PATHWAY: rn00900 Help
Entry
Name
Terpenoid backbone biosynthesis
Description
Terpenoids, also known as isoprenoids, are a large class of natural products consisting of isoprene (C5) units. There are two biosynthetic pathways, the mevalonate pathway [MD:
M00095 ] and the non-mevalonate pathway or the MEP/DOXP pathway [MD:
M00096 ], for the terpenoid building blocks: isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP). The action of prenyltransferases then generates higher-order building blocks: geranyl diphosphate (GPP), farsenyl diphosphate (FPP), and geranylgeranyl diphosphate (GGPP), which are the precursors of monoterpenoids (C10), sesquiterpenoids (C15), and diterpenoids (C20), respectively. Condensation of these building blocks gives rise to the precursors of sterols (C30) and carotenoids (C40). The MEP/DOXP pathway is absent in higher animals and fungi, but in green plants the MEP/DOXP and mevalonate pathways co-exist in separate cellular compartments. The MEP/DOXP pathway, operating in the plastids, is responsible for the formation of essential oil monoterpenes and linalyl acetate, some sesquiterpenes, diterpenes, and carotenoids and phytol. The mevalonate pathway, operating in the cytosol, gives rise to triterpenes, sterols, and most sesquiterpenes.
Class
Metabolism; Metabolism of terpenoids and polyketides
Pathway map
rn00900 Terpenoid backbone biosynthesis
Module
M00095 C5 isoprenoid biosynthesis, mevalonate pathway [PATH:rn00900 ]
M00096 C5 isoprenoid biosynthesis, non-mevalonate pathway [PATH:rn00900 ]
M00367 C10-C20 isoprenoid biosynthesis, non-plant eukaryotes [PATH:rn00900 ]
M00849 C5 isoprenoid biosynthesis, mevalonate pathway, archaea [PATH:rn00900 ]
Other DBs
Reaction
R00238 acetyl-CoA:acetyl-CoA C-acetyltransferase
R01121 ATP:(R)-5-diphosphomevalonate carboxy-lyase (adding ATP; isopentenyl-diphosphate-forming); ATP:(R)-5-diphosphomevalonate carboxy-lyase (dehydrating)
R01123 isopentenyl-diphosphate Delta3-Delta2-isomerase
R01658 dimethylallyl-diphosphate:isopentenyl-diphosphate dimethylallyltranstransferase
R01978 acetyl-CoA:acetoacetyl-CoA C-acetyltransferase (thioester-hydrolysing, carboxymethyl-forming)
R02003 geranyl-diphosphate:isopentenyl-diphosphate geranyltrans-transferase
R02061 trans,trans-farnesyl-diphosphate:isopentenyl-diphosphate farnesyltranstransferase
R02063 geranylgeranyl reductase
R02081 (R)-mevalonate:NAD+ oxidoreductase (CoA-acetylating)
R02082 (R)-mevalonate:NADP+ oxidoreductase (CoA acylating)
R02245 ATP:(R)-mevalonate 5-phosphotransferase
R03245 ATP:(R)-5-phosphomevalonate phosphotransferase
R03264 2-trans,6-trans-farnesol:NADP+ 1-oxidoreductase
R03917 poly-cis-polyprenyl-diphosphate:isopentenyl-diphosphate polyprenylcistransferase
R04496 S-adenosyl-L-methionine:protein-C-terminal-S-farnesyl-L-cysteine O-methyltransferase
R05556 (2E,6E)-farnesyl-diphosphate:isopentenyl-diphosphate cistransferase (adding 10-55 isopentenyl units)
R05633 CTP: 2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase
R05634 ATP:4-(cytidine 5'-diphospho)-2-C-methyl-D-erythritol 2-phosphotransferase
R05636 1-deoxy-D-xylulose-5-phosphate pyruvate-lyase (carboxylating)
R05637 2-phospho-4-(cytidine 5'-diphospho)-2-C-methyl-D-erythritol CMP-lyase (cyclizing)
R05688 1-deoxy-D-xylulose-5-phosphate isomeroreductase
R05884 isopentenyl-diphosphate:ferredoxin oxidoreductase
R06447 (2E,6E)-farnesyl-diphosphate:isopentenyl-diphosphate cistransferase (adding 8 isopentenyl units)
R07475 geranylgeranyl-diphosphate:isopentenyl-diphosphate transtransferase
R08199 dimethylallyl-diphosphate diphosphate-lyase (isoprene-forming)
R08210 dimethylallyl diphosphate:ferredoxin oxidoreductase
R08528 Z-farnesyl diphosphate synthase
R08689 (E)-4-hydroxy-3-methylbut-2-en-1-yl-diphosphate:oxidized ferredoxin oxidoreductase (hydrating)
R08697 trans,trans-farnesyl-diphosphate diphosphohydrolase; (2E,6E)-farnesyl-diphosphate diphosphohydrolase
R09244 (2Z,6E)-farnesyl-diphosphate:isopentenyl-diphosphate farnesylcistransferase (adding 7 isopentenyl units)
R09245 (2E,6E)-farnesyl-diphosphate:isopentenyl-diphosphate farnesyltranstransferase (adding 3 isopentenyl units)
R09246 geranylgeranyl-diphosphate:isopentenyl-diphosphate transferase (adding 2 isopentenyl units)
