Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary extracted from

  • Avalbaev, A.M.; Somov, K.A.; Yuldashev, R.A.; Shakirova, F.M.
    Cytokinin oxidase is key enzyme of cytokinin degradation (2012), Biochemistry (Moscow), 77, 1354-1361.
    View publication on PubMed

Protein Variants

EC Number Protein Variants Comment Organism
1.5.99.12 additional information overexpression of the AtCKX genes in tobacco leading to shoot senescence, an increase of the root meristem zone, and enhanced formation of lateral roots Arabidopsis thaliana
1.5.99.12 additional information silencing of the OsCKX2 gene of rice cytokinin oxidase Oryza sativa

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
1.5.99.12 apoplast isozyme AtCKX4 Arabidopsis thaliana 48046
-
1.5.99.12 apoplast isozymes OsCKX1 and OsCKX4 Oryza sativa 48046
-
1.5.99.12 apoplast isozymes ZmCKX1 and ZmCKX2 Zea mays 48046
-
1.5.99.12 cytoplasm isozyme AtCKX7 Arabidopsis thaliana 5737
-
1.5.99.12 cytoplasm isozyme OsCKX11 Oryza sativa 5737
-
1.5.99.12 cytosol isozyme ZmCKX10 Zea mays 5829
-
1.5.99.12 vacuole isozyme AtCKX1 Arabidopsis thaliana 5773
-

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.5.99.12 cis-zeatin + acceptor + H2O Zea mays
-
?
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O Hordeum vulgare
-
adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O Zea mays
-
adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O Populus sp.
-
adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O Nicotiana tabacum
-
adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O Arabidopsis thaliana
-
adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O Oryza sativa
-
adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O Physcomitrium patens
-
adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O Selaginella moellendorffii
-
adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 trans-zeatin + acceptor + H2O Zea mays
-
?
-
?
1.5.99.12 trans-zeatin + acceptor + H2O Arabidopsis thaliana
-
?
-
?

Organism

EC Number Organism UniProt Comment Textmining
1.5.99.12 Arabidopsis thaliana
-
isozymes AtCKX1, AtCKX4, and AtCKX7
-
1.5.99.12 Hordeum vulgare
-
gene and isozyme HvCKX1
-
1.5.99.12 Nicotiana tabacum
-
-
-
1.5.99.12 Oryza sativa
-
isozymes OsCKX1, OsCKX4, and OsCKX11
-
1.5.99.12 Physcomitrium patens
-
-
-
1.5.99.12 Populus sp.
-
-
-
1.5.99.12 Selaginella moellendorffii
-
-
-
1.5.99.12 Zea mays
-
isoyzmes ZmCKX1, ZmCKX2, and ZmCKX10
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.5.99.12 kernel
-
Zea mays
-
1.5.99.12 additional information isozyme AtCKX1 is expressed in all plant organs Arabidopsis thaliana
-
1.5.99.12 additional information isozyme ZmCKX1 in reproductive organs Zea mays
-
1.5.99.12 plant reproductive system isozyme OsCKX11 Oryza sativa
-
1.5.99.12 root isoyzme ZmCKX10 Zea mays
-
1.5.99.12 root isozyme AtCKX4 Arabidopsis thaliana
-
1.5.99.12 root isozyme OsCKX1 Oryza sativa
-
1.5.99.12 shoot isozyme AtCKX4 Arabidopsis thaliana
-
1.5.99.12 shoot isozyme OsCKX4 Oryza sativa
-
1.5.99.12 shoot isozymes ZmCKX2 and ZmCKX10 Zea mays
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.5.99.12 cis-zeatin + acceptor + H2O
-
Zea mays ?
-
?
1.5.99.12 cis-zeatin + acceptor + H2O preferred substrate of isozyme ZmCKX10 Zea mays ?
-
?
1.5.99.12 N6-(2-isopentenyl)adenine + acceptor + H2O preferred substrate of isozyme AtCKX4 Arabidopsis thaliana ?
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O
-
Hordeum vulgare adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O
-
Zea mays adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O
-
Populus sp. adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O
-
Nicotiana tabacum adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O
-
Arabidopsis thaliana adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O
-
Oryza sativa adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O
-
Physcomitrium patens adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 N6-dimethylallyladenine + acceptor + H2O
-
Selaginella moellendorffii adenine + 3-methylbut-2-enal + reduced acceptor
-
?
1.5.99.12 trans-zeatin + acceptor + H2O
-
Zea mays ?
-
?
1.5.99.12 trans-zeatin + acceptor + H2O
-
Arabidopsis thaliana ?
-
?
1.5.99.12 trans-zeatin + acceptor + H2O preferred substrate of isozymes AtCKX4 and AtCKX1 Arabidopsis thaliana ?
-
?
1.5.99.12 trans-zeatin + acceptor + H2O preferred substrate of isozymes ZmCKX1 and ZmCKX10 Zea mays ?
-
?

