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ENZYME entry: EC 2.5.1.112

Accepted Name
Adenylate dimethylallyltransferase (ADP/ATP-dependent).
Alternative Name(s)
Adenylate isopentenyltransferase.
Cytokinin synthase.
Isopentenyltransferase.
Reaction catalysed
  • Dimethylallyl diphosphate + ADP <=> diphosphate + N6-(dimethylallyl)adenosine diphosphate
  • Dimethylallyl diphosphate + ATP <=> diphosphate + N6-(dimethylallyl)adenosine 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
UniProtKB/Swiss-Prot
Q94ID3, IPT1_ARATH;  Q93WC9, IPT3_ARATH;  Q9SB60, IPT4_ARATH;  
Q94ID2, IPT5_ARATH;  Q9C6L1, IPT6_ARATH;  Q94ID1, IPT7_ARATH;  
Q9LJL4, IPT8_ARATH;  Q5GHF7, IPT_HUMLU;  

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All UniProtKB/Swiss-Prot entries referenced in this entry, with possibility to download in different formats, align etc.
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.5.1.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.5.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.-.-.-