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
AaraAA_scaffold16540089360 aethionema_arabicum AaraAA_scaffold16540089360
AaraAA_scaffold18430100410 aethionema_arabicum AaraAA_scaffold18430100410
AaraAA_scaffold18680103480 aethionema_arabicum AaraAA_scaffold18680103480
AaraAA_scaffold18800103950 aethionema_arabicum AaraAA_scaffold18800103950
AaraAA_scaffold19600109570 aethionema_arabicum AaraAA_scaffold19600109570
AaraAA_scaffold19900111250 aethionema_arabicum AaraAA_scaffold19900111250
AaraAA_scaffold21940117770 aethionema_arabicum AaraAA_scaffold21940117770
AaraAA_scaffold21940117780 aethionema_arabicum AaraAA_scaffold21940117780
AaraAA_scaffold22200118500 aethionema_arabicum AaraAA_scaffold22200118500
AaraAA_scaffold22600120920 aethionema_arabicum AaraAA_scaffold22600120920
AaraAA_scaffold22600120930 aethionema_arabicum AaraAA_scaffold22600120930
AaraAA_scaffold2290123240 aethionema_arabicum AaraAA_scaffold2290123240
AaraAA_scaffold2290123330 aethionema_arabicum AaraAA_scaffold2290123330
AaraAA_scaffold23300126600 aethionema_arabicum AaraAA_scaffold23300126600
AaraAA_scaffold24010130270 aethionema_arabicum AaraAA_scaffold24010130270
AaraAA_scaffold25030134570 aethionema_arabicum AaraAA_scaffold25030134570
AaraAA_scaffold25030134580 aethionema_arabicum AaraAA_scaffold25030134580
AaraAA_scaffold25030134590 aethionema_arabicum AaraAA_scaffold25030134590
AaraAA_scaffold25030134600 aethionema_arabicum AaraAA_scaffold25030134600
AaraAA_scaffold25030134610 aethionema_arabicum AaraAA_scaffold25030134610
AaraAA_scaffold25030134620 aethionema_arabicum AaraAA_scaffold25030134620
AaraAA_scaffold25030134630 aethionema_arabicum AaraAA_scaffold25030134630
AaraAA_scaffold25030134640 aethionema_arabicum AaraAA_scaffold25030134640
AaraAA_scaffold25030134650 aethionema_arabicum AaraAA_scaffold25030134650
AaraAA_scaffold25030134670 aethionema_arabicum AaraAA_scaffold25030134670
AaraAA_scaffold25030134730 aethionema_arabicum AaraAA_scaffold25030134730
AaraAA_scaffold25030134740 aethionema_arabicum AaraAA_scaffold25030134740
AaraAA_scaffold25030134750 aethionema_arabicum AaraAA_scaffold25030134750
AaraAA_scaffold25030134760 aethionema_arabicum AaraAA_scaffold25030134760
AaraAA_scaffold25350139200 aethionema_arabicum AaraAA_scaffold25350139200