PlantSME Plant secondary metabolism enzyme database
Steroid portable pathway

Steroid portable pathway

Category:Steroid pathway

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

Representative Steroid Reaction Route
Squalene to phytosterols and brassinosteroid branch. The steroid route starts from triterpenoid precursors, proceeds through squalene, 2,3-oxidosqualene, and cycloartenol, and then branches toward phytosterols and brassinosteroids; long branches are shown as curated modules.
3 curated steps/modules
Sterol Scaffold Formation
01
Substrate
Farnesyl diphosphate
C15H28O7P2
C15 prenyl-OPP
Squalene synthesis, epoxidation, and cyclization
Product
Cycloartenol
C30H50O
tetracyclic sterol nucleus with cyclopropyl side
SQS/SQE/CAS convert FPP-derived linear triterpenes into the plant sterol core.
02
Substrate
Cycloartenol-series intermediates
C28-C30 sterols
tetracyclic sterol nucleus
Demethylation, reduction, and side-chain remodeling
Product
Phytosterols
C28H48O / C29H50O
sterol nucleus-C8/C9 side chain
This segment converts cycloartenol-series intermediates into phytosterol pools such as sitosterol and campesterol.
Brassinosteroid Branch
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.
Lineage Summary
Module Gene List
Reset
GeneSpeciesProtein ID
annona_cherimola_Anche102Chr6g0090720.1 annona_cherimola annona_cherimola_Anche102Chr6g0090720.1
annona_cherimola_Anche102Chr6g0090740.1 annona_cherimola annona_cherimola_Anche102Chr6g0090740.1
annona_cherimola_Anche102Chr6g0090770.1 annona_cherimola annona_cherimola_Anche102Chr6g0090770.1
annona_cherimola_Anche102Chr6g0090790.1 annona_cherimola annona_cherimola_Anche102Chr6g0090790.1
annona_cherimola_Anche102Chr6g0090800.1 annona_cherimola annona_cherimola_Anche102Chr6g0090800.1
annona_cherimola_Anche102Chr6g0090820.1 annona_cherimola annona_cherimola_Anche102Chr6g0090820.1
annona_cherimola_Anche102Chr6g0090850.1 annona_cherimola annona_cherimola_Anche102Chr6g0090850.1
annona_cherimola_Anche102Chr6g0090870.1 annona_cherimola annona_cherimola_Anche102Chr6g0090870.1
annona_cherimola_Anche102Chr6g0090880.1 annona_cherimola annona_cherimola_Anche102Chr6g0090880.1
annona_cherimola_Anche102Chr6g0091000.1 annona_cherimola annona_cherimola_Anche102Chr6g0091000.1
annona_cherimola_Anche102Chr6g0091010.1 annona_cherimola annona_cherimola_Anche102Chr6g0091010.1
annona_cherimola_Anche102Chr6g0091360.1 annona_cherimola annona_cherimola_Anche102Chr6g0091360.1
annona_cherimola_Anche102Chr6g0091580.1 annona_cherimola annona_cherimola_Anche102Chr6g0091580.1
annona_cherimola_Anche102Chr6g0095820.1 annona_cherimola annona_cherimola_Anche102Chr6g0095820.1
annona_cherimola_Anche102Chr6g0096060.1 annona_cherimola annona_cherimola_Anche102Chr6g0096060.1
annona_cherimola_Anche102Chr6g0096070.1 annona_cherimola annona_cherimola_Anche102Chr6g0096070.1
annona_cherimola_Anche102Chr7g0000100.1 annona_cherimola annona_cherimola_Anche102Chr7g0000100.1
annona_cherimola_Anche102Chr7g0006930.1 annona_cherimola annona_cherimola_Anche102Chr7g0006930.1
annona_cherimola_Anche102Chr7g0007190.1 annona_cherimola annona_cherimola_Anche102Chr7g0007190.1
annona_cherimola_Anche102Chr7g0039850.1 annona_cherimola annona_cherimola_Anche102Chr7g0039850.1
annona_cherimola_Anche102Chr7g0044030.1 annona_cherimola annona_cherimola_Anche102Chr7g0044030.1
annona_cherimola_Anche102Chr7g0044040.1 annona_cherimola annona_cherimola_Anche102Chr7g0044040.1
annona_cherimola_Anche102Chr7g0044060.1 annona_cherimola annona_cherimola_Anche102Chr7g0044060.1
annona_cherimola_Anche102Chr7g0044080.1 annona_cherimola annona_cherimola_Anche102Chr7g0044080.1
annona_cherimola_Anche102Chr7g0044090.1 annona_cherimola annona_cherimola_Anche102Chr7g0044090.1
annona_cherimola_Anche102Chr7g0044200.1 annona_cherimola annona_cherimola_Anche102Chr7g0044200.1
annona_cherimola_Anche102Chr7g0044210.1 annona_cherimola annona_cherimola_Anche102Chr7g0044210.1
annona_cherimola_Anche102Chr7g0044220.1 annona_cherimola annona_cherimola_Anche102Chr7g0044220.1
annona_cherimola_Anche102Chr7g0054540.1 annona_cherimola annona_cherimola_Anche102Chr7g0054540.1
annona_cherimola_Anche102Chr7g0054550.1 annona_cherimola annona_cherimola_Anche102Chr7g0054550.1