InterPro domain: IPR039657

This entry includes tRNA dimethylallyltransferases (IPTs)and adenylate dimethylallyltransferases (IZTs). IPT catalyses the first step in the modification of an adenosine near the anticodon to 2-methylthio-N6-isopentyladenosine [ 1 ]. IZT transfers dimethylallyl groups to AMP as part of the biosynthesis of cytokinin phytohormones [ 2 ].

1. Isolation and characterization of MOD5, a gene required for isopentenylation of cytoplasmic and mitochondrial tRNAs of Saccharomyces cerevisiae. Mol. Cell. Biol. 7, 177-84
2. Identification of a cloned cytokinin biosynthetic gene. Proc. Natl. Acad. Sci. U.S.A. 81, 4776-80