KEGG   REACTION: R09246
Entry
R09246                      Reaction                               
Name
geranylgeranyl-diphosphate:isopentenyl-diphosphate transferase (adding 2 isopentenyl units)
Definition
Geranylgeranyl diphosphate + 2 Isopentenyl diphosphate <=> all-trans-Hexaprenyl diphosphate + 2 Diphosphate
Equation
C00353 + 2 C00129 <=> C01230 + 2 C00013
Comment
2-step reaction
see R07475+R05613
Reaction class
RC00279  C00129_C01230
Enzyme
2.5.1.82
Pathway
rn00900  Terpenoid backbone biosynthesis
rn01110  Biosynthesis of secondary metabolites
Orthology
K05355  hexaprenyl-diphosphate synthase [EC:2.5.1.82 2.5.1.83]
K21268  hexaprenyl diphosphate synthase [EC:2.5.1.82]
Other DBs
RHEA: 27558
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