Cytokinin dehydrogenase
From Wikipedia, the free encyclopedia
In enzymology, a cytokinin dehydrogenase (EC 1.5.99.12) is an enzyme that catalyzes the chemical reaction
- N6-dimethylallyladenine + acceptor + H2O
adenine + 3-methylbut-2-enal + reduced acceptor
The 3 substrates of this enzyme are N6-dimethylallyladenine, acceptor, and H2O, whereas its 3 products are adenine, 3-methylbut-2-enal, and reduced acceptor.
This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-NH group of donors with other acceptors. The systematic name of this enzyme class is N6-dimethylallyladenine:acceptor oxidoreductase. Other names in common use include N6-dimethylallyladenine:(acceptor) oxidoreductase, 6-N-dimethylallyladenine:acceptor oxidoreductase, OsCKX2, CKX, and cytokinin oxidase/dehydrogenase.
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[edit] Structural studies
As of late 2007, 6 structures have been solved for this class of enzymes, with PDB accession codes 1W1O, 1W1Q, 1W1R, 1W1S, 2EXR, and 2Q4W.
[edit] References
- IUBMB entry for 1.5.99.12
- BRENDA references for 1.5.99.12 (Recommended.)
- PubMed references for 1.5.99.12
- PubMed Central references for 1.5.99.12
- Google Scholar references for 1.5.99.12
- Galuszka P, Frebort I, Sebela M, Sauer P, Jacobsen S, Pec P (2001). "Cytokinin oxidase or dehydrogenase? Mechanism of cytokinin degradation in cereals". Eur. J. Biochem. 268: 450–61. doi:. PMID 11168382.
[edit] External links
[edit] Gene Ontology (GO) codes
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