PlantSME Plant secondary metabolism enzyme database
SQE

SQE

Triterpenoid/sterol-precursor shared module: SQS/SQE/OSC-family cyclases build the triterpenoid scaffold feeding sterol biosynthesis; overlap between terpenoid and steroid contexts is expected.

Atlas summary family SQE.

Lineage Coverage
Detected in 773 of 789 public species; click a lineage to inspect its species list.
Algae
Bryophytes
Lycophytes/Ferns
Gymnosperms
Basal angiosperms
Monocots
Eudicots
Species Distribution
Fragaria ananassa
Fragaria chiloensis
Rosa multiflora
Gossypium raimondii
Related Modules
Steroid pathway
Pathway Position Map
Pathways are arranged by literature-curated biosynthetic stages and highlight the current enzyme family; branched pathways are grouped by stage rather than forced into one linear reaction chain.
Curated order
Steroid pathway 4569 current-family members Du et al. 2022; Zebosi et al. 2024
Sterol precursor formation
SQS/FDFT1 4389 SQE 4569 CAS 35857
Phytosterol backbone
SMT1/SMT2/SMT3 27781 SMO1/SMO2 4067 CPI1 1261 CYP51G1 190 FK 1234 HYD1 1364 DWF7 1524 DWF5 888 DWF1 1689
Brassinosteroid branch
DET2 1316 DWF4/CYP90B1 290 CPD/CYP90A1 103 ROT3/CYP90C1 193 CYP90D1 142 BR6OX1/CYP85A1 40 BR6OX2/CYP85A2 68
Family Gene List
GeneSpeciesProtein ID
tapiscia_sinensis_evm.model.scaf_421.129 tapiscia_sinensis tapiscia_sinensis_evm.model.scaf_421.129
tapiscia_sinensis_evm.model.scaf_421.130 tapiscia_sinensis tapiscia_sinensis_evm.model.scaf_421.130
tapiscia_sinensis_evm.model.scaf_43.722 tapiscia_sinensis tapiscia_sinensis_evm.model.scaf_43.722
TkokGWHAAAA000011130023220.1 taraxacum_kok_saghyz TkokGWHAAAA000011130023220.1
TkokGWHAAAA000023430049000.1 taraxacum_kok_saghyz TkokGWHAAAA000023430049000.1
TkokGWHAAAA000123290236810.1 taraxacum_kok_saghyz TkokGWHAAAA000123290236810.1
TkokGWHAAAA000156940284490.1 taraxacum_kok_saghyz TkokGWHAAAA000156940284490.1
TkokGWHAAAA000171610306430.1 taraxacum_kok_saghyz TkokGWHAAAA000171610306430.1
TkokGWHAAAA000220670365670.1 taraxacum_kok_saghyz TkokGWHAAAA000220670365670.1
TchiHiC_scaffold_100068260.1 taxus_chinensis TchiHiC_scaffold_100068260.1
TchiHiC_scaffold_120166420.1 taxus_chinensis TchiHiC_scaffold_120166420.1
TchiHiC_scaffold_20180340.1 taxus_chinensis TchiHiC_scaffold_20180340.1
TchiHiC_scaffold_20192940.1 taxus_chinensis TchiHiC_scaffold_20192940.1
TchiHiC_scaffold_20196710.1 taxus_chinensis TchiHiC_scaffold_20196710.1
TchiHiC_scaffold_50264980.1 taxus_chinensis TchiHiC_scaffold_50264980.1
TchiHiC_scaffold_60319480.1 taxus_chinensis TchiHiC_scaffold_60319480.1
TchiHiC_scaffold_70342120.1 taxus_chinensis TchiHiC_scaffold_70342120.1
TchiHiC_scaffold_70358380.1 taxus_chinensis TchiHiC_scaffold_70358380.1
TchiHiC_scaffold_80384070.1 taxus_chinensis TchiHiC_scaffold_80384070.1
TchiHiC_scaffold_90405810.1 taxus_chinensis TchiHiC_scaffold_90405810.1
tectona_grandis_Tg02g02630.t1 tectona_grandis tectona_grandis_Tg02g02630.t1
tectona_grandis_Tg03g00320.t1 tectona_grandis tectona_grandis_Tg03g00320.t1
tectona_grandis_Tg08g14490.t1 tectona_grandis tectona_grandis_Tg08g14490.t1
tectona_grandis_Tg08g17320.t1 tectona_grandis tectona_grandis_Tg08g17320.t1
tectona_grandis_Tg12g11250.t1 tectona_grandis tectona_grandis_Tg12g11250.t1
tectona_grandis_Tg12g12240.t1 tectona_grandis tectona_grandis_Tg12g12240.t1
tectona_grandis_Tg12g16540.t1 tectona_grandis tectona_grandis_Tg12g16540.t1
tectona_grandis_TgUn321g00020.t1 tectona_grandis tectona_grandis_TgUn321g00020.t1
PNG99144.1_tsocial tetrabaena_socialis PNG99144.1_tsocial
PNH02071.1_tsocial tetrabaena_socialis PNH02071.1_tsocial