ID   2.5.1.112
DE   adenylate dimethylallyltransferase (ADP/ATP-dependent).
AN   adenylate isopentenyltransferase.
AN   cytokinin synthase.
AN   isopentenyltransferase.
CA   (1) dimethylallyl diphosphate + ADP = N(6)-(dimethylallyl)adenosine
CA   5'-diphosphate + diphosphate.
CA   (2) dimethylallyl diphosphate + ATP = N(6)-(dimethylallyl)adenosine
CA   5'-triphosphate + diphosphate.
CC   -!- Involved in the biosynthesis of cytokinins in plants.
CC   -!- The IPT4 isoform from the plant Arabidopsis thaliana is specific for
CC       ADP and ATP.
CC   -!- Other isoforms, such as IPT1 from Arabidopsis thaliana and the enzyme
CC       from the common hop, Humulus lupulus, also have a lower activity with
CC       AMP (cf. EC 2.5.1.27).
CC   -!- Formerly EC 2.5.1.n4.
DR   Q94ID3, IPT1_ARATH ;  Q93WC9, IPT3_ARATH ;  Q9SB60, IPT4_ARATH ;
DR   Q94ID2, IPT5_ARATH ;  Q9C6L1, IPT6_ARATH ;  Q94ID1, IPT7_ARATH ;
DR   Q9LJL4, IPT8_ARATH ;  Q5GHF7, IPT_HUMLU  ;
//