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_tjs17789 alstonia_scholaris alstonia_scholaris_tjs17789
alstonia_scholaris_tjs17896 alstonia_scholaris alstonia_scholaris_tjs17896
alstonia_scholaris_tjs17912 alstonia_scholaris alstonia_scholaris_tjs17912
alstonia_scholaris_tjs18434 alstonia_scholaris alstonia_scholaris_tjs18434
alstonia_scholaris_tjs18498 alstonia_scholaris alstonia_scholaris_tjs18498
alstonia_scholaris_tjs18505 alstonia_scholaris alstonia_scholaris_tjs18505
alstonia_scholaris_tjs19021 alstonia_scholaris alstonia_scholaris_tjs19021
alstonia_scholaris_tjs19450 alstonia_scholaris alstonia_scholaris_tjs19450
alstonia_scholaris_tjs19468 alstonia_scholaris alstonia_scholaris_tjs19468
alstonia_scholaris_tjs19551 alstonia_scholaris alstonia_scholaris_tjs19551
alstonia_scholaris_tjs19699 alstonia_scholaris alstonia_scholaris_tjs19699
alstonia_scholaris_tjs20042 alstonia_scholaris alstonia_scholaris_tjs20042
alstonia_scholaris_tjs21005 alstonia_scholaris alstonia_scholaris_tjs21005
alstonia_scholaris_tjs21296 alstonia_scholaris alstonia_scholaris_tjs21296
alstonia_scholaris_tjs21701.1 alstonia_scholaris alstonia_scholaris_tjs21701.1
alstonia_scholaris_tjs22374 alstonia_scholaris alstonia_scholaris_tjs22374
alstonia_scholaris_tjs22375 alstonia_scholaris alstonia_scholaris_tjs22375
alstonia_scholaris_tjs22485 alstonia_scholaris alstonia_scholaris_tjs22485
alstonia_scholaris_tjs22805 alstonia_scholaris alstonia_scholaris_tjs22805
alstonia_scholaris_tjs22810 alstonia_scholaris alstonia_scholaris_tjs22810
alstonia_scholaris_tjs22811 alstonia_scholaris alstonia_scholaris_tjs22811
alstonia_scholaris_tjs23328 alstonia_scholaris alstonia_scholaris_tjs23328
alstonia_scholaris_tjs23381 alstonia_scholaris alstonia_scholaris_tjs23381
alstonia_scholaris_tjs23390 alstonia_scholaris alstonia_scholaris_tjs23390
alstonia_scholaris_tjs23755 alstonia_scholaris alstonia_scholaris_tjs23755
alstonia_scholaris_tjs23880 alstonia_scholaris alstonia_scholaris_tjs23880
alstonia_scholaris_tjs23977 alstonia_scholaris alstonia_scholaris_tjs23977
alstonia_scholaris_tjs24404 alstonia_scholaris alstonia_scholaris_tjs24404
alstonia_scholaris_tjs24405 alstonia_scholaris alstonia_scholaris_tjs24405
alstonia_scholaris_tjs24588 alstonia_scholaris alstonia_scholaris_tjs24588