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Literature summary for 1.23.5.1 extracted from

  • Latowski, D.; Goss, R.; Bojko, M.; Strzałka, K.
    Violaxanthin and diadinoxanthin de-epoxidation in various model lipid systems (2012), Acta Biochim. Pol., 59, 101-103.
    View publication on PubMed
Search for more literature for 1.23.5.1

Activating Compound

Activating Compound Comment Organism Structure
additional information effect of fluidity of hydrophobic fraction of inverted micelles composed of different types of lipids on enzyme activity, best activation by monogalactosyldiacylglycerol Triticum aestivum

Localization

Localization Comment Organism GeneOntology No. Textmining
thylakoid
-
 Triticum aestivum 9579
-
thylakoid a water soluble lumenal enzyme, change in enzyme conformation is accompanied by the functional binding of the enzymes to the thylakoid membrane, where the substrate violaxanthin is located Triticum aestivum 9579
-

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
antheraxanthin + L-ascorbate Triticum aestivum
-
 zeaxanthin + L-dehydroascorbate + H2O
-
 ?
violaxanthin + L-ascorbate Triticum aestivum
-
 antheraxanthin + L-dehydroascorbate + H2O
-
 ?

Organism

Organism UniProt Comment Textmining
Triticum aestivum
-
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
antheraxanthin + L-ascorbate
-
 Triticum aestivum zeaxanthin + L-dehydroascorbate + H2O
-
 ?
violaxanthin + L-ascorbate
-
 Triticum aestivum antheraxanthin + L-dehydroascorbate + H2O
-
 ?

Synonyms

Synonyms Comment Organism
VDE
-
 Triticum aestivum
violaxanthin de-epoxidase
-
 Triticum aestivum

General Information

General Information Comment Organism
evolution the violaxanthin cycle: under strong light conditions, enzyme violaxanthin de-epoxidase catalyses de-epoxidation of violaxanthin (Vx) to zeaxanthin via antheraxanthin as an intermediate product. This type of the cycle exists in higher plants, ferns, mosses and some group of algae Triticum aestivum
metabolism the xanthophyll cycle is an important photoprotective process functioning in plants. One of its forms, the violaxanthin cycle, involves interconversion between violaxanthin, antheraxanthin, and zeaxanthin Triticum aestivum
physiological function VDE is a water soluble lumenal protein that undergoes a conformational change when pH drops due to formation of the light-driven proton gradient across the thylakoid membrane. The change in enzyme conformation is accompanied by the functional binding of the enzymes to the thylakoid membrane, where the substrate violaxanthin is located Triticum aestivum