Isopentenyl-diphosphate delta isomerase

isopentenyl-diphosphate Δ-isomerase
Isopentenyl-diphosphate delta isomerase octamer, Thermus thermophilus
Identifiers
EC no.5.3.3.2
CAS no.9033-27-6
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins
Isopentenyl-pyrophosphate Δ isomerase 1
Identifiers
SymbolIDI1
NCBI gene3422
HGNC5387
OMIM604055
RefSeqNM_004508
UniProtQ13907
Other data
EC number5.3.3.2
LocusChr. 10 p15.3
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StructuresSwiss-model
DomainsInterPro

Isopentenyl pyrophosphate isomerase (EC 5.3.3.2, IPP isomerase), also known as Isopentenyl-diphosphate delta isomerase, is an isomerase that catalyzes the conversion of the relatively un-reactive isopentenyl pyrophosphate (IPP) to the more-reactive electrophile dimethylallyl pyrophosphate (DMAPP). This isomerization is a key step in the biosynthesis of isoprenoids through the mevalonate pathway and the MEP pathway.

isopentenyl diphosphate dimethylallyl diphosphate

This enzyme belongs to the family of isomerases, specifically those intramolecular oxidoreductases transposing C=C bonds. The systematic name of this enzyme class is isopentenyl-diphosphate Delta3-Delta2-isomerase. Other names in common use include isopentenylpyrophosphate Delta-isomerase, methylbutenylpyrophosphate isomerase, and isopentenylpyrophosphate isomerase.