R09247 (2E,6E)-farnesyl-diphosphate:isopentenyl-diphosphate farnesyltranstransferase (adding 4 isopentenyl units)
R09248 (2E,6E)-farnesyl-diphosphate:isopentenyl-diphosphate farnesyltranstransferase (adding 5 isopentenyl units)
R09249 (2E,6E)-farnesyl-diphosphate:isopentenyl-diphosphate farnesyltranstransferase (adding 7 isopentenyl units)
R09250 geranyl-diphosphate:isopentenyl-diphosphate transtransferase (adding 7 isopentenyl units)
R09251 geranylgeranyl-diphosphate:isopentenyl-diphosphate transtransferase (adding 5 isopentenyl units)
R09562 S-(2E,6E)-farnesyl-L-cysteine oxidase
R09633 dimethylallyl-diphosphate:isopentenyl-diphosphate cistransferase (adding 2 isopentenyl units)
R09730 geranylgeranyl-diphosphate:isopentenyl-diphosphate cistransferase (adding 7 isopentenyl units)
R09731 (2Z,6E)-farnesyl-diphosphate:isopentenyl-diphosphate cistransferase (adding 9-11 isopentenyl units)
R09844 farnesyl-diphosphate:protein-cysteine farnesyltransferase
R09846 prenylcycteine methylesterase
R09849 CTP:2-trans,6-trans-farnesol O-phosphotransferase
R09850 CTP:farnesyl-phosphate phosphotransferase
R10093 ATP:isopentenyl phosphate phosphotransferase
R10412 (2E,6E)-farnesol:NAD+ 1-oxidoreductase
R10561 ATP:phosphomevalonate carboxy-lyase (adding ATP; isopentenyl-phosphate-forming)
R10779 ATP:(R)-mevalonate 3-phosphotransferase
R10780 ATP:(R)-3-phosphomevalonate 5-phosphotransferase
R10781 (R)-3,5-bisphosphomevalonate carboxy-lyase (isopentenyl-phosphate-forming)
R10859 (E)-4-hydroxy-3-methylbut-2-en-1-yl-diphosphate:oxidized flavodoxin oxidoreductase
R12894 (R)-5-phosphomevalonate hydro-lyase
R12895 trans-anhydromevalonate 5-phosphate carboxy-lyase; (2E)-3-methyl-5-phosphooxypent-2-enoate carboxy-lyase
Compound
C00118 D-Glyceraldehyde 3-phosphate
C00129 Isopentenyl diphosphate
C00235 Dimethylallyl diphosphate
C00353 Geranylgeranyl diphosphate
C00356 (S)-3-Hydroxy-3-methylglutaryl-CoA
C00448 trans,trans-Farnesyl diphosphate
C01107 (R)-5-Phosphomevalonate
C01143 (R)-5-Diphosphomevalonate
C01230 all-trans-Hexaprenyl diphosphate
C03461 2-trans,6-trans-Farnesal
C04145 all-trans-Nonaprenyl diphosphate
C04146 all-trans-Octaprenyl diphosphate
C04216 all-trans-Heptaprenyl diphosphate
C04217 all-trans-Pentaprenyl diphosphate
C04506 Protein C-terminal S-farnesyl-L-cysteine
C04574 di-trans,poly-cis-Undecaprenyl diphosphate
C04748 Protein C-terminal S-farnesyl-L-cysteine methyl ester
C05859 ditrans,polycis-Polyprenyl diphosphate
C11434 2-C-Methyl-D-erythritol 4-phosphate
C11435 4-(Cytidine 5'-diphospho)-2-C-methyl-D-erythritol
C11436 2-Phospho-4-(cytidine 5'-diphospho)-2-C-methyl-D-erythritol
C11437 1-Deoxy-D-xylulose 5-phosphate
C11453 2-C-Methyl-D-erythritol 2,4-cyclodiphosphate
C11811 1-Hydroxy-2-methyl-2-butenyl 4-diphosphate
C16826 2-cis,6-trans-Farnesyl diphosphate
C17432 all-trans-Decaprenyl diphosphate
C18321 trans,octacis-Decaprenyl diphosphate
C19760 2-cis,6-cis-Farnesyl diphosphate
C19852 tritrans,heptacis-Undecaprenyl diphosphate
C19853 trans,polycis-Polyprenyl diphosphate
C20121 trans,trans-Farnesyl phosphate
C20847 (R)-Mevalonate 3-phosphate
C20848 (R)-Mevalonate 3,5-bisphosphate
C22453 trans-Anhydromevalonate 5-phosphate
Reference
Authors
Lange BM, Ghassemian M.
Title
Genome organization in Arabidopsis thaliana: a survey for genes involved in isoprenoid and chlorophyll metabolism.
Journal
Reference
Authors
Saiki R, Nagata A, Kainou T, Matsuda H, Kawamukai M
Title
Characterization of solanesyl and decaprenyl diphosphate synthases in mice and humans.
Journal
Reference
Authors
Sato M, Sato K, Nishikawa S, Hirata A, Kato J, Nakano A
Title
The yeast RER2 gene, identified by endoplasmic reticulum protein localization mutations, encodes cis-prenyltransferase, a key enzyme in dolichol synthesis.
Journal
Reference
Authors
Vannice JC, Skaff DA, Keightley A, Addo JK, Wyckoff GJ, Miziorko HM
Title
Identification in Haloferax volcanii of phosphomevalonate decarboxylase and isopentenyl phosphate kinase as catalysts of the terminal enzyme reactions in an archaeal alternate mevalonate pathway.
Journal
Related pathway
rn00010 Glycolysis / Gluconeogenesis
rn00130 Ubiquinone and other terpenoid-quinone biosynthesis
rn00270 Cysteine and methionine metabolism
rn00403 Indole diterpene alkaloid biosynthesis
rn00909 Sesquiterpenoid and triterpenoid biosynthesis
KO pathway