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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Inhibitors
Inhibitors on EC 1.14.15.21 - zeaxanthin epoxidase
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NaBr
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there is a decrease of enzyme activity to 21% of the activity of control thylakoids when incubated once with 2 M NaBr. A second treatment with 2 M NaBr leads to an almost complete inhibition of enzyme activity
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inhibition by interaction with a cysteine residue of the protein that is important for the enzyme activity
Cd2+
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inhibition by interaction with a cysteine residue of the protein that is important for the enzyme activity, inhibition by cadmium ions is reversible by Zn2+ ions
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no effect of sugars and amino sugars on violaxanthin de-epoxidase is observed, but epoxidation of zeaxanthin to violaxanthin is inhibited, incubation with amino sugars under a 6 d photoperiod enhances the inhibitory effect, zeaxanthin epoxidation is completely inhibited under such conditions, overview
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additional information
chilling stress under low irradiance and high light increase the de-epoxidation of xanthophyll cycle pigments, transgenic enzyme-overexpressing plants show enhanced PSII photoinhibition to high light and chilling stress
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additional information
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chilling stress under low irradiance and high light increase the de-epoxidation of xanthophyll cycle pigments, transgenic enzyme-overexpressing plants show enhanced PSII photoinhibition to high light and chilling stress
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