1.5.99.12: cytokinin dehydrogenase

This is an abbreviated version!
For detailed information about cytokinin dehydrogenase, go to the full flat file.

Reaction

Synonyms

AtCKX2, AtCKX3, AtCKX6, AtCKX7, CKO, CKO1, CKX, CKX1, CKX10, CKX12, CKX2, CKX2-2, CKX3, CKX4, CKX4a, CKX5, CKX6, CKX7, CKX8, CKX9, cytokinin dehydrogenase, cytokinin dehydrogenase 1, cytokinin dehydrogenase CKX1, cytokinin dehydrogenase CKX10, cytokinin oxidase, cytokinin oxidase/dehydrogenase, DhCKX, HvCKX1, isopentenyladenosine oxidase, More, N6-(D2-isopentenyl)adenosine oxidase, N6-dimethylallyladenine dehydrogenase, N6-isopentenylaldenine oxidase, OsCKX2, PsCKX1, PsCKX2, VIT_00s0252g00040, VIT_00s2520g00010, VIT_04s0008g01880, VIT_07s0005g05960, VIT_07s0005g06010, VIT_11s0016g02110, VIT_13s0158g00320, VIT_18s0001g13200, zeatin oxidase, ZmCKO1, ZmCKX1

ECTree

     1 Oxidoreductases

         1.5 Acting on the CH-NH group of donors

             1.5.99 With unknown physiological acceptors

                1.5.99.12 cytokinin dehydrogenase

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Results	in table
11	Activating Compound
2677	AA Sequence
1	Application
1	CAS Registry Number
36	Cloned(Commentary)
40	Cofactor
5	Crystallization (Commentary)
10	Expression
34	General Information
75	IC50 Value
65	Inhibitors
4	Ki Value [mM]
41	KM Value [mM]
40	Localization
9	Metals/Ions
43	Molecular Weight [Da]
73	Natural Substrates/ Products (Substrates)
134	Organism
2	Pathway
25	PDB ID
42	pH Optimum
1	pH Range
13	pI Value
18	Posttranslational Modification
10	Protein Variants
26	Purification (Commentary)
5	Reaction
3	Reaction Type
128	Reference
131	Source Tissue
26	Specific Activity [micromol/min/mg]
299	Substrates and Products (Substrate)
31	Subunits
168	Synonyms
1	Systematic Name
4	Temperature Optimum [°C]
1	Temperature Stability [°C]
28	Turnover Number [1/s]

Systematic Name

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Systematic Name on EC 1.5.99.12 - cytokinin dehydrogenase

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SYSTEMATIC NAME

IUBMB Comments

N6-dimethylallyladenine:acceptor oxidoreductase

A flavoprotein (FAD). Catalyses the oxidation of cytokinins, a family of N6-substituted adenine derivatives that are plant hormones, where the substituent is a prenyl group. Although this activity was previously thought to be catalysed 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 copper(II) in the presence of imidazole can act as acceptors. This enzyme plays a part in regulating rice-grain production, with lower levels of the enzyme resulting in enhanced grain production [2].