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
At.04g193050-v1.1.a1 amaranthus_tuberculatus At.04g193050-v1.1.a1
At.04g193650-v1.1.a1 amaranthus_tuberculatus At.04g193650-v1.1.a1
At.04g197500-v1.1.a1 amaranthus_tuberculatus At.04g197500-v1.1.a1
At.05g108770-v1.1.a1 amaranthus_tuberculatus At.05g108770-v1.1.a1
At.05g198150-v1.1.a1 amaranthus_tuberculatus At.05g198150-v1.1.a1
At.05g199770-v1.1.a1 amaranthus_tuberculatus At.05g199770-v1.1.a1
At.05g216050-v1.1.a1 amaranthus_tuberculatus At.05g216050-v1.1.a1
At.06g122180-v1.1.a1 amaranthus_tuberculatus At.06g122180-v1.1.a1
At.06g230550-v1.1.a1 amaranthus_tuberculatus At.06g230550-v1.1.a1
At.06g231870-v1.1.a1 amaranthus_tuberculatus At.06g231870-v1.1.a1
At.06g231880-v1.1.a1 amaranthus_tuberculatus At.06g231880-v1.1.a1
At.06g232220-v1.1.a1 amaranthus_tuberculatus At.06g232220-v1.1.a1
At.08g254740-v1.1.a1 amaranthus_tuberculatus At.08g254740-v1.1.a1
At.08g254760-v1.1.a1 amaranthus_tuberculatus At.08g254760-v1.1.a1
At.08g259940-v1.1.a1 amaranthus_tuberculatus At.08g259940-v1.1.a1
At.08g261520-v1.1.a1 amaranthus_tuberculatus At.08g261520-v1.1.a1
At.08g262430-v1.1.a1 amaranthus_tuberculatus At.08g262430-v1.1.a1
At.08g263390-v1.1.a1 amaranthus_tuberculatus At.08g263390-v1.1.a1
At.09g275320-v1.1.a1 amaranthus_tuberculatus At.09g275320-v1.1.a1
AtriAmTr_v1.0_scaffold000010001220.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000010001220.1
AtriAmTr_v1.0_scaffold000020006210.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000020006210.1
AtriAmTr_v1.0_scaffold000020010060.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000020010060.1
AtriAmTr_v1.0_scaffold000020012240.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000020012240.1
AtriAmTr_v1.0_scaffold000030013220.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000030013220.1
AtriAmTr_v1.0_scaffold000030014750.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000030014750.1
AtriAmTr_v1.0_scaffold000030015570.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000030015570.1
AtriAmTr_v1.0_scaffold000030015630.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000030015630.1
AtriAmTr_v1.0_scaffold000040017490.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000040017490.1
AtriAmTr_v1.0_scaffold000040017500.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000040017500.1
AtriAmTr_v1.0_scaffold000040017510.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000040017510.1