The Enzyme Database

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EC 2.5.1.27     
Accepted name: adenylate dimethylallyltransferase
Reaction: dimethylallyl diphosphate + AMP = diphosphate + N6-(dimethylallyl)adenosine 5′-phosphate
For diagram of n6-(dimethylallyl)adenosine phosphates biosynthesis, click here
Other name(s): cytokinin synthase (ambiguous); isopentenyltransferase (ambiguous); 2-isopentenyl-diphosphate:AMP Δ2-isopentenyltransferase; adenylate isopentenyltransferase (ambiguous); IPT
Systematic name: dimethylallyl-diphosphate:AMP dimethylallyltransferase
Comments: Involved in the biosynthesis of cytokinins in plants. Some isoforms from the plant Arabidopsis thaliana are specific for AMP while others also have the activity of EC 2.5.1.112, adenylate dimethylallyltransferase (ADP/ATP-dependent).
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 72840-95-0
References:
1.  Chen, C.-M. and Melitz, D.K. Cytokinin biosynthesis in a cell-free system from cytokinin-autotrophic tobacco tissue cultures. FEBS Lett. 107 (1979) 15–20. [PMID: 499537]
2.  Takei, K., Sakakibara, H. and Sugiyama, T. Identification of genes encoding adenylate isopentenyltransferase, a cytokinin biosynthesis enzyme, in Arabidopsis thaliana. J. Biol. Chem. 276 (2001) 26405–26410. [PMID: 11313355]
3.  Sakano, Y., Okada, Y., Matsunaga, A., Suwama, T., Kaneko, T., Ito, K., Noguchi, H. and Abe, I. Molecular cloning, expression, and characterization of adenylate isopentenyltransferase from hop (Humulus lupulus L.). Phytochemistry 65 (2004) 2439–2446. [PMID: 15381407]
[EC 2.5.1.27 created 1984, modified 2002, modified 2013]
 
 


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