoreductases
         1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen
             1.14.15 With reduced iron-sulfur protein as one donor, and incorporation of one atom of oxygen into the other donor
                1.14.15.21 zeaxanthin epoxidase

Expression

Expression on EC 1.14.15.21 - zeaxanthin epoxidase

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EXPRESSION
ORGANISM
UNIPROT
LITERATURE
drought stress leads to a degradation of ZEP in leaves
drought stress leads to an increase of ZEP in roots
expression decreases in shoots under drought, cold, heat and abscisic acid treatment
light stress affects neither the accumulation nor the relative distribution of ZEP in chloroplasts
nodules can upregulate the ZEP expression under non-stressful conditions and in the earlier stage of different abiotic stress
Polyphyletic analyses of the presence of photoprotective compounds and zeaxanthin epoxidase sequences across a wide representation of the plant kingdom reveals no correlation between the presence of lutein-epoxide and recurrent mutations in sequences, including the duplications. There is an evolutionary trend to increase the content of alpha-tocopherol and to decrease the total amount of violaxanthin-cycle pigments.
Polyphyletic analyses of the presence of photoprotective compounds and zeaxanthin epoxidase ZE sequences across a wide representation of the plant kingdom reveals no correlation between the presence of lutein-epoxide and recurrent mutations in ZE sequences, including the duplications. There is an evolutionary trend to increase the content of alpha-tocopherol and to decrease the total amount of violaxanthin-cycle pigments.
the gene is upregulated during infection by Candidatus Leiberibacter asiaticus
-
transcript level of ZEP2 of Zea mays increases in developing endosperm within 14 days after pollination and decreases afterwards, transcript level of ZEP1 of Zea mays remains low during developement of endosperm
-
transcript levels are high after 4 weeks after sowing, decrease markedly in 5th week and increase to highest level up to the 14th week after sowing
transcript levels of ZEP1 and ZEP2 of Zea mays are highest in leaves, lower in roots and unfertilized ovules and lowest in endosperm and plant embryos
-
white and blue light increase mRNA levels of ZEP1, ZEP2 and ZEP3 1 to 8 hours after lights on, red light slightly upregulates transcription of ZEP2 gene, but has no effect on ZEP1 and ZEP3
ZEP is differentially expressed in a haplotype-specific fashion during late seed development
ZEP1 and ZEP2 of Zea mays transcript levels at 20 days after pollination show inverse correlation with seed zeaxanthin levels
-