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ENZYME

ENZYME entry: EC 2.5.1.112

Accepted Name
adenylate dimethylallyltransferase (ADP/ATP-dependent)
Alternative Name(s)
adenylate isopentenyltransferase
cytokinin synthase
isopentenyltransferase
Reaction catalysed
  • ADP + dimethylallyl diphosphate <=> diphosphate + N(6)-(dimethylallyl)adenosine 5'-diphosphate
  • ATP + dimethylallyl diphosphate <=> diphosphate + N(6)-(dimethylallyl)adenosine 5'-triphosphate
Comment(s)
  • Involved in the biosynthesis of cytokinins in plants.
  • The IPT4 isoform from the plant Arabidopsis thaliana is specific for ADP and ATP.
  • Other isoforms, such as IPT1 from Arabidopsis thaliana and the enzyme from the common hop, Humulus lupulus, also have a lower activity with AMP (cf. EC 2.5.1.27).
  • Formerly EC 2.5.1.n4.
Cross-references
BRENDA2.5.1.112
EC2PDB2.5.1.112
ExplorEnz2.5.1.112
PRIAM enzyme-specific profiles2.5.1.112
KEGG Ligand Database for Enzyme Nomenclature2.5.1.112
IUBMB Enzyme Nomenclature2.5.1.112
IntEnz2.5.1.112
MEDLINEFind literature relating to 2.5.1.112
MetaCyc2.5.1.112
Rhea expert-curated reactions2.5.1.112
UniProtKB/Swiss-Prot
Q94ID3, IPT1_ARATHQ93WC9, IPT3_ARATHQ9SB60, IPT4_ARATH
Q94ID2, IPT5_ARATHQ9C6L1, IPT6_ARATHQ94ID1, IPT7_ARATH
Q9LJL4, IPT8_ARATHQ5GHF7, IPT_HUMLU

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.5.1.-
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