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_scaffold27180145860 aethionema_arabicum AaraAA_scaffold27180145860
AaraAA_scaffold27180146410 aethionema_arabicum AaraAA_scaffold27180146410
AaraAA_scaffold27180146830 aethionema_arabicum AaraAA_scaffold27180146830
AaraAA_scaffold31730163230 aethionema_arabicum AaraAA_scaffold31730163230
AaraAA_scaffold3320168650 aethionema_arabicum AaraAA_scaffold3320168650
AaraAA_scaffold33370169330 aethionema_arabicum AaraAA_scaffold33370169330
AaraAA_scaffold33980173240 aethionema_arabicum AaraAA_scaffold33980173240
AaraAA_scaffold33980173250 aethionema_arabicum AaraAA_scaffold33980173250
AaraAA_scaffold34090174790 aethionema_arabicum AaraAA_scaffold34090174790
AaraAA_scaffold34090174800 aethionema_arabicum AaraAA_scaffold34090174800
AaraAA_scaffold34240175490 aethionema_arabicum AaraAA_scaffold34240175490
AaraAA_scaffold34280176370 aethionema_arabicum AaraAA_scaffold34280176370
AaraAA_scaffold34770177190 aethionema_arabicum AaraAA_scaffold34770177190
AaraAA_scaffold34830178440 aethionema_arabicum AaraAA_scaffold34830178440
AaraAA_scaffold35930186760 aethionema_arabicum AaraAA_scaffold35930186760
AaraAA_scaffold35930186830 aethionema_arabicum AaraAA_scaffold35930186830
AaraAA_scaffold36760191530 aethionema_arabicum AaraAA_scaffold36760191530
AaraAA_scaffold36760191540 aethionema_arabicum AaraAA_scaffold36760191540
AaraAA_scaffold39370201980 aethionema_arabicum AaraAA_scaffold39370201980
AaraAA_scaffold39530203410 aethionema_arabicum AaraAA_scaffold39530203410
AaraAA_scaffold41010208530 aethionema_arabicum AaraAA_scaffold41010208530
AaraAA_scaffold41300210060 aethionema_arabicum AaraAA_scaffold41300210060
AaraAA_scaffold41670213450 aethionema_arabicum AaraAA_scaffold41670213450
AaraAA_scaffold44290227150 aethionema_arabicum AaraAA_scaffold44290227150
AaraAA_scaffold45750233310 aethionema_arabicum AaraAA_scaffold45750233310
AaraAA_scaffold45830233500 aethionema_arabicum AaraAA_scaffold45830233500
AaraAA_scaffold46020234070 aethionema_arabicum AaraAA_scaffold46020234070
AaraAA_scaffold46020234080 aethionema_arabicum AaraAA_scaffold46020234080
AaraAA_scaffold47100237700 aethionema_arabicum AaraAA_scaffold47100237700
AaraAA_scaffold48910243790 aethionema_arabicum AaraAA_scaffold48910243790