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
SQS/FDFT1915 SQE331 CAS8601
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
SMT1/SMT2/SMT38083 SMO1/SMO22312 CPI1249 CYP51G11047 FK217 HYD1371 DWF7910 DWF5109 DWF1377
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.
All Lineages Monocots (25337)
Current lineage filter: Monocots. All species, family, module, and gene statistics below have been narrowed to this lineage.
Algae
Hits0
Bryophytes
Hits0
Lycophytes/Ferns
Hits0
Gymnosperms
Hits0
Basal angiosperms
Hits0
Monocots
Hits25337
Eudicots
Hits0
Species Distribution
Aegilops tauschii
Avena sativa
Hordeum vulgare
Triticum turgidum
Cenchrus fungigraminus
Daemonorops jenkinsiana
Eragrostis nindensis
Triticum aestivum
Eleusine coracana
Panicum virgatum
Lineage Summary
Monocots
25337
Module Gene List
Reset
GeneSpeciesProtein ID
asparagus_kiusianus_K1p1ch01g29355 asparagus_kiusianus asparagus_kiusianus_K1p1ch01g29355
asparagus_kiusianus_K1p1ch01g30374 asparagus_kiusianus asparagus_kiusianus_K1p1ch01g30374
asparagus_kiusianus_K1p1ch01g32359 asparagus_kiusianus asparagus_kiusianus_K1p1ch01g32359
asparagus_kiusianus_K1p1ch01g33377 asparagus_kiusianus asparagus_kiusianus_K1p1ch01g33377
asparagus_kiusianus_K1p1ch01g33882 asparagus_kiusianus asparagus_kiusianus_K1p1ch01g33882
asparagus_kiusianus_K1p1ch01g34522 asparagus_kiusianus asparagus_kiusianus_K1p1ch01g34522
asparagus_kiusianus_K1p1ch02g52866 asparagus_kiusianus asparagus_kiusianus_K1p1ch02g52866
asparagus_kiusianus_K1p1ch02g53062 asparagus_kiusianus asparagus_kiusianus_K1p1ch02g53062
asparagus_kiusianus_K1p1ch02g53164 asparagus_kiusianus asparagus_kiusianus_K1p1ch02g53164
asparagus_kiusianus_K1p1ch02g53441 asparagus_kiusianus asparagus_kiusianus_K1p1ch02g53441
asparagus_kiusianus_K1p1ch02g53450 asparagus_kiusianus asparagus_kiusianus_K1p1ch02g53450
asparagus_kiusianus_K1p1ch02g53746 asparagus_kiusianus asparagus_kiusianus_K1p1ch02g53746
asparagus_kiusianus_K1p1ch02g53820 asparagus_kiusianus asparagus_kiusianus_K1p1ch02g53820
asparagus_kiusianus_K1p1ch02g54804 asparagus_kiusianus asparagus_kiusianus_K1p1ch02g54804
asparagus_kiusianus_K1p1ch02g55015 asparagus_kiusianus asparagus_kiusianus_K1p1ch02g55015
asparagus_kiusianus_K1p1ch02g55133 asparagus_kiusianus asparagus_kiusianus_K1p1ch02g55133
asparagus_kiusianus_K1p1ch02g55277 asparagus_kiusianus asparagus_kiusianus_K1p1ch02g55277
asparagus_kiusianus_K1p1ch02g56013 asparagus_kiusianus asparagus_kiusianus_K1p1ch02g56013
asparagus_kiusianus_K1p1ch02g56292 asparagus_kiusianus asparagus_kiusianus_K1p1ch02g56292
asparagus_kiusianus_K1p1ch03g00101 asparagus_kiusianus asparagus_kiusianus_K1p1ch03g00101
asparagus_kiusianus_K1p1ch03g00663 asparagus_kiusianus asparagus_kiusianus_K1p1ch03g00663
asparagus_kiusianus_K1p1ch03g00916 asparagus_kiusianus asparagus_kiusianus_K1p1ch03g00916
asparagus_kiusianus_K1p1ch03g01124 asparagus_kiusianus asparagus_kiusianus_K1p1ch03g01124
asparagus_kiusianus_K1p1ch03g01282 asparagus_kiusianus asparagus_kiusianus_K1p1ch03g01282
asparagus_kiusianus_K1p1ch03g01710 asparagus_kiusianus asparagus_kiusianus_K1p1ch03g01710
asparagus_kiusianus_K1p1ch03g02537 asparagus_kiusianus asparagus_kiusianus_K1p1ch03g02537
asparagus_kiusianus_K1p1ch03g02666 asparagus_kiusianus asparagus_kiusianus_K1p1ch03g02666
asparagus_kiusianus_K1p1ch03g02835 asparagus_kiusianus asparagus_kiusianus_K1p1ch03g02835
asparagus_kiusianus_K1p1ch03g04129 asparagus_kiusianus asparagus_kiusianus_K1p1ch03g04129
asparagus_kiusianus_K1p1ch03g04192 asparagus_kiusianus asparagus_kiusianus_K1p1ch03g04192