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/FDFT14389 SQE4569 CAS35857
Product
Cycloartenol
C30H50O
tetracyclic sterol nucleus with cyclopropyl side
SQS/SQE/CAS convert FPP-derived linear triterpenes into the plant sterol core.
Brassinosteroid Branch
Lineage Distribution
Assignments under this module are distributed across the following plant lineages.
All Lineages Algae (569) Bryophytes (5698) Lycophytes/Ferns (189) Gymnosperms (791) Basal angiosperms (1411) Monocots (17019) Eudicots (61245)
Algae
Hits569
Bryophytes
Hits5698
Lycophytes/Ferns
Hits189
Gymnosperms
Hits791
Basal angiosperms
Hits1411
Monocots
Hits17019
Eudicots
Hits61245
Species Distribution
Hordeum vulgare
Triticum turgidum
Aegilops tauschii
Fragaria ananassa
Triticum aestivum
Panicum virgatum
Prunus domestica
Camelina sativa
Avena sativa
Brassica carinata
Lineage Summary
Algae
569
Bryophytes
5698
Lycophytes/Ferns
189
Gymnosperms
791
Basal angiosperms
1411
Monocots
17019
Eudicots
61245
Module Gene List
GeneSpeciesProtein ID
alstonia_scholaris_tjs24929 alstonia_scholaris alstonia_scholaris_tjs24929
alstonia_scholaris_tjs25147 alstonia_scholaris alstonia_scholaris_tjs25147
alstonia_scholaris_tjs25281 alstonia_scholaris alstonia_scholaris_tjs25281
alstonia_scholaris_tjs25394 alstonia_scholaris alstonia_scholaris_tjs25394
alstonia_scholaris_tjs25395 alstonia_scholaris alstonia_scholaris_tjs25395
alstonia_scholaris_tjs25817 alstonia_scholaris alstonia_scholaris_tjs25817
alstonia_scholaris_tjs26589 alstonia_scholaris alstonia_scholaris_tjs26589
alstonia_scholaris_tjs26764 alstonia_scholaris alstonia_scholaris_tjs26764
alstonia_scholaris_tjs27017 alstonia_scholaris alstonia_scholaris_tjs27017
alstonia_scholaris_tjs27381 alstonia_scholaris alstonia_scholaris_tjs27381
alstonia_scholaris_tjs28183 alstonia_scholaris alstonia_scholaris_tjs28183
alstonia_scholaris_tjs28201 alstonia_scholaris alstonia_scholaris_tjs28201
alstonia_scholaris_tjs28546 alstonia_scholaris alstonia_scholaris_tjs28546
alstonia_scholaris_tjs28653 alstonia_scholaris alstonia_scholaris_tjs28653
alstonia_scholaris_tjs29021 alstonia_scholaris alstonia_scholaris_tjs29021
alstonia_scholaris_tjs29102 alstonia_scholaris alstonia_scholaris_tjs29102
alstonia_scholaris_tjs29376 alstonia_scholaris alstonia_scholaris_tjs29376
alstonia_scholaris_tjs29579 alstonia_scholaris alstonia_scholaris_tjs29579
alstonia_scholaris_tjs29724 alstonia_scholaris alstonia_scholaris_tjs29724
alstonia_scholaris_tjs29775 alstonia_scholaris alstonia_scholaris_tjs29775
alstonia_scholaris_tjs29924 alstonia_scholaris alstonia_scholaris_tjs29924
alstonia_scholaris_tjs30419 alstonia_scholaris alstonia_scholaris_tjs30419
alstonia_scholaris_tjs30760 alstonia_scholaris alstonia_scholaris_tjs30760
alstonia_scholaris_tjs30761 alstonia_scholaris alstonia_scholaris_tjs30761
alstonia_scholaris_tjs30975 alstonia_scholaris alstonia_scholaris_tjs30975
alstonia_scholaris_tjs31095 alstonia_scholaris alstonia_scholaris_tjs31095
alstonia_scholaris_tjs31131 alstonia_scholaris alstonia_scholaris_tjs31131
alstonia_scholaris_tjs31577 alstonia_scholaris alstonia_scholaris_tjs31577
alstonia_scholaris_tjs31599 alstonia_scholaris alstonia_scholaris_tjs31599
alstonia_scholaris_tjs31659 alstonia_scholaris alstonia_scholaris_tjs31659