EC Number | Activating Compound | Comment | Organism | Structure |
---|---|---|---|---|
1.23.5.1 | 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 |
EC Number | Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|---|
1.23.5.1 | thylakoid | - |
Triticum aestivum | 9579 | - |
1.23.5.1 | 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 | - |
EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
1.23.5.1 | antheraxanthin + L-ascorbate | Triticum aestivum | - |
zeaxanthin + L-dehydroascorbate + H2O | - |
? | |
1.23.5.1 | violaxanthin + L-ascorbate | Triticum aestivum | - |
antheraxanthin + L-dehydroascorbate + H2O | - |
? |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
1.23.5.1 | Triticum aestivum | - |
- |
- |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
1.23.5.1 | antheraxanthin + L-ascorbate | - |
Triticum aestivum | zeaxanthin + L-dehydroascorbate + H2O | - |
? | |
1.23.5.1 | violaxanthin + L-ascorbate | - |
Triticum aestivum | antheraxanthin + L-dehydroascorbate + H2O | - |
? |
EC Number | Synonyms | Comment | Organism |
---|---|---|---|
1.23.5.1 | VDE | - |
Triticum aestivum |
1.23.5.1 | violaxanthin de-epoxidase | - |
Triticum aestivum |
EC Number | General Information | Comment | Organism |
---|---|---|---|
1.23.5.1 | 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 |
1.23.5.1 | 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 |
1.23.5.1 | 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 |