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
Avestig00000655_pilon0134660.1 aldrovanda_vesiculosa Avestig00000655_pilon0134660.1
Avestig00000669_pilon0135010.1 aldrovanda_vesiculosa Avestig00000669_pilon0135010.1
Avestig00000905_pilon0141730.1 aldrovanda_vesiculosa Avestig00000905_pilon0141730.1
Avestig00001052_pilon0145060.1 aldrovanda_vesiculosa Avestig00001052_pilon0145060.1
Avestig00001188_pilon0150480.1 aldrovanda_vesiculosa Avestig00001188_pilon0150480.1
Avestig00001401_pilon0156680.1 aldrovanda_vesiculosa Avestig00001401_pilon0156680.1
Avestig00001625_pilon0159660.1 aldrovanda_vesiculosa Avestig00001625_pilon0159660.1
Avestig00001832_pilon0163790.1 aldrovanda_vesiculosa Avestig00001832_pilon0163790.1
Avestig00002108_pilon0167630.1 aldrovanda_vesiculosa Avestig00002108_pilon0167630.1
Avestig00002141_pilon0168420.1 aldrovanda_vesiculosa Avestig00002141_pilon0168420.1
Avestig00002330_pilon0171960.1 aldrovanda_vesiculosa Avestig00002330_pilon0171960.1
Avestig00004368_pilon0186200.1 aldrovanda_vesiculosa Avestig00004368_pilon0186200.1
Avestig00010553_pilon0189430.1 aldrovanda_vesiculosa Avestig00010553_pilon0189430.1
Avestig00010558_pilon0196910.1 aldrovanda_vesiculosa Avestig00010558_pilon0196910.1
Avestig00010580_pilon0206590.1 aldrovanda_vesiculosa Avestig00010580_pilon0206590.1
Avestig00010580_pilon0206600.1 aldrovanda_vesiculosa Avestig00010580_pilon0206600.1
Avestig00010586_pilon0208870.1 aldrovanda_vesiculosa Avestig00010586_pilon0208870.1
Avestig00010586_pilon0209080.1 aldrovanda_vesiculosa Avestig00010586_pilon0209080.1
Avestig00010586_pilon0209200.1 aldrovanda_vesiculosa Avestig00010586_pilon0209200.1
Avestig00010587_pilon0211260.1 aldrovanda_vesiculosa Avestig00010587_pilon0211260.1
Avestig00010600_pilon0213970.1 aldrovanda_vesiculosa Avestig00010600_pilon0213970.1
Avestig00010601_pilon0216590.1 aldrovanda_vesiculosa Avestig00010601_pilon0216590.1
Avestig00010608_pilon0219050.1 aldrovanda_vesiculosa Avestig00010608_pilon0219050.1
Avestig00010608_pilon0219140.1 aldrovanda_vesiculosa Avestig00010608_pilon0219140.1
Avestig00010620_pilon0220800.1 aldrovanda_vesiculosa Avestig00010620_pilon0220800.1
Avestig00010648_pilon0227090.1 aldrovanda_vesiculosa Avestig00010648_pilon0227090.1
Avestig00010677_pilon0230170.1 aldrovanda_vesiculosa Avestig00010677_pilon0230170.1
Avestig00010719_pilon0234340.1 aldrovanda_vesiculosa Avestig00010719_pilon0234340.1
Avestig00010778_pilon0237870.1 aldrovanda_vesiculosa Avestig00010778_pilon0237870.1
Avestig00010791_pilon0238460.1 aldrovanda_vesiculosa Avestig00010791_pilon0238460.1