Dimethylallyl pyrophosphate

Dimethylallyl pyrophosphate
Names


IUPAC name (hydroxy-(3-methylbut-2-enoxy) phosphoryl) oxyphosphonic acid
Other names Dimethylallyl diphosphate; isoprenyl pyrophosphate; isoprenyl diphosphate
Identifiers
CAS Number	358-72-5^Y
ChemSpider	19951350^Y
Jmol interactive 3D	Image Image
MeSH	3,3-dimethylallyl+pyrophosphate
PubChem	647
InChI InChI=1S/C20H36O7P2/c1-13-17(5,6)23-28(21,24-18(7,8)14-2)27-29(22,25-19(9,10)15-3)26-20(11,12)16-4/h13-16H,1-4H2,5-12H3^Y Key: WTLAYXVNIWTZJI-UHFFFAOYSA-N^Y InChI=1/C20H36O7P2/c1-13-17(5,6)23-28(21,24-18(7,8)14-2)27-29(22,25-19(9,10)15-3)26-20(11,12)16-4/h13-16H,1-4H2,5-12H3 Key: WTLAYXVNIWTZJI-UHFFFAOYAD
SMILES CC(=CCOP(=O)(O)OP(=O)(O)O)C O=P(OP(=O)(OC(C)(C)C=C)OC(C)(C)C=C)(OC(C)(C)C=C)OC(C)(C)C=C
Properties
Chemical formula	C₅H₁₂O₇P₂
Molar mass	246.092
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is ^YN ?)
Infobox references

Dimethylallyl pyrophosphate (or alternatively, -diphosphate(DMADP)) (DMAPP) is an intermediate product of both 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.

Mevalonate pathway

Simplified version of the steroid synthesis pathway with the intermediates isopentenyl pyrophosphate (IPP), dimethylallyl pyrophosphate (DMAPP), geranyl pyrophosphate (GPP) and squalene shown. Some intermediates are omitted.

External links

Cholesterol and steroid metabolic intermediates

Mevalonate pathway

to HMG-CoA	Acetyl-CoA Acetoacetyl-CoA HMG-CoA

Ketone bodies	Acetone Acetoacetic acid β-Hydroxybutyric acid

to DMAPP	Mevalonic acid Phosphomevalonic acid 5-Diphosphomevalonic acid Isopentenyl pyrophosphate Dimethylallyl pyrophosphate

Geranyl-	Geranyl pyrophosphate Geranylgeranyl pyrophosphate

Carotenoid	Prephytoene diphosphate Phytoene

Non-mevalonate pathway

To Cholesterol

From Cholesterol
(to steroids)

Steroid hormones

See here instead.

Nonhuman

Phytosterols	Stigmasterol Brassicasterol

Ergosterols	Ergosterol Ergocalciferol

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