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_Brsc14g0106.t6 brasenia_schreberi brasenia_schreberi_Brsc14g0106.t6
brasenia_schreberi_Brsc14g0230.t1 brasenia_schreberi brasenia_schreberi_Brsc14g0230.t1
brasenia_schreberi_Brsc14g0967.t1 brasenia_schreberi brasenia_schreberi_Brsc14g0967.t1
brasenia_schreberi_Brsc14g1565.t1 brasenia_schreberi brasenia_schreberi_Brsc14g1565.t1
brasenia_schreberi_Brsc14g1577.t2 brasenia_schreberi brasenia_schreberi_Brsc14g1577.t2
brasenia_schreberi_Brsc14g1782.t7 brasenia_schreberi brasenia_schreberi_Brsc14g1782.t7
brasenia_schreberi_Brsc15g1001.t1 brasenia_schreberi brasenia_schreberi_Brsc15g1001.t1
brasenia_schreberi_Brsc15g1120.t1 brasenia_schreberi brasenia_schreberi_Brsc15g1120.t1
brasenia_schreberi_Brsc15g1351.t2 brasenia_schreberi brasenia_schreberi_Brsc15g1351.t2
brasenia_schreberi_Brsc15g1495.t1 brasenia_schreberi brasenia_schreberi_Brsc15g1495.t1
brasenia_schreberi_Brsc15g1699.t1 brasenia_schreberi brasenia_schreberi_Brsc15g1699.t1
brasenia_schreberi_Brsc16g0008.t1 brasenia_schreberi brasenia_schreberi_Brsc16g0008.t1
brasenia_schreberi_Brsc16g0300.t1 brasenia_schreberi brasenia_schreberi_Brsc16g0300.t1
brasenia_schreberi_Brsc16g0967.t1 brasenia_schreberi brasenia_schreberi_Brsc16g0967.t1
brasenia_schreberi_Brsc16g1298.t5 brasenia_schreberi brasenia_schreberi_Brsc16g1298.t5
brasenia_schreberi_Brsc17g0741.t1 brasenia_schreberi brasenia_schreberi_Brsc17g0741.t1
brasenia_schreberi_Brsc17g1184.t1 brasenia_schreberi brasenia_schreberi_Brsc17g1184.t1
brasenia_schreberi_Brsc1879s05.t1 brasenia_schreberi brasenia_schreberi_Brsc1879s05.t1
brasenia_schreberi_Brsc18g0094.t1 brasenia_schreberi brasenia_schreberi_Brsc18g0094.t1
brasenia_schreberi_Brsc18g0373.t1 brasenia_schreberi brasenia_schreberi_Brsc18g0373.t1
brasenia_schreberi_Brsc18g0375.t1 brasenia_schreberi brasenia_schreberi_Brsc18g0375.t1
brasenia_schreberi_Brsc1919s3.t1 brasenia_schreberi brasenia_schreberi_Brsc1919s3.t1
brasenia_schreberi_Brsc19g0101.t1 brasenia_schreberi brasenia_schreberi_Brsc19g0101.t1
brasenia_schreberi_Brsc19g0151.t1 brasenia_schreberi brasenia_schreberi_Brsc19g0151.t1
brasenia_schreberi_Brsc19g0389.t3 brasenia_schreberi brasenia_schreberi_Brsc19g0389.t3
brasenia_schreberi_Brsc19g0668.t1 brasenia_schreberi brasenia_schreberi_Brsc19g0668.t1
brasenia_schreberi_Brsc19g0692.t2 brasenia_schreberi brasenia_schreberi_Brsc19g0692.t2
brasenia_schreberi_Brsc19g0859.t1 brasenia_schreberi brasenia_schreberi_Brsc19g0859.t1
brasenia_schreberi_Brsc19g0906.t2 brasenia_schreberi brasenia_schreberi_Brsc19g0906.t2
brasenia_schreberi_Brsc19g0914.t4 brasenia_schreberi brasenia_schreberi_Brsc19g0914.t4