KEGG   ENZYME: 2.5.1.81
Entry
EC 2.5.1.81                 Enzyme                                 
Name
geranylfarnesyl diphosphate synthase;
FGPP synthase;
(all-E) geranylfarnesyl diphosphate synthase;
GFPS;
Fgs
Class
Transferases;
Transferring alkyl or aryl groups, other than methyl groups;
Transferring alkyl or aryl groups, other than methyl groups (only sub-subclass identified to date)
Sysname
geranylgeranyl-diphosphate:isopentenyl-diphosphate transtransferase (adding 1 isopentenyl unit)
Reaction(IUBMB)
geranylgeranyl diphosphate + isopentenyl diphosphate = (2E,6E,10E,14E)-geranylfarnesyl diphosphate + diphosphate [RN:R07475]
Reaction(KEGG)
R07475
Substrate
geranylgeranyl diphosphate [CPD:C00353];
isopentenyl diphosphate [CPD:C00129]
Product
(2E,6E,10E,14E)-geranylfarnesyl diphosphate [CPD:C04217];
diphosphate [CPD:C00013]
Comment
The enzyme from Methanosarcina mazei is involved in biosynthesis of the polyprenyl side-chain of methanophenazine, an electron carrier utilized for methanogenesis. It prefers geranylgeranyl diphosphate and farnesyl diphosphate as allylic substrate [1]. The enzyme from Aeropyrum pernix prefers farnesyl diphosphate as allylic substrate. The enzyme is involved in the biosynthesis of C25-C25 membrane lipids [2].
History
EC 2.5.1.81 created 2010
Reference
1  [PMID:20097171]
  Authors
Ogawa T, Yoshimura T, Hemmi H
  Title
Geranylfarnesyl diphosphate synthase from Methanosarcina mazei: Different role, different evolution.
  Journal
Biochem Biophys Res Commun 393:16-20 (2010)
DOI:10.1016/j.bbrc.2010.01.063
  Sequence
[mma:MM_0789]
Reference
2  [PMID:10632701]
  Authors
Tachibana A, Yano Y, Otani S, Nomura N, Sako Y, Taniguchi M
  Title
Novel prenyltransferase gene encoding farnesylgeranyl diphosphate synthase from a hyperthermophilic archaeon, Aeropyrum pernix. Molecularevolution with alteration in product specificity.
  Journal
Eur J Biochem 267:321-8 (2000)
DOI:10.1046/j.1432-1327.2000.00967.x
  Sequence
Reference
3  [PMID:8137956]
  Authors
Tachibana A
  Title
A novel prenyltransferase, farnesylgeranyl diphosphate synthase, from the haloalkaliphilic archaeon, Natronobacterium pharaonis.
  Journal
FEBS Lett 341:291-4 (1994)
DOI:10.1016/0014-5793(94)80475-3
  Sequence
[nph:NP_3696A]
Reference
4  [PMID:15548566]
  Authors
Lee PC, Mijts BN, Petri R, Watts KT, Schmidt-Dannert C
  Title
Alteration of product specificity of Aeropyrum pernix farnesylgeranyl diphosphate synthase (Fgs) by directed evolution.
  Journal
Protein Eng Des Sel 17:771-7 (2004)
DOI:10.1093/protein/gzh089
  Sequence
Other DBs
ExplorEnz - The Enzyme Database: 2.5.1.81
IUBMB Enzyme Nomenclature: 2.5.1.81
ExPASy - ENZYME nomenclature database: 2.5.1.81
BRENDA, the Enzyme Database: 2.5.1.81
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