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Literature summary extracted from
- Violaxanthin de-epoxidase is rate-limiting for non-photochemical quenching under subsaturating light or during chilling in Arabidopsis (2012), Plant Physiol. Biochem., 58, 66-82.
Localization
| EC Number | Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|---|
| 1.23.5.1 | thylakoid | - |
Arabidopsis thaliana | 9579 | - |
Natural Substrates/ Products (Substrates)
| EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 1.23.5.1 | antheraxanthin + L-ascorbate | Arabidopsis thaliana | - |
zeaxanthin + L-dehydroascorbate + H2O | - |
? |  |
| 1.23.5.1 | violaxanthin + L-ascorbate | Arabidopsis thaliana | - |
antheraxanthin + L-dehydroascorbate + H2O | - |
? | |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 1.23.5.1 | Arabidopsis thaliana | Q39249 | ecotype Col-0 | - |
Purification (Commentary)
| EC Number | Purification (Comment) | Organism |
|---|---|---|
| 1.23.5.1 | TALON metal affinity resin column chromatography | Arabidopsis thaliana |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 1.23.5.1 | antheraxanthin + L-ascorbate | - |
Arabidopsis thaliana | zeaxanthin + L-dehydroascorbate + H2O | - |
? | |
| 1.23.5.1 | violaxanthin + L-ascorbate | - |
Arabidopsis thaliana | antheraxanthin + L-dehydroascorbate + H2O | - |
? | |
Synonyms
| EC Number | Synonyms | Comment | Organism |
|---|---|---|---|
| 1.23.5.1 | NPQ1 | - |
Arabidopsis thaliana |
| 1.23.5.1 | VDE | - |
Arabidopsis thaliana |
| 1.23.5.1 | violaxanthin de-epoxidase | - |
Arabidopsis thaliana |
Expression
| EC Number | Organism | Comment | Expression |
|---|---|---|---|
| 1.23.5.1 | Arabidopsis thaliana | chilling conditions reduce the activity of the enzyme | down |
General Information
| EC Number | General Information | Comment | Organism |
|---|---|---|---|
| 1.23.5.1 | malfunction | a reduction in enzyme expression results in greater photosensitivity | Arabidopsis thaliana |
| 1.23.5.1 | physiological function | the endogenous level of the enzyme is rate-limiting for non-photochemical quenching in Arabidopsis under subsaturating but not saturating light and can become rate-limiting under chilling conditions | Arabidopsis thaliana |
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Release 2023.1 (January 2023)
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