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_scaffold000450124150.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000450124150.1
AtriAmTr_v1.0_scaffold000450124160.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000450124160.1
AtriAmTr_v1.0_scaffold000450124270.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000450124270.1
AtriAmTr_v1.0_scaffold000450124370.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000450124370.1
AtriAmTr_v1.0_scaffold000450124900.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000450124900.1
AtriAmTr_v1.0_scaffold000450125630.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000450125630.1
AtriAmTr_v1.0_scaffold000470128770.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000470128770.1
AtriAmTr_v1.0_scaffold000470129110.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000470129110.1
AtriAmTr_v1.0_scaffold000470129150.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000470129150.1
AtriAmTr_v1.0_scaffold000470129180.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000470129180.1
AtriAmTr_v1.0_scaffold000470129210.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000470129210.1
AtriAmTr_v1.0_scaffold000470129250.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000470129250.1
AtriAmTr_v1.0_scaffold000470129820.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000470129820.1
AtriAmTr_v1.0_scaffold000470129830.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000470129830.1
AtriAmTr_v1.0_scaffold000470130120.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000470130120.1
AtriAmTr_v1.0_scaffold000470130150.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000470130150.1
AtriAmTr_v1.0_scaffold000470130160.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000470130160.1
AtriAmTr_v1.0_scaffold000480130910.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000480130910.1
AtriAmTr_v1.0_scaffold000480132270.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000480132270.1
AtriAmTr_v1.0_scaffold000490133920.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000490133920.1
AtriAmTr_v1.0_scaffold000490133960.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000490133960.1
AtriAmTr_v1.0_scaffold000490135180.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000490135180.1
AtriAmTr_v1.0_scaffold000500135630.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000500135630.1
AtriAmTr_v1.0_scaffold000520137770.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000520137770.1
AtriAmTr_v1.0_scaffold000530138780.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000530138780.1
AtriAmTr_v1.0_scaffold000530138800.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000530138800.1
AtriAmTr_v1.0_scaffold000560143840.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000560143840.1
AtriAmTr_v1.0_scaffold000560145170.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000560145170.1
AtriAmTr_v1.0_scaffold000570146400.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000570146400.1
AtriAmTr_v1.0_scaffold000570146800.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000570146800.1