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_scaffold48910243800 aethionema_arabicum AaraAA_scaffold48910243800
AaraAA_scaffold490244100 aethionema_arabicum AaraAA_scaffold490244100
AaraAA_scaffold50570255190 aethionema_arabicum AaraAA_scaffold50570255190
AaraAA_scaffold50570255200 aethionema_arabicum AaraAA_scaffold50570255200
AaraAA_scaffold50570255210 aethionema_arabicum AaraAA_scaffold50570255210
AaraAA_scaffold50570255240 aethionema_arabicum AaraAA_scaffold50570255240
AaraAA_scaffold50570255250 aethionema_arabicum AaraAA_scaffold50570255250
AaraAA_scaffold5170261560 aethionema_arabicum AaraAA_scaffold5170261560
AaraAA_scaffold52400265760 aethionema_arabicum AaraAA_scaffold52400265760
AaraAA_scaffold52790268430 aethionema_arabicum AaraAA_scaffold52790268430
AaraAA_scaffold53540271550 aethionema_arabicum AaraAA_scaffold53540271550
AaraAA_scaffold53620271990 aethionema_arabicum AaraAA_scaffold53620271990
AaraAA_scaffold53700272270 aethionema_arabicum AaraAA_scaffold53700272270
AaraAA_scaffold54240275270 aethionema_arabicum AaraAA_scaffold54240275270
AaraAA_scaffold55300280980 aethionema_arabicum AaraAA_scaffold55300280980
AaraAA_scaffold55900285480 aethionema_arabicum AaraAA_scaffold55900285480
AaraAA_scaffold56420288130 aethionema_arabicum AaraAA_scaffold56420288130
AaraAA_scaffold56990296430 aethionema_arabicum AaraAA_scaffold56990296430
AaraAA_scaffold59210312810 aethionema_arabicum AaraAA_scaffold59210312810
AaraAA_scaffold61090322420 aethionema_arabicum AaraAA_scaffold61090322420
AaraAA_scaffold61090322430 aethionema_arabicum AaraAA_scaffold61090322430
AaraAA_scaffold61090322440 aethionema_arabicum AaraAA_scaffold61090322440
AaraAA_scaffold61090322450 aethionema_arabicum AaraAA_scaffold61090322450
AaraAA_scaffold61090322460 aethionema_arabicum AaraAA_scaffold61090322460
AaraAA_scaffold61130323000 aethionema_arabicum AaraAA_scaffold61130323000
AaraAA_scaffold62470328610 aethionema_arabicum AaraAA_scaffold62470328610
AaraAA_scaffold62470329670 aethionema_arabicum AaraAA_scaffold62470329670
AaraAA_scaffold62470329770 aethionema_arabicum AaraAA_scaffold62470329770
AaraAA_scaffold62470329820 aethionema_arabicum AaraAA_scaffold62470329820
AaraAA_scaffold62470329830 aethionema_arabicum AaraAA_scaffold62470329830