CATH Classification
Domain Context
CATH Clusters
| Superfamily | Uridine Diphospho-n-acetylenolpyruvylglucosamine Reductase, domain 2 |
| Functional Family |
Enzyme Information
| 1.5.99.12 |
Cytokinin dehydrogenase.
based on mapping to UniProt Q9T0N8
N(6)-dimethylallyladenine + acceptor + H(2)O = adenine + 3-methylbut-2- enal + reduced acceptor.
-!- Converts zeatin and related cytokinins. -!- Catalyzes the oxidation of cytokinins, a family of N(6)-substituted adenine derivatives that are plant hormones, where the substituent is a dimethylallyl or other prenyl group. -!- Although this activity was previously thought to be catalyzed by a hydrogen-peroxide-forming oxidase, this enzyme does not require oxygen for activity and does not form hydrogen peroxide. -!- 2,6-dichloroindophenol, methylene blue, nitroblue tetrazolium, phenazine methosulfate and Cu(2+) in the presence of imidazole can act as acceptors.
|
UniProtKB Entries (1)
| Q9T0N8 |
CKX1_MAIZE
Zea mays
Cytokinin dehydrogenase 1
|
PDB Structure
| PDB | 2QKN |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
Phenyl- and benzylurea cytokinins as competitive inhibitors of cytokinin oxidase/dehydrogenase: a structural study.
Biochimie
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