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_Brsc08g1407.t1 brasenia_schreberi brasenia_schreberi_Brsc08g1407.t1
brasenia_schreberi_Brsc08g1408.t1 brasenia_schreberi brasenia_schreberi_Brsc08g1408.t1
brasenia_schreberi_Brsc08g1691.t1 brasenia_schreberi brasenia_schreberi_Brsc08g1691.t1
brasenia_schreberi_Brsc08g1696.t1 brasenia_schreberi brasenia_schreberi_Brsc08g1696.t1
brasenia_schreberi_Brsc08g2117.t1 brasenia_schreberi brasenia_schreberi_Brsc08g2117.t1
brasenia_schreberi_Brsc08g2250.t1 brasenia_schreberi brasenia_schreberi_Brsc08g2250.t1
brasenia_schreberi_Brsc08g2274.t1 brasenia_schreberi brasenia_schreberi_Brsc08g2274.t1
brasenia_schreberi_Brsc09g0398.t1 brasenia_schreberi brasenia_schreberi_Brsc09g0398.t1
brasenia_schreberi_Brsc09g0427.t1 brasenia_schreberi brasenia_schreberi_Brsc09g0427.t1
brasenia_schreberi_Brsc09g0810.t1 brasenia_schreberi brasenia_schreberi_Brsc09g0810.t1
brasenia_schreberi_Brsc09g1102.t1 brasenia_schreberi brasenia_schreberi_Brsc09g1102.t1
brasenia_schreberi_Brsc09g1222.t4 brasenia_schreberi brasenia_schreberi_Brsc09g1222.t4
brasenia_schreberi_Brsc09g1391.t3 brasenia_schreberi brasenia_schreberi_Brsc09g1391.t3
brasenia_schreberi_Brsc09g1753.t2 brasenia_schreberi brasenia_schreberi_Brsc09g1753.t2
brasenia_schreberi_Brsc09g2871.t1 brasenia_schreberi brasenia_schreberi_Brsc09g2871.t1
brasenia_schreberi_Brsc1056s3.t1 brasenia_schreberi brasenia_schreberi_Brsc1056s3.t1
brasenia_schreberi_Brsc10g0144.t1 brasenia_schreberi brasenia_schreberi_Brsc10g0144.t1
brasenia_schreberi_Brsc10g1100.t2 brasenia_schreberi brasenia_schreberi_Brsc10g1100.t2
brasenia_schreberi_Brsc10g1800.t1 brasenia_schreberi brasenia_schreberi_Brsc10g1800.t1
brasenia_schreberi_Brsc11g0817.t1 brasenia_schreberi brasenia_schreberi_Brsc11g0817.t1
brasenia_schreberi_Brsc11g1018.t1 brasenia_schreberi brasenia_schreberi_Brsc11g1018.t1
brasenia_schreberi_Brsc11g1219.t1 brasenia_schreberi brasenia_schreberi_Brsc11g1219.t1
brasenia_schreberi_Brsc11g1220.t2 brasenia_schreberi brasenia_schreberi_Brsc11g1220.t2
brasenia_schreberi_Brsc11g1299.t1 brasenia_schreberi brasenia_schreberi_Brsc11g1299.t1
brasenia_schreberi_Brsc12g0830.t1 brasenia_schreberi brasenia_schreberi_Brsc12g0830.t1
brasenia_schreberi_Brsc12g1412.t2 brasenia_schreberi brasenia_schreberi_Brsc12g1412.t2
brasenia_schreberi_Brsc13g0626.t1 brasenia_schreberi brasenia_schreberi_Brsc13g0626.t1
brasenia_schreberi_Brsc13g0721.t1 brasenia_schreberi brasenia_schreberi_Brsc13g0721.t1
brasenia_schreberi_Brsc13g0722.t1 brasenia_schreberi brasenia_schreberi_Brsc13g0722.t1
brasenia_schreberi_Brsc13g0723.t1 brasenia_schreberi brasenia_schreberi_Brsc13g0723.t1