Synonyms

EC Number Synonyms Comment Organism
1.5.99.12 cytokinin oxidase
-
Hordeum vulgare
1.5.99.12 cytokinin oxidase
-
Zea mays
1.5.99.12 cytokinin oxidase
-
Populus sp.
1.5.99.12 cytokinin oxidase
-
Nicotiana tabacum
1.5.99.12 cytokinin oxidase
-
Arabidopsis thaliana
1.5.99.12 cytokinin oxidase
-
Oryza sativa
1.5.99.12 cytokinin oxidase
-
Physcomitrium patens
1.5.99.12 cytokinin oxidase
-
Selaginella moellendorffii
1.5.99.12 HvCKX1
-
Hordeum vulgare

Cofactor

EC Number Cofactor Comment Organism Structure
1.5.99.12 FAD
-
Hordeum vulgare
1.5.99.12 FAD
-
Zea mays
1.5.99.12 FAD
-
Arabidopsis thaliana

General Information

EC Number General Information Comment Organism
1.5.99.12 malfunction overexpression of the AtCKX genes in tobacco leads to shoot senescence, an increase of the root meristem zone, and enhanced formation of lateral roots Arabidopsis thaliana
1.5.99.12 malfunction silencing of the HvCKX1 gene of barley cytokinin oxidase leads to a significant inhibition of cytokinin oxidase activity accompanied by an increase in productivity of this culture Hordeum vulgare
1.5.99.12 physiological function the enzyme catalyzes the irreversible degradation of cytokinin phytohormones that are extremely necessary for growth, development, and differentiation of plants. Cytokinin oxidase plays an important role in the regulation of levels of cytokinin hormones, the enzyme directly influences cytokinin-regulated physiological processes in plants Hordeum vulgare
1.5.99.12 physiological function the enzyme catalyzes the irreversible degradation of cytokinin phytohormones that are extremely necessary for growth, development, and differentiation of plants. Cytokinin oxidase plays an important role in the regulation of levels of cytokinin hormones, the enzyme directly influences cytokinin-regulated physiological processes in plants Zea mays
1.5.99.12 physiological function the enzyme catalyzes the irreversible degradation of cytokinin phytohormones that are extremely necessary for growth, development, and differentiation of plants. Cytokinin oxidase plays an important role in the regulation of levels of cytokinin hormones, the enzyme directly influences cytokinin-regulated physiological processes in plants Populus sp.
1.5.99.12 physiological function the enzyme catalyzes the irreversible degradation of cytokinin phytohormones that are extremely necessary for growth, development, and differentiation of plants. Cytokinin oxidase plays an important role in the regulation of levels of cytokinin hormones, the enzyme directly influences cytokinin-regulated physiological processes in plants Nicotiana tabacum
1.5.99.12 physiological function the enzyme catalyzes the irreversible degradation of cytokinin phytohormones that are extremely necessary for growth, development, and differentiation of plants. Cytokinin oxidase plays an important role in the regulation of levels of cytokinin hormones, the enzyme directly influences cytokinin-regulated physiological processes in plants Arabidopsis thaliana
1.5.99.12 physiological function the enzyme catalyzes the irreversible degradation of cytokinin phytohormones that are extremely necessary for growth, development, and differentiation of plants. Cytokinin oxidase plays an important role in the regulation of levels of cytokinin hormones, the enzyme directly influences cytokinin-regulated physiological processes in plants Oryza sativa
1.5.99.12 physiological function the enzyme catalyzes the irreversible degradation of cytokinin phytohormones that are extremely necessary for growth, development, and differentiation of plants. Cytokinin oxidase plays an important role in the regulation of levels of cytokinin hormones, the enzyme directly influences cytokinin-regulated physiological processes in plants Physcomitrium patens
1.5.99.12 physiological function the enzyme catalyzes the irreversible degradation of cytokinin phytohormones that are extremely necessary for growth, development, and differentiation of plants. Cytokinin oxidase plays an important role in the regulation of levels of cytokinin hormones, the enzyme directly influences cytokinin-regulated physiological processes in plants Selaginella moellendorffii