ID   2.5.1.81
DE   geranylfarnesyl diphosphate synthase.
AN   FGPP synthase.
CA   (2E,6E,10E)-geranylgeranyl diphosphate + isopentenyl diphosphate =
CA   (2E,6E,10E,14E)-geranylfarnesyl diphosphate + diphosphate.
CC   -!- The enzyme from Methanosarcina mazei is involved in biosynthesis of
CC       the polyprenyl side-chain of methanophenazine, an electron carrier
CC       utilized for methanogenesis.
CC   -!- It prefers geranylgeranyl diphosphate and farnesyl diphosphate as
CC       allylic substrate.
CC   -!- The enzyme from Aeropyrum pernix prefers farnesyl diphosphate as
CC       allylic substrate.
CC   -!- The enzyme is involved in the biosynthesis of C25-C25 membrane
CC       lipids.
CC   -!- Formerly EC 2.5.1.n2.
DR   P9WEP0, AUAS_ASPUT ;  N4V6D4, BTCA_COLOR ;  A0A2Z6FZ31, BTCA_NEOBT ;
DR   A0A169T193, EVAS_EMEVA ;  A0A0U3BRC5, GFDPS_LEUCN;  Q9UWR6, GFPS_AERPX ;
DR   Q8PYS1, GFPS_METMA ;  Q3IPL1, GFPS_NATPD ;  A1DN30, NFSS_NEOFI ;
DR   A0A0U5G0B1, OBLA_ASPCI ;  A1C8C3, OBLA_ASPCL ;  M2V8C1, OBLA_COCH5 ;
DR   A0A1V1FVQ6, OBLA_EMEVA ;  A0A2Z6AQX7, PBSS_PENBI ;  A0A2Z6AQX6, PVPS_TALVE ;
DR   M2U578, TPCA_COCH5 ;
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