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
brasenia_schreberi_Brsc27g0019.t6 brasenia_schreberi brasenia_schreberi_Brsc27g0019.t6
brasenia_schreberi_Brsc27g0020.t2 brasenia_schreberi brasenia_schreberi_Brsc27g0020.t2
brasenia_schreberi_Brsc27g0353.t1 brasenia_schreberi brasenia_schreberi_Brsc27g0353.t1
brasenia_schreberi_Brsc27g0354.t1 brasenia_schreberi brasenia_schreberi_Brsc27g0354.t1
brasenia_schreberi_Brsc27g0357.t1 brasenia_schreberi brasenia_schreberi_Brsc27g0357.t1
brasenia_schreberi_Brsc27g0358.t1 brasenia_schreberi brasenia_schreberi_Brsc27g0358.t1
brasenia_schreberi_Brsc27g0419.t1 brasenia_schreberi brasenia_schreberi_Brsc27g0419.t1
brasenia_schreberi_Brsc27g0448.t1 brasenia_schreberi brasenia_schreberi_Brsc27g0448.t1
brasenia_schreberi_Brsc27g0551.t1 brasenia_schreberi brasenia_schreberi_Brsc27g0551.t1
brasenia_schreberi_Brsc27g0707.t1 brasenia_schreberi brasenia_schreberi_Brsc27g0707.t1
brasenia_schreberi_Brsc27g0745.t1 brasenia_schreberi brasenia_schreberi_Brsc27g0745.t1
brasenia_schreberi_Brsc27g0983.t3 brasenia_schreberi brasenia_schreberi_Brsc27g0983.t3
brasenia_schreberi_Brsc27g1200.t2 brasenia_schreberi brasenia_schreberi_Brsc27g1200.t2
brasenia_schreberi_Brsc28g0008.t1 brasenia_schreberi brasenia_schreberi_Brsc28g0008.t1
brasenia_schreberi_Brsc28g0396.t1 brasenia_schreberi brasenia_schreberi_Brsc28g0396.t1
brasenia_schreberi_Brsc28g0553.t1 brasenia_schreberi brasenia_schreberi_Brsc28g0553.t1
brasenia_schreberi_Brsc28g0566.t1 brasenia_schreberi brasenia_schreberi_Brsc28g0566.t1
brasenia_schreberi_Brsc28g0915.t1 brasenia_schreberi brasenia_schreberi_Brsc28g0915.t1
brasenia_schreberi_Brsc28g0920.t1 brasenia_schreberi brasenia_schreberi_Brsc28g0920.t1
brasenia_schreberi_Brsc29g0174.t1 brasenia_schreberi brasenia_schreberi_Brsc29g0174.t1
brasenia_schreberi_Brsc29g0175.t1 brasenia_schreberi brasenia_schreberi_Brsc29g0175.t1
brasenia_schreberi_Brsc29g0814.t1 brasenia_schreberi brasenia_schreberi_Brsc29g0814.t1
brasenia_schreberi_Brsc29g1088.t1 brasenia_schreberi brasenia_schreberi_Brsc29g1088.t1
brasenia_schreberi_Brsc30g0328.t1 brasenia_schreberi brasenia_schreberi_Brsc30g0328.t1
brasenia_schreberi_Brsc30g0387.t2 brasenia_schreberi brasenia_schreberi_Brsc30g0387.t2
brasenia_schreberi_Brsc30g0590.t1 brasenia_schreberi brasenia_schreberi_Brsc30g0590.t1
brasenia_schreberi_Brsc30g0622.t1 brasenia_schreberi brasenia_schreberi_Brsc30g0622.t1
brasenia_schreberi_Brsc30g0903.t1 brasenia_schreberi brasenia_schreberi_Brsc30g0903.t1
brasenia_schreberi_Brsc30g1138.t1 brasenia_schreberi brasenia_schreberi_Brsc30g1138.t1
brasenia_schreberi_Brsc30g1196.t3 brasenia_schreberi brasenia_schreberi_Brsc30g1196.t3