Ligand zeaxanthin

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Basic Ligand Information

Molecular Structure
Picture of zeaxanthin (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
C40H56O2
zeaxanthin
JKQXZKUSFCKOGQ-QAYBQHTQSA-N


Show all pahtways known for Show all BRENDA pathways known for zeaxanthin

Roles as Enzyme Ligand

In Vivo Substrate in Enzyme-catalyzed Reactions (7 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
zeaxanthin + O2 = 3-hydroxy-beta-apo-10'-carotenal + 3-hydroxy-beta-ionone
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zeaxanthin + 2-oxoglutarate + O2 + H2O = astaxanthin + succinate + CO2 + 4 H+
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zeaxanthin + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ + O2 = antheraxanthin + 2 oxidized ferredoxin [iron-sulfur] cluster + H2O
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zeaxanthin + 2 reduced acceptor + 2 O2 = adonixanthin + 2 acceptor + 3 H2O
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In Vivo Product in Enzyme-catalyzed Reactions (9 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
beta-carotene + reduced cytochrome P-450 + O2 = zeaxanthin + oxidized cytochrome P-450 + H2O
show the reaction diagram
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Substrate in Enzyme-catalyzed Reactions (24 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
zeaxanthin + O2 = (3R)-11-cis-3-hydroxyretinal + (3R)-all-trans-3-hydroxyretinal
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zeaxanthin + O2 = 3-hydroxy-beta-apo-10'-carotenal + 3-hydroxy-beta-ionone
show the reaction diagram
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zeaxanthin + O2 = ?
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zeaxanthin + 2 reduced acceptor + 2 O2 = adonixanthin + 2 acceptor + 3 H2O
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zeaxanthin + O2 = adonixanthin + H2O
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Product in Enzyme-catalyzed Reactions (14 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
beta-carotene + reduced cytochrome P-450 + O2 = zeaxanthin + oxidized cytochrome P-450 + H2O
show the reaction diagram
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Inhibitor in Enzyme-catalyzed Reactions (2 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
non-competitive
-
product inhibition
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Enzyme Kinetic Parameters

KM Value (1 result)

EC NUMBER
KM VALUE [MM]
KM VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
0.01
-
30°C, 0.4 M Tris/HCl, pH 8.0, 1 mM dithiothreitol, 0.5 mM FeSO4, 5 mM ascorbic acid, 0.5 mM 2-oxoglutarate, 0.1% (mass/vol) deoxycholate

Ki Value (1 result)

EC NUMBER
KI VALUE [MM]
KI VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
0.0078
-
-

References & Links

Links to other databases for zeaxanthin

ChEBI
PubChem
ChEBI
PubChem