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/FDFT1638 SQE185 CAS2570
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/SMT31757 SMO1/SMO21119 CPI1170 CYP51G1313 FK164 HYD1184 DWF71136 DWF5419 DWF1227
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 Bryophytes (9925)
Current lineage filter: Bryophytes. All species, family, module, and gene statistics below have been narrowed to this lineage.
Algae
Hits0
Bryophytes
Hits9925
Lycophytes/Ferns
Hits0
Gymnosperms
Hits0
Basal angiosperms
Hits0
Monocots
Hits0
Eudicots
Hits0
Species Distribution
Bryum knowltonii
Anthoceros agrestis Oxford
Funaria hygrometrica
Buxbaumia aphylla
Anthoceros punctatus
Calliergon cordifolium
Archidium alternifolium
Fossombronia
Fissidens javanicus
Andreaea rupestris
Lineage Summary
Bryophytes
9925
Module Gene List
Reset
GeneSpeciesProtein ID
GobtHiC_scaffold_90295880 grimmia_obtusifolia GobtHiC_scaffold_90295880
GobtHiC_scaffold_90299680 grimmia_obtusifolia GobtHiC_scaffold_90299680
GobtHiC_scaffold_90300440 grimmia_obtusifolia GobtHiC_scaffold_90300440
Haplomitrium10054130001540 haplomitrium Haplomitrium10054130001540
Haplomitrium10206040008770 haplomitrium Haplomitrium10206040008770
Haplomitrium10219670009470 haplomitrium Haplomitrium10219670009470
Haplomitrium10252800012810 haplomitrium Haplomitrium10252800012810
Haplomitrium10281050015610 haplomitrium Haplomitrium10281050015610
Haplomitrium10305670017470 haplomitrium Haplomitrium10305670017470
Haplomitrium10370540018820 haplomitrium Haplomitrium10370540018820
Haplomitrium10406650020450 haplomitrium Haplomitrium10406650020450
Haplomitrium10414110021180 haplomitrium Haplomitrium10414110021180
Haplomitrium10451010024060 haplomitrium Haplomitrium10451010024060
Haplomitrium10497800026650 haplomitrium Haplomitrium10497800026650
Haplomitrium10540990032860 haplomitrium Haplomitrium10540990032860
Haplomitrium10562020034610 haplomitrium Haplomitrium10562020034610
Haplomitrium10631450039760 haplomitrium Haplomitrium10631450039760
Haplomitrium10645520041230 haplomitrium Haplomitrium10645520041230
Haplomitrium10659910042400 haplomitrium Haplomitrium10659910042400
Haplomitrium10672880044650 haplomitrium Haplomitrium10672880044650
Haplomitrium10690980047750 haplomitrium Haplomitrium10690980047750
Haplomitrium10743820054360 haplomitrium Haplomitrium10743820054360
Haplomitrium10768800058070 haplomitrium Haplomitrium10768800058070
Haplomitrium10863300077530 haplomitrium Haplomitrium10863300077530
Haplomitrium10865250077840 haplomitrium Haplomitrium10865250077840
Haplomitrium10873270080870 haplomitrium Haplomitrium10873270080870
Haplomitrium10874230081170 haplomitrium Haplomitrium10874230081170
Haplomitrium10882210082820 haplomitrium Haplomitrium10882210082820
Haplomitrium10887120084260 haplomitrium Haplomitrium10887120084260
Haplomitrium10893050086740 haplomitrium Haplomitrium10893050086740