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
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1.14.15.21
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photosystems
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light-harvesting
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chlorophyl
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thylakoids
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antenna
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trimer
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carotenoid
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photoprotection
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dissipation
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xanthophyl
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non-photochemical
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pigment-protein
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lutein
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supercomplexes
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chlamydomonas
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grana
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reinhardtii
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photochemical
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acclimation
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spinach
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excitonic
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chlorophyll-protein
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photodamage
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chls
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photoinhibition
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neoxanthin
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picosecond
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monogalactosyldiacylglycerol
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excited-state
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de-epoxidation
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photochemistry
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pigment-binding
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plastoquinol
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9-cis-epoxycarotenoid
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unstacked
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chlorophyll-binding
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oxygen-evolving
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lhcas
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low-light
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de-epoxidase
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psi-lhci
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appressed
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high-light
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carotenogenesis
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macroaggregates
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antheraxanthin
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carotenogenic
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overexcitation
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ultrafast
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unquenched
- 1.14.15.21
- photosystems
-
light-harvesting
-
chlorophyl
- thylakoids
- antenna
- trimer
-
carotenoid
-
photoprotection
-
dissipation
-
xanthophyl
-
non-photochemical
-
pigment-protein
- lutein
-
supercomplexes
- chlamydomonas
-
grana
- reinhardtii
-
photochemical
-
acclimation
- spinach
-
excitonic
-
chlorophyll-protein
-
photodamage
- chls
-
photoinhibition
- neoxanthin
-
picosecond
- monogalactosyldiacylglycerol
-
excited-state
-
de-epoxidation
-
photochemistry
-
pigment-binding
- plastoquinol
-
9-cis-epoxycarotenoid
-
unstacked
-
chlorophyll-binding
-
oxygen-evolving
-
lhcas
-
low-light
-
de-epoxidase
-
psi-lhci
-
appressed
-
high-light
-
carotenogenesis
-
macroaggregates
- antheraxanthin
-
carotenogenic
-
overexcitation
-
ultrafast
-
unquenched
Reaction
+ 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ + = + 2 oxidized ferredoxin [iron-sulfur] cluster +
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
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General Information
General Information on EC 1.14.15.21 - zeaxanthin epoxidase
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physiological function
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part of the xanthophyll biosynthetic pathway and the xanthophyll cycle
physiological function
part of the xanthophyll biosynthetic pathway and the xanthophyll cycle
physiological function
part of the xanthophyll biosynthetic pathway and the xanthophyll cycle
physiological function
part of the xanthophyll biosynthetic pathway and the xanthophyll cycle
physiological function
part of the xanthophyll biosynthetic pathway and the xanthophyll cycle
physiological function
gene ZEP2 is able to restore zeaxanthin epoxidation and a functional xanthophyll cycle when expressed in an Arabidopsis thaliana ZEP2 mutant
physiological function
gene ZEP3 is able to restore zeaxanthin epoxidation and a functional xanthophyll cycle when expressed in an Arabidopsis thaliana ZEP3 mutant
physiological function
heterologous expression in Nicotiana tabacum confers tolerance to drought and salt stress
physiological function
zeaxanthin oxidase is the major contributor to carotenoid composition, with mutants lacking ZEP activity showing a 6fold increase in total seed carotenoids relative to the wild type. Natural variation in ZEP gene expression during seed development is the underlying mechanism for fine-tuning carotenoid composition, stability, and ultimately content in Arabidopsis seed. ZEP acts as an upstream control point of carotenoid homeostasis, with ZEP-mediated epoxidation targeting carotenoids for degradation by carotenoid clevage dioxygenase enzymes
physiological function
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gene ZEP2 is able to restore zeaxanthin epoxidation and a functional xanthophyll cycle when expressed in an Arabidopsis thaliana ZEP2 mutant
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physiological function
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gene ZEP3 is able to restore zeaxanthin epoxidation and a functional xanthophyll cycle when expressed in an Arabidopsis thaliana ZEP3 mutant
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