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Literature summary for 1.5.99.12 extracted from
- Increase in activity, glycosylation and expression of cytokinin oxidase/dehydrogenase during the senescence of barley leaf segments in the dark (2007), Physiol. Plant., 130, 572-579.
Activating Compound
| Activating Compound | Comment | Organism | Structure |
|---|---|---|---|
| additional information | dark-treatment results in high increase in CKX activity, addition of kinetin in dark-treated leaves results in high increase of CKX activity compared with dark-treated leaves without kinetin | Hordeum vulgare |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| additional information | Hordeum vulgare | irreversible oxidative cleavage of the N6-side chain of cytokinins, products are adenine and side-chain derived aldehyde | ? | - |
? |  |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Hordeum vulgare | - |
L., cv. Alexis | - |
Posttranslational Modification
| Posttranslational Modification | Comment | Organism |
|---|---|---|
| glycoprotein | high increase in enzyme glycosylation rate during dark-treatment | Hordeum vulgare |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| leaf | first foliage leaves are cut of and kept in water in the darkness which results in a high increase in CKX activity | Hordeum vulgare | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| additional information | irreversible oxidative cleavage of the N6-side chain of cytokinins, products are adenine and side-chain derived aldehyde | Hordeum vulgare | ? | - |
? | |
| N6-(2-isopentenyl)adenine + electron acceptor | - |
Hordeum vulgare | adenine + 3-methylbut-2-enal + reduced electron acceptor | - |
? | |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| CKX | - |
Hordeum vulgare |
| cytokinin oxidase/dehydrogenase | - |
Hordeum vulgare |
| More | formerly EC 1.4.3.18 | Hordeum vulgare |
Cofactor
| Cofactor | Comment | Organism | Structure |
|---|---|---|---|
| FAD | - |
Hordeum vulgare | |
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Release 2023.1 (January 2023)
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