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UniProt functional annotation for Q9T0N8 | ||
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| UniProt code: Q9T0N8. |
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| Organism: | |
Zea mays (Maize). |
| Taxonomy: | |
Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; PACMAD clade; Panicoideae; Andropogonodae; Andropogoneae; Tripsacinae; Zea. |
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| Function: | |
Catalyzes the oxidation of cytokinins, a family of N(6)- substituted adenine derivatives that are plant hormones, where the substituent is an isopentenyl group. Cleaves zeatin, isopentenyladenine, isopentenyladenosine, zeatin riboside and cis- zeatin, but not dihydrozeatin, kinetin and benzylaminopurine. |
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| Catalytic activity: | |
Reaction=A + H2O + N(6)-dimethylallyladenine = 3-methyl-2-butenal + adenine + AH2; Xref=Rhea:RHEA:13625, ChEBI:CHEBI:13193, ChEBI:CHEBI:15377, ChEBI:CHEBI:15825, ChEBI:CHEBI:16708, ChEBI:CHEBI:17499, ChEBI:CHEBI:17660; EC=1.5.99.12; |
| Cofactor: | |
Name=FAD; Xref=ChEBI:CHEBI:57692; |
| Activity regulation: | |
Competitive inhibition by phenylureas. |
| Subunit: | |
Monomer. {ECO:0000250}. |
| Subcellular location: | |
Secreted, extracellular space. |
| Tissue specificity: | |
Expressed in immature kernels and unpollinated cobs. Weakly expressed in kernels harvested two weeks after anthesis. {ECO:0000269|PubMed:11154345}. |
| Ptm: | |
Glycosylated; with approximately 10 hexose residues per site. |
| Similarity: | |
Belongs to the oxygen-dependent FAD-linked oxidoreductase family. {ECO:0000305}. |
Annotations taken from UniProtKB at the EBI.