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Catalysis of the reaction: 2 geranylgeranyl diphosphate = diphosphate + prephytoene diphosphate. Catalysis of the reaction: geranyl diphosphate + isopentenyl diphosphate = diphosphate + trans,trans-farnesyl diphosphate. Catalysis of the transfer of a prenyl group from one compound (donor) to another (acceptor).

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: geranylgeranyl-diphosphate geranylgeranyltransferase activity
Acc: GO:0016767
Aspect: Molecular Function
Desc: Catalysis of the reaction: 2 geranylgeranyl diphosphate = diphosphate + prephytoene diphosphate.
Synonyms:
  • prephytoene-diphosphate synthase activity
  • PSase activity
  • phytoene synthetase activity
  • geranylgeranyl-diphosphate:geranylgeranyl-diphosphate geranylgeranyltransferase activity
Proteins in PDR annotated with:
   This term: 1 [Search]
   Term or descendants: 1 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0016767 - geranylgeranyl-diphosphate geranylgeranyltransferase activity (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle