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_Anche102Chr3g0006160.1 annona_cherimola annona_cherimola_Anche102Chr3g0006160.1
annona_cherimola_Anche102Chr3g0041470.1 annona_cherimola annona_cherimola_Anche102Chr3g0041470.1
annona_cherimola_Anche102Chr3g0045380.1 annona_cherimola annona_cherimola_Anche102Chr3g0045380.1
annona_cherimola_Anche102Chr3g0045410.1 annona_cherimola annona_cherimola_Anche102Chr3g0045410.1
annona_cherimola_Anche102Chr3g0045420.1 annona_cherimola annona_cherimola_Anche102Chr3g0045420.1
annona_cherimola_Anche102Chr3g0045480.1 annona_cherimola annona_cherimola_Anche102Chr3g0045480.1
annona_cherimola_Anche102Chr3g0060010.1 annona_cherimola annona_cherimola_Anche102Chr3g0060010.1
annona_cherimola_Anche102Chr3g0061430.1 annona_cherimola annona_cherimola_Anche102Chr3g0061430.1
annona_cherimola_Anche102Chr3g0061470.1 annona_cherimola annona_cherimola_Anche102Chr3g0061470.1
annona_cherimola_Anche102Chr3g0061490.1 annona_cherimola annona_cherimola_Anche102Chr3g0061490.1
annona_cherimola_Anche102Chr3g0061810.1 annona_cherimola annona_cherimola_Anche102Chr3g0061810.1
annona_cherimola_Anche102Chr3g0061820.1 annona_cherimola annona_cherimola_Anche102Chr3g0061820.1
annona_cherimola_Anche102Chr4g0032510.1 annona_cherimola annona_cherimola_Anche102Chr4g0032510.1
annona_cherimola_Anche102Chr4g0038090.1 annona_cherimola annona_cherimola_Anche102Chr4g0038090.1
annona_cherimola_Anche102Chr4g0038370.1 annona_cherimola annona_cherimola_Anche102Chr4g0038370.1
annona_cherimola_Anche102Chr4g0039420.1 annona_cherimola annona_cherimola_Anche102Chr4g0039420.1
annona_cherimola_Anche102Chr4g0040180.1 annona_cherimola annona_cherimola_Anche102Chr4g0040180.1
annona_cherimola_Anche102Chr4g0040460.1 annona_cherimola annona_cherimola_Anche102Chr4g0040460.1
annona_cherimola_Anche102Chr4g0040510.1 annona_cherimola annona_cherimola_Anche102Chr4g0040510.1
annona_cherimola_Anche102Chr4g0040790.1 annona_cherimola annona_cherimola_Anche102Chr4g0040790.1
annona_cherimola_Anche102Chr4g0040940.1 annona_cherimola annona_cherimola_Anche102Chr4g0040940.1
annona_cherimola_Anche102Chr4g0041640.1 annona_cherimola annona_cherimola_Anche102Chr4g0041640.1
annona_cherimola_Anche102Chr4g0041650.1 annona_cherimola annona_cherimola_Anche102Chr4g0041650.1
annona_cherimola_Anche102Chr4g0041690.1 annona_cherimola annona_cherimola_Anche102Chr4g0041690.1
annona_cherimola_Anche102Chr4g0042280.1 annona_cherimola annona_cherimola_Anche102Chr4g0042280.1
annona_cherimola_Anche102Chr4g0042320.1 annona_cherimola annona_cherimola_Anche102Chr4g0042320.1
annona_cherimola_Anche102Chr4g0042330.1 annona_cherimola annona_cherimola_Anche102Chr4g0042330.1
annona_cherimola_Anche102Chr4g0049260.1 annona_cherimola annona_cherimola_Anche102Chr4g0049260.1
annona_cherimola_Anche102Chr4g0049540.1 annona_cherimola annona_cherimola_Anche102Chr4g0049540.1
annona_cherimola_Anche102Chr4g0052750.1 annona_cherimola annona_cherimola_Anche102Chr4g0052750.1