| Names | |
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IUPAC name
(hydroxy-(3-methylbut-3-enoxy) phosphoryl)oxyphosphonic acid
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| Identifiers | |
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358-71-4 |
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| 3D model (Jmol) | Interactive image |
| ChEBI |
CHEBI:128769 |
| ChemSpider |
13115335 |
| MeSH | isopentenyl+pyrophosphate |
| PubChem | 15983957 |
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| Properties | |
| C5H12O7P2 | |
| Molar mass | 246.092 |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
Isopentenyl pyrophosphate (IPP, isopentenyl diphosphate, or IDP) is an intermediate in the classical, HMG-CoA reductase pathway (commonly called the mevalonate pathway), and is used by organisms in the biosynthesis of terpenes and terpenoids. IPP is formed from acetyl-CoA via the mevalonate pathway (the "upstream" part), and then is isomerized to dimethylallyl pyrophosphate by the enzyme isopentenyl pyrophosphate isomerase.
IPP can be synthesized via the alternative, non-mevalonate pathway of isoprenoid biosynthesis instead, where it is formed from (E)-4-hydroxy-3-methyl-but-2-enyl pyrophosphate (HMB-PP) by the enzyme HMB-PP reductase (LytB, IspH). The non-mevalonate pathway is utilized by many bacteria, apicomplexan protozoa such as malaria parasites, and the plastids of higher plants.