EC Number   |
General Information |
Reference |
|---|
   2.5.1.27 | evolution |
adenylate-type isopentenyl transferases might have evolved several times independently, phylogenetic analysis. Key enzymes for cytokinin synthesis and degradation (adenylate IPT and CKX) are found only in few species of cyanobacteria |
-, 739429 |
| 2.5.1.27 | metabolism |
cytokinins are important adenine-base phytohormones which promote cell division and their biosynthesis has two pathways depending on different substrates. The first pathway begins with the transfer of isopentenyl group from dimethylallyl diphosphate to the N6-amino group of AMP, ADP or ATP by adenylate isopentenyltransferase, AIPT |
722266 |
| 2.5.1.27 | metabolism |
initial reaction in the biosynthesis of cytokinins, which are important plant hormones |
705984 |
| 2.5.1.27 | metabolism |
IPT catalyzes the rate-limiting step for the addition of dimethylallyl diphosphate to the N6 of 5-AMP to form isopentenyl AMP, which is the precursor of isoprenoid cytokinins |
722898 |
| 2.5.1.27 | metabolism |
the biosynthesis of cytokinins starts with a transfer of dimethylallyl chain from dimethylallyl pyrophosphate (DMAPP) or (E)-4-hydroxy-3-methyl-but-2-enyl diphosphate (HMBPP) to N6-amino group of free or tRNA-bound adenosine phosphates. The reactions are catalyzed by related but distinct enzymes, adenylate dimethylallyltransferase (EC 2.5.1.27) and tRNA dimethylallyltransferase (EC 2.5.1.75), respectively, more frequently termed as isopentenyl transferases |
-, 739429 |
| 2.5.1.27 | metabolism |
the PcIPT5 paralogs signify hat they are mainly implicated in the production of iP-type cytokinins |
760003 |
| 2.5.1.27 | metabolism |
the PcIPT5 paralogs signify that they are mainly implicated in the production of iP-type cytokinins |
760003 |
| 2.5.1.27 | more |
transgenic expression of BoAIPT1 in bamboo plants increases the green bamboo shoot growth, with the top green shoot section having the highest expression level |
721952 |
| 2.5.1.27 | more |
transgenic IPT overexpressing line 529-28 shows significant drought tolerance, significantly delayed leaf senescence syndrome compared to wild-type plants, and accumulation of a high level of trans-zeatin-type cytokinins particularly of corresponding storage O-glucosides to maintain cytokinin homeostasis. Induced expression of IPT had effects on photosynthesis, sugar allocation and nitrogen partitioning, overview, phenotypes overview |
722898 |
| 2.5.1.27 | physiological function |
the isopentenyltransferase reaction is the key rate-limiting step in cytokinin biosynthesis that transfers the isopentenyl group from dimethylallyl diphosphate to the N6-amino group of adenine |
722266 |
