PlantSME Plant secondary metabolism enzyme database
Terpenoid portable pathway

Terpenoid portable pathway

Terpenoid pathway definition imported from the 2026-05-17 portable BLAST/HMM package.

Representative Terpenoid Reaction Route
MVA/MEP precursor branches to triterpenoid scaffolds, terpene scaffolds, and tailoring. Terpenoids draw IPP/DMAPP from MVA and MEP branches before prenyl extension and TPS branching; SQS/SQE/OSC form a triterpenoid/sterol precursor layer whose overlap with the steroid library is expected.
6 curated steps/modules
MVA And MEP Precursor Supply
01
Substrate
Acetyl-CoA
C23H38N7O17P3S
CH3-C(=O)-SCoA
Acetyl-CoA to IPP through the mevalonate branch
Product
Isopentenyl diphosphate
C5H12O7P2
CH2=C(CH3)-CH2-CH2-OPP
The MVA branch supplies isoprene units for sesquiterpenoid, triterpenoid, and sterol-related metabolism.
02
Substrate
Pyruvate + glyceraldehyde-3-phosphate
C3 + C3 phosphates
CH3-CO-COO- + OHC-CHOH-CH2O-P
Pyruvate/G3P to IPP/DMAPP through the MEP branch
Product
IPP/DMAPP
C5H12O7P2
C5 isoprenyl diphosphates
The MEP branch mainly supplies precursors for monoterpenes, diterpenes, and plastidial terpenoids.
Prenyl Extension, Scaffold Formation, And Tailoring
03
Substrate
IPP/DMAPP
C5H12O7P2
C5 isoprenyl diphosphates
Isomerization and prenyl diphosphate extension
Product
GPP/FPP/GGPP
C10/C15/C20 diphosphates
prenyl-(C5)n-OPP
IDI and prenyltransferases generate GPP/FPP/GGPP substrates for TPS enzymes.
04
Substrate
FPP/squalene/2,3-oxidosqualene
C15/C30 precursors
linear isoprenoid precursor
Triterpenoid/sterol precursor scaffold formation
Product
Triterpenoid/sterol precursor scaffolds
C30 scaffolds
cyclized triterpenoid scaffold
SQS, SQE, and OSC-family enzymes convert FPP-derived linear triterpenoid precursors into oxidosqualene cyclization products, forming a shared upstream layer for triterpenoid and sterol contexts.
05
Substrate
Prenyl diphosphates
C10/C15/C20
allylic polyisoprenyl-OPP
Terpene scaffold cyclization/rearrangement
Product
Terpene scaffolds
C10/C15/C20 hydrocarbons
cyclic/acyclic isoprenoid skeletons
TPS enzymes form terpene carbon scaffolds and act as central diversification points.
06
Substrate
Terpene scaffolds
C10-C20
isoprenoid hydrocarbon/oxygenated skeleton
Oxidation, glycosylation, and acylation tailoring
Product
Tailored terpenoids
oxygenated/glycosylated/acylated terpenoids
terpene-OH / terpene-O-Glc / terpene-O-acyl
CYP/UGT/BAHD tailoring shapes polarity, storage form, and functional diversity of terpenoid products.
Lineage Distribution
Assignments under this module are distributed across the following plant lineages.
Current lineage filter: Basal angiosperms. All species, family, module, and gene statistics below have been narrowed to this lineage.
Module Gene List
Reset
GeneSpeciesProtein ID
AtriAmTr_v1.0_scaffold001360231530.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001360231530.1
AtriAmTr_v1.0_scaffold001370231650.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001370231650.1
AtriAmTr_v1.0_scaffold001370231920.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001370231920.1
AtriAmTr_v1.0_scaffold001380232490.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001380232490.1
AtriAmTr_v1.0_scaffold001380232500.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001380232500.1
AtriAmTr_v1.0_scaffold001400233450.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001400233450.1
AtriAmTr_v1.0_scaffold001430234860.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001430234860.1
AtriAmTr_v1.0_scaffold001460236200.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001460236200.1
AtriAmTr_v1.0_scaffold001460236490.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001460236490.1
AtriAmTr_v1.0_scaffold001540240630.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001540240630.1
AtriAmTr_v1.0_scaffold001550241760.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001550241760.1
AtriAmTr_v1.0_scaffold001550241770.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001550241770.1
AtriAmTr_v1.0_scaffold001550241780.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001550241780.1
AtriAmTr_v1.0_scaffold001630244530.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001630244530.1
AtriAmTr_v1.0_scaffold001650245120.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001650245120.1
AtriAmTr_v1.0_scaffold001650245130.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001650245130.1
AtriAmTr_v1.0_scaffold001650245140.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001650245140.1
AtriAmTr_v1.0_scaffold001650245150.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001650245150.1
AtriAmTr_v1.0_scaffold001650245160.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001650245160.1
AtriAmTr_v1.0_scaffold001650245170.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001650245170.1
AtriAmTr_v1.0_scaffold001650245180.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001650245180.1
AtriAmTr_v1.0_scaffold001650245190.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001650245190.1
AtriAmTr_v1.0_scaffold001650245200.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001650245200.1
AtriAmTr_v1.0_scaffold001650245210.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001650245210.1
AtriAmTr_v1.0_scaffold001650245220.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001650245220.1
AtriAmTr_v1.0_scaffold001690246620.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001690246620.1
AtriAmTr_v1.0_scaffold001690246630.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001690246630.1
AtriAmTr_v1.0_scaffold001690246640.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001690246640.1
AtriAmTr_v1.0_scaffold001690246650.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001690246650.1
AtriAmTr_v1.0_scaffold001690246660.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001690246660.1