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_tjs10719 alstonia_scholaris alstonia_scholaris_tjs10719
alstonia_scholaris_tjs10989 alstonia_scholaris alstonia_scholaris_tjs10989
alstonia_scholaris_tjs11115 alstonia_scholaris alstonia_scholaris_tjs11115
alstonia_scholaris_tjs11120 alstonia_scholaris alstonia_scholaris_tjs11120
alstonia_scholaris_tjs11157 alstonia_scholaris alstonia_scholaris_tjs11157
alstonia_scholaris_tjs11744 alstonia_scholaris alstonia_scholaris_tjs11744
alstonia_scholaris_tjs12426 alstonia_scholaris alstonia_scholaris_tjs12426
alstonia_scholaris_tjs12625 alstonia_scholaris alstonia_scholaris_tjs12625
alstonia_scholaris_tjs12627 alstonia_scholaris alstonia_scholaris_tjs12627
alstonia_scholaris_tjs12690 alstonia_scholaris alstonia_scholaris_tjs12690
alstonia_scholaris_tjs12705 alstonia_scholaris alstonia_scholaris_tjs12705
alstonia_scholaris_tjs13208 alstonia_scholaris alstonia_scholaris_tjs13208
alstonia_scholaris_tjs13383 alstonia_scholaris alstonia_scholaris_tjs13383
alstonia_scholaris_tjs13548 alstonia_scholaris alstonia_scholaris_tjs13548
alstonia_scholaris_tjs13573 alstonia_scholaris alstonia_scholaris_tjs13573
alstonia_scholaris_tjs14196 alstonia_scholaris alstonia_scholaris_tjs14196
alstonia_scholaris_tjs14405 alstonia_scholaris alstonia_scholaris_tjs14405
alstonia_scholaris_tjs14530 alstonia_scholaris alstonia_scholaris_tjs14530
alstonia_scholaris_tjs14532 alstonia_scholaris alstonia_scholaris_tjs14532
alstonia_scholaris_tjs15462 alstonia_scholaris alstonia_scholaris_tjs15462
alstonia_scholaris_tjs15589 alstonia_scholaris alstonia_scholaris_tjs15589
alstonia_scholaris_tjs15862 alstonia_scholaris alstonia_scholaris_tjs15862
alstonia_scholaris_tjs15887 alstonia_scholaris alstonia_scholaris_tjs15887
alstonia_scholaris_tjs16280 alstonia_scholaris alstonia_scholaris_tjs16280
alstonia_scholaris_tjs17133 alstonia_scholaris alstonia_scholaris_tjs17133
alstonia_scholaris_tjs17462 alstonia_scholaris alstonia_scholaris_tjs17462
alstonia_scholaris_tjs17470 alstonia_scholaris alstonia_scholaris_tjs17470
alstonia_scholaris_tjs17471 alstonia_scholaris alstonia_scholaris_tjs17471
alstonia_scholaris_tjs17472 alstonia_scholaris alstonia_scholaris_tjs17472
alstonia_scholaris_tjs17533 alstonia_scholaris alstonia_scholaris_tjs17533