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_tjs01320 alstonia_scholaris alstonia_scholaris_tjs01320
alstonia_scholaris_tjs01473 alstonia_scholaris alstonia_scholaris_tjs01473
alstonia_scholaris_tjs02632 alstonia_scholaris alstonia_scholaris_tjs02632
alstonia_scholaris_tjs02961 alstonia_scholaris alstonia_scholaris_tjs02961
alstonia_scholaris_tjs03085 alstonia_scholaris alstonia_scholaris_tjs03085
alstonia_scholaris_tjs03361 alstonia_scholaris alstonia_scholaris_tjs03361
alstonia_scholaris_tjs03379 alstonia_scholaris alstonia_scholaris_tjs03379
alstonia_scholaris_tjs03885 alstonia_scholaris alstonia_scholaris_tjs03885
alstonia_scholaris_tjs05109 alstonia_scholaris alstonia_scholaris_tjs05109
alstonia_scholaris_tjs05743 alstonia_scholaris alstonia_scholaris_tjs05743
alstonia_scholaris_tjs05908 alstonia_scholaris alstonia_scholaris_tjs05908
alstonia_scholaris_tjs06299 alstonia_scholaris alstonia_scholaris_tjs06299
alstonia_scholaris_tjs06522 alstonia_scholaris alstonia_scholaris_tjs06522
alstonia_scholaris_tjs06811 alstonia_scholaris alstonia_scholaris_tjs06811
alstonia_scholaris_tjs06984 alstonia_scholaris alstonia_scholaris_tjs06984
alstonia_scholaris_tjs07889 alstonia_scholaris alstonia_scholaris_tjs07889
alstonia_scholaris_tjs07932 alstonia_scholaris alstonia_scholaris_tjs07932
alstonia_scholaris_tjs08095 alstonia_scholaris alstonia_scholaris_tjs08095
alstonia_scholaris_tjs08250 alstonia_scholaris alstonia_scholaris_tjs08250
alstonia_scholaris_tjs08277 alstonia_scholaris alstonia_scholaris_tjs08277
alstonia_scholaris_tjs08403 alstonia_scholaris alstonia_scholaris_tjs08403
alstonia_scholaris_tjs09425 alstonia_scholaris alstonia_scholaris_tjs09425
alstonia_scholaris_tjs09426 alstonia_scholaris alstonia_scholaris_tjs09426
alstonia_scholaris_tjs09779 alstonia_scholaris alstonia_scholaris_tjs09779
alstonia_scholaris_tjs09789 alstonia_scholaris alstonia_scholaris_tjs09789
alstonia_scholaris_tjs09949 alstonia_scholaris alstonia_scholaris_tjs09949
alstonia_scholaris_tjs09977 alstonia_scholaris alstonia_scholaris_tjs09977
alstonia_scholaris_tjs10324 alstonia_scholaris alstonia_scholaris_tjs10324
alstonia_scholaris_tjs10403 alstonia_scholaris alstonia_scholaris_tjs10403
alstonia_scholaris_tjs10427 alstonia_scholaris alstonia_scholaris_tjs10427