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/FDFT190 SQE37 CAS726
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/SMT3593 SMO1/SMO2208 CPI118 CYP51G1179 FK18 HYD122 DWF7106 DWF55 DWF128
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 Basal angiosperms (2224)
Current lineage filter: Basal angiosperms. 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
Hits2224
Monocots
Hits0
Eudicots
Hits0
Species Distribution
Brasenia schreberi
Annona cherimola
Cinnamomum kanehirae
Cinnamomum camphora
Chloranthus sessilifolius
Amborella trichopoda
Piper nigrum
Aristolochia contorta
Nymphaea colorata
Liriodendron chinense
Lineage Summary
Basal angiosperms
2224
Module Gene List
Reset
GeneSpeciesProtein ID
cinnamomum_camphora_GWHPBGXC010078 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC010078
cinnamomum_camphora_GWHPBGXC010553 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC010553
cinnamomum_camphora_GWHPBGXC010799 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC010799
cinnamomum_camphora_GWHPBGXC010860 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC010860
cinnamomum_camphora_GWHPBGXC011345 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC011345
cinnamomum_camphora_GWHPBGXC011426 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC011426
cinnamomum_camphora_GWHPBGXC011481 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC011481
cinnamomum_camphora_GWHPBGXC011487 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC011487
cinnamomum_camphora_GWHPBGXC012039 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC012039
cinnamomum_camphora_GWHPBGXC012057 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC012057
cinnamomum_camphora_GWHPBGXC012254 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC012254
cinnamomum_camphora_GWHPBGXC012304 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC012304
cinnamomum_camphora_GWHPBGXC012629 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC012629
cinnamomum_camphora_GWHPBGXC012634 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC012634
cinnamomum_camphora_GWHPBGXC012940 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC012940
cinnamomum_camphora_GWHPBGXC013331 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC013331
cinnamomum_camphora_GWHPBGXC013340 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC013340
cinnamomum_camphora_GWHPBGXC013468 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC013468
cinnamomum_camphora_GWHPBGXC014279 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC014279
cinnamomum_camphora_GWHPBGXC014892 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC014892
cinnamomum_camphora_GWHPBGXC014923 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC014923
cinnamomum_camphora_GWHPBGXC015188 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC015188
cinnamomum_camphora_GWHPBGXC015425 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC015425
cinnamomum_camphora_GWHPBGXC015444 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC015444
cinnamomum_camphora_GWHPBGXC015696 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC015696
cinnamomum_camphora_GWHPBGXC015700 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC015700
cinnamomum_camphora_GWHPBGXC015701 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC015701
cinnamomum_camphora_GWHPBGXC015702 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC015702
cinnamomum_camphora_GWHPBGXC015715 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC015715
cinnamomum_camphora_GWHPBGXC015809 cinnamomum_camphora cinnamomum_camphora_GWHPBGXC015809