KEGG   REACTION: R07916Help
Entry
R07916                      Reaction                               

Name
geranylgeranyl-diphosphate:geranylgeranyl-diphosphate geranylgeranyltransferase
Definition
2 Geranylgeranyl diphosphate <=> all-trans-Phytoene + 2 Diphosphate
Equation
2 C00353 <=> C05413 + 2 C00013
Comment
multistep reaction (see R02065+R07270)
Enzyme
Other DBs
RHEA: 32454

KEGG   REACTION: R02065Help
Entry
R02065                      Reaction                               

Name
geranylgeranyl-diphosphate:geranylgeranyl-diphosphate geranylgeranyltransferase
Definition
2 Geranylgeranyl diphosphate <=> Diphosphate + Prephytoene diphosphate
Equation
Comment
a part of multi-step reaction (see R07916, R02065+R07270)
subsequently R07270
a part of multi-step reaction (see R10177, R02065+R04218)
a part of multi-step reaction (see R12281, R02065+R12280)
Reaction class
RC00362  C00353_C03427
RC02869  C00353_C03427
Enzyme
2.5.1.32        2.5.1.148
Pathway
rn00906  Carotenoid biosynthesis
rn01100  Metabolic pathways
rn01110  Biosynthesis of secondary metabolites
Module
M00097  beta-Carotene biosynthesis, GGAP => beta-carotene
Orthology
K02291  15-cis-phytoene synthase [EC:2.5.1.32]
K17841  15-cis-phytoene synthase / lycopene beta-cyclase [EC:2.5.1.32 5.5.1.19]
Other DBs
RHEA: 22299

KEGG   REACTION: R07270Help
Entry
R07270                      Reaction                               

Name
prephytoene diphosphate:geranylgeranyl-diphosphate geranylgeranyltransferase
Definition
Prephytoene diphosphate <=> all-trans-Phytoene + Diphosphate
Equation
Comment
see R07916
Reaction class
RC01101  C03427_C05413
Enzyme
Pathway
rn00906  Carotenoid biosynthesis
rn01110  Biosynthesis of secondary metabolites
Orthology
K02291  15-cis-phytoene synthase [EC:2.5.1.32]
K17841  15-cis-phytoene synthase / lycopene beta-cyclase [EC:2.5.1.32 5.5.1.19]
Other DBs
RHEA: 10919

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