(hydroxy-(3-methylbut-2-enoxy) phosphoryl) oxyphosphonic acid
Dimethylallyl diphosphate; isoprenyl pyrophosphate; isoprenyl diphosphate
Molecular formula C
5H 12O 7P 2
Molar mass 246.092
Except where noted otherwise, data are given for materials in their
standard state (at 25 °C (77 °F), 100 kPa)
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Dimethyl (or -diphosphate) (DMAPP) is an intermediate product of both allyl pyrophosphate mevalonic acid (MVA) pathway and DOXP/ MEP pathway. It is an isomer of isopentenyl pyrophosphate (IPP) and exists in virtually all life forms. The enzyme isopentenyl pyrophosphate isomerase catalyzes the isomerization of DMAPP from IPP.
Precursor of DMAPP in the MVA pathway is mevalonic acid, and
2-C-methyl-D-erythritol-e-P in the MEP/DOXP pathway.
At present, it is believed that there is crossover between the two pathways in organisms that use both pathways to create
terpenes and terpenoids, such as in plants, and that DMAPP is the crossover product.
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