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
EulmGWHAAAL000001310104540.1 eucommia_ulmoides EulmGWHAAAL000001310104540.1
euphorbia_peplus_WCJ18075.1 euphorbia_peplus euphorbia_peplus_WCJ18075.1
euphorbia_peplus_WCJ18076.1 euphorbia_peplus euphorbia_peplus_WCJ18076.1
euphorbia_peplus_WCJ18102.1 euphorbia_peplus euphorbia_peplus_WCJ18102.1
euphorbia_peplus_WCJ18103.1 euphorbia_peplus euphorbia_peplus_WCJ18103.1
euphorbia_peplus_WCJ18119.1 euphorbia_peplus euphorbia_peplus_WCJ18119.1
euphorbia_peplus_WCJ18121.1 euphorbia_peplus euphorbia_peplus_WCJ18121.1
euphorbia_peplus_WCJ25119.1 euphorbia_peplus euphorbia_peplus_WCJ25119.1
euphorbia_peplus_WCJ30497.1 euphorbia_peplus euphorbia_peplus_WCJ30497.1
euphorbia_peplus_WCJ32089.1 euphorbia_peplus euphorbia_peplus_WCJ32089.1
euphorbia_peplus_WCJ35602.1 euphorbia_peplus euphorbia_peplus_WCJ35602.1
euphorbia_peplus_WCJ35603.1 euphorbia_peplus euphorbia_peplus_WCJ35603.1
euphorbia_peplus_WCJ42720.1 euphorbia_peplus euphorbia_peplus_WCJ42720.1
Esalscaffold_10025090.1 eutrema_salsugineum Esalscaffold_10025090.1
Esalscaffold_150089290.1 eutrema_salsugineum Esalscaffold_150089290.1
Esalscaffold_60214680.1 eutrema_salsugineum Esalscaffold_60214680.1
Esalscaffold_60214690.1 eutrema_salsugineum Esalscaffold_60214690.1
Esalscaffold_80244570.1 eutrema_salsugineum Esalscaffold_80244570.1
fagopyrum_esculentum_FesPL4_r1.1_Chr1.g005910.1 fagopyrum_esculentum fagopyrum_esculentum_FesPL4_r1.1_Chr1.g005910.1
fagopyrum_esculentum_FesPL4_r1.1_Chr1.g265320.1 fagopyrum_esculentum fagopyrum_esculentum_FesPL4_r1.1_Chr1.g265320.1
fagopyrum_esculentum_FesPL4_r1.1_Chr3.g090880.1 fagopyrum_esculentum fagopyrum_esculentum_FesPL4_r1.1_Chr3.g090880.1
fagopyrum_esculentum_FesPL4_r1.1_Chr6.g007800.1 fagopyrum_esculentum fagopyrum_esculentum_FesPL4_r1.1_Chr6.g007800.1
FtPinG0002385500.01.T01 fagopyrum_tataricum FtPinG0002385500.01.T01
FtPinG0003066800.01.T01 fagopyrum_tataricum FtPinG0003066800.01.T01
FtPinG0003181600.01.T01 fagopyrum_tataricum FtPinG0003181600.01.T01
Falbscaffold1023_cov1920005380 faidherbia_albida Falbscaffold1023_cov1920005380
Falbscaffold1162_cov1960019800 faidherbia_albida Falbscaffold1162_cov1960019800
Falbscaffold51_cov2300191780 faidherbia_albida Falbscaffold51_cov2300191780
Falbscaffold626_cov1910207350 faidherbia_albida Falbscaffold626_cov1910207350
Fjavscaffold_100042040 fissidens_javanicus Fjavscaffold_100